From a3467f3adccb20fa37a43bdd5c3ff6c7aa853fcf Mon Sep 17 00:00:00 2001
From: headlessNode <harriskhan047@outlook.com>
Date: Thu, 12 Mar 2026 23:37:34 +0500
Subject: [PATCH 1/6] feat: add blas/ext/base/sdiff

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
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    status: passed
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---
---
 .../@stdlib/blas/ext/base/sdiff/README.md     | 391 ++++++++++
 .../ext/base/sdiff/benchmark/benchmark.js     | 124 ++++
 .../base/sdiff/benchmark/benchmark.native.js  | 129 ++++
 .../base/sdiff/benchmark/benchmark.ndarray.js | 124 ++++
 .../benchmark/benchmark.ndarray.native.js     | 129 ++++
 .../blas/ext/base/sdiff/benchmark/c/Makefile  | 146 ++++
 .../base/sdiff/benchmark/c/benchmark.length.c | 273 +++++++
 .../@stdlib/blas/ext/base/sdiff/binding.gyp   | 265 +++++++
 .../@stdlib/blas/ext/base/sdiff/docs/repl.txt | 187 +++++
 .../blas/ext/base/sdiff/docs/types/index.d.ts | 153 ++++
 .../blas/ext/base/sdiff/docs/types/test.ts    | 681 ++++++++++++++++++
 .../blas/ext/base/sdiff/examples/c/Makefile   | 146 ++++
 .../blas/ext/base/sdiff/examples/c/example.c  |  45 ++
 .../blas/ext/base/sdiff/examples/index.js     |  45 ++
 .../@stdlib/blas/ext/base/sdiff/include.gypi  |  70 ++
 .../include/stdlib/blas/ext/base/sdiff.h      |  46 ++
 .../@stdlib/blas/ext/base/sdiff/lib/index.js  |  80 ++
 .../@stdlib/blas/ext/base/sdiff/lib/main.js   |  35 +
 .../@stdlib/blas/ext/base/sdiff/lib/native.js |  35 +
 .../blas/ext/base/sdiff/lib/ndarray.js        | 248 +++++++
 .../blas/ext/base/sdiff/lib/ndarray.native.js |  76 ++
 .../@stdlib/blas/ext/base/sdiff/lib/sdiff.js  |  77 ++
 .../blas/ext/base/sdiff/lib/sdiff.native.js   |  71 ++
 .../@stdlib/blas/ext/base/sdiff/manifest.json |  81 +++
 .../@stdlib/blas/ext/base/sdiff/package.json  |  74 ++
 .../@stdlib/blas/ext/base/sdiff/src/Makefile  |  70 ++
 .../@stdlib/blas/ext/base/sdiff/src/addon.c   |  86 +++
 .../@stdlib/blas/ext/base/sdiff/src/main.c    | 235 ++++++
 .../@stdlib/blas/ext/base/sdiff/test/test.js  |  38 +
 .../blas/ext/base/sdiff/test/test.ndarray.js  | 302 ++++++++
 .../base/sdiff/test/test.ndarray.native.js    | 310 ++++++++
 .../blas/ext/base/sdiff/test/test.sdiff.js    | 289 ++++++++
 .../ext/base/sdiff/test/test.sdiff.native.js  | 298 ++++++++
 33 files changed, 5359 insertions(+)
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 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.js
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 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.native.js
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 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/example.c
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 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sdiff/include/stdlib/blas/ext/base/sdiff.h
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 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.sdiff.native.js

diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md b/lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md
new file mode 100644
index 000000000000..7ff00dca458e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md
@@ -0,0 +1,391 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# sdiff
+
+> Calculate the k-th discrete forward difference of a single-precision floating-point strided array.
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var sdiff = require( '@stdlib/blas/ext/base/sdiff' );
+```
+
+<!-- lint disable maximum-heading-length -->
+
+#### sdiff( N, k, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut, workspace, strideW )
+
+Calculates the k-th discrete forward differences of a single-precision floating-point strided array.
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+
+var x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+var p = new Float32Array( [ 1.0 ] );
+var a = new Float32Array( [ 11.0 ] );
+var out = new Float32Array( 6 );
+var w = new Float32Array( 6 );
+
+sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+console.log( out );
+// out => <Float32Array>[ 1.0, 2.0, 2.0, 2.0, 2.0, 1.0 ]
+```
+
+The function has the following parameters:
+
+-   **N**: number of indexed elements.
+-   **k**: number of times to recursively compute differences.
+-   **x**: input [`Float32Array`][@stdlib/array/float32].
+-   **strideX**: stride length for `x`.
+-   **N1**: number of elements to `prepend`.
+-   **prepend**: a [`Float32Array`][@stdlib/array/float32] containing values to prepend prior to computing differences.
+-   **strideP**: stride length for `prepend`.
+-   **N2**: number of elements to `append`.
+-   **append**: a [`Float32Array`][@stdlib/array/float32] containing values to append prior to computing differences.
+-   **strideA**: stride length for `append`.
+-   **out**: output [`Float32Array`][@stdlib/array/float32]. Must have `N + N1 + N2 - k` elements.
+-   **strideOut**: stride length for `out`.
+-   **workspace**: workspace [`Float32Array`][@stdlib/array/float32]. Must have `N + N1 + N2 - 1` elements.
+-   **strideW**: stride length for `workspace`.
+
+The `N` and stride parameters determine which elements in the strided array are accessed at runtime. For example, to differences of every other element:
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+
+var x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+var p = new Float32Array( [ 1.0 ] );
+var a = new Float32Array( [ 11.0 ] );
+var out = new Float32Array( 4 );
+var w = new Float32Array( 4 );
+
+sdiff( 3, 1, x, 2, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+console.log( out );
+// out => <Float32Array>[ 1.0, 4.0, 4.0, 1.0 ]
+```
+
+Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+
+// Initial array...
+var x0 = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+
+// Create an offset view...
+var x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+
+var p = new Float32Array( [ 1.0 ] );
+var a = new Float32Array( [ 11.0 ] );
+var out = new Float32Array( 5 );
+var w = new Float32Array( 5 );
+
+sdiff( x1.length, 1, x1, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+console.log( out );
+// out => <Float32Array>[ 3.0, 2.0, 2.0, 2.0, 1.0 ]
+```
+
+<!-- lint disable maximum-heading-length -->
+
+#### sdiff.ndarray( N, k, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut, workspace, strideW, offsetW )
+
+Calculates the k-th discrete forward differences of a single-precision floating-point strided array using alternative indexing semantics.
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+
+var x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+var p = new Float32Array( [ 1.0 ] );
+var a = new Float32Array( [ 11.0 ] );
+var out = new Float32Array( 6 );
+var w = new Float32Array( 6 );
+
+sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+console.log( out );
+// out => <Float32Array>[ 1.0, 2.0, 2.0, 2.0, 2.0, 1.0 ]
+```
+
+The function has the following additional parameters:
+
+-   **offsetX**: starting index for `x`.
+-   **offsetP**: starting index for `prepend`.
+-   **offsetA**: starting index for `append`.
+-   **offsetOut**: starting index for `out`.
+-   **offsetW**: starting index of `workspace`.
+
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example, to access only the last three elements:
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+
+var x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+var p = new Float32Array( [ 1.0 ] );
+var a = new Float32Array( [ 11.0 ] );
+var out = new Float32Array( 4 );
+var w = new Float32Array( 4 );
+
+sdiff.ndarray( 3, 1, x, 1, x.length-3, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+console.log( out );
+// out => <Float32Array>[ 5.0, 2.0, 2.0, 1.0 ]
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="notes">
+
+## Notes
+
+-   If `N <= 0`, both functions return the output array unchanged.
+
+</section>
+
+<!-- /.notes -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var Float32Array = require( '@stdlib/array/float32' );
+var sdiff = require( '@stdlib/blas/ext/base/sdiff' );
+
+var x = discreteUniform( 10, -100, 100, {
+    'dtype': 'float32'
+});
+console.log( 'Input array: ', x );
+
+var p = discreteUniform( 2, -100, 100, {
+    'dtype': 'float32'
+});
+console.log( 'Prepend array: ', p );
+
+var a = discreteUniform( 2, -100, 100, {
+    'dtype': 'float32'
+});
+console.log( 'Append array: ', a );
+
+var out = new Float32Array( 10 );
+
+var w = new Float32Array( 13 );
+
+sdiff( x.length, 4, x, 1, 2, p, 1, 2, a, 1, out, 1, w, 1 );
+console.log( 'Output', out );
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+#include "stdlib/blas/ext/base/sdiff.h"
+```
+
+<!-- lint disable maximum-heading-length -->
+
+#### stdlib_strided_sdiff( N, k, X, strideX, N1, prepend, strideP, N2, append, strideA, \*Out, strideOut, \*Workspace, strideW )
+
+Calculates the k-th discrete forward differences of a single-precision floating-point strided array.
+
+```c
+const float x[] = { 2.0f, 4.0f, 6.0f, 8.0f, 10.0f };
+const float p[] = { 1.0f };
+const float a[] = { 11.0f };
+float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+float w[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+stdlib_strided_sdiff( 5, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+```
+
+The function accepts the following arguments:
+
+-   **N**: `[in] CBLAS_INT` number of indexed elements.
+-   **k**: `[in] CBLAS_INT` number of times to recursively compute differences.
+-   **X**: `[in] float*` input array.
+-   **strideX**: `[in] CBLAS_INT` stride length for `x`.
+-   **N1**: `[in] CBLAS_INT` number of elements in `prepend`.
+-   **prepend**: `[in] float*` array containing values to prepend prior to computing differences.
+-   **strideP**: `[in] CBLAS_INT` stride length for `prepend`.
+-   **N2**: `[in] CBLAS_INT` number of elements in `append`.
+-   **append**: `[in] float*` array containing values to append prior to computing differences.
+-   **strideA**: `[in] CBLAS_INT` stride length for `append`.
+-   **Out**: `[inout] float*` output array. Must have `N + N1 + N2 - k` elements.
+-   **strideOut**: `[in] CBLAS_INT` stride length for `out`.
+-   **Workspace**: `[inout] float*` workspace array. Must have `N + N1 + N2 - 1` elements.
+-   **strideW**: `[in] CBLAS_INT` stride length for `workspace`.
+
+```c
+void stdlib_strided_sdiff( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, float *Out, const CBLAS_INT strideOut, float *Workspace, const CBLAS_INT strideW );
+```
+
+<!-- lint disable maximum-heading-length -->
+
+#### stdlib_strided_sdiff_ndarray( N, k, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, \*Out, strideOut, offsetOut, \*Workspace, strideW, offsetW )
+
+Calculates the k-th discrete forward differences of a single-precision floating-point strided array using alternative indexing semantics.
+
+```c
+const float x[] = { 2.0f, 4.0f, 6.0f, 8.0f, 10.0f };
+const float p[] = { 1.0f };
+const float a[] = { 11.0f };
+float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+float w[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+stdlib_strided_sdiff_ndarray( 5, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+```
+
+The function accepts the following arguments:
+
+-   **N**: `[in] CBLAS_INT` number of indexed elements.
+-   **k**: `[in] CBLAS_INT` number of times to recursively compute differences.
+-   **X**: `[in] float*` input array.
+-   **strideX**: `[in] CBLAS_INT` stride length for `x`.
+-   **offsetX**: `[in] CBLAS_INT` starting index for `x`.
+-   **N1**: `[in] CBLAS_INT` number of elements in `prepend`.
+-   **prepend**: `[in] float*` array containing values to prepend prior to computing differences.
+-   **strideP**: `[in] CBLAS_INT` stride length for `prepend`.
+-   **offsetP**: `[in] CBLAS_INT` starting index for `prepend`.
+-   **N2**: `[in] CBLAS_INT` number of elements in `append`.
+-   **append**: `[in] float*` array containing values to append prior to computing differences.
+-   **strideA**: `[in] CBLAS_INT` stride length for `append`.
+-   **offsetA**: `[in] CBLAS_INT` starting index for `append`.
+-   **Out**: `[inout] float*` output array. Must have `N + N1 + N2 - k` elements.
+-   **strideOut**: `[in] CBLAS_INT` stride length for `out`.
+-   **offsetOut**: `[in] CBLAS_INT` starting index for `out`.
+-   **Workspace**: `[inout] float*` workspace array. Must have `N + N1 + N2 - 1` elements.
+-   **strideW**: `[in] CBLAS_INT` stride length for `workspace`.
+-   **offsetW**: `[in] CBLAS_INT` starting index for `workspace`.
+
+```c
+void stdlib_strided_sdiff_ndarray( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut, float *Workspace, const CBLAS_INT strideW, const CBLAS_INT offsetW );
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+### Examples
+
+```c
+#include "stdlib/blas/ext/base/sdiff.h"
+#include <stdio.h>
+
+int main( void ) {
+    // Create a strided array:
+    const float x[] = { 1.0f, -2.0f, 3.0f, -4.0f, 5.0f, -6.0f, 7.0f, -8.0f };
+
+    // Define prepend values:
+    const float p[] = { -1.0f };
+
+    // Define append values:
+    const float a[] = { 10.0f };
+
+    // Define output array:
+    float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+    // Define workspace:
+    float w[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+    // Compute forward differences:
+    stdlib_strided_sdiff( 8, 3, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+    // Print the result:
+    for ( int i = 0; i < 7; i++ ) {
+        printf( "out[ %i ] = %f\n", i, out[ i ] );
+    }
+}
+```
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+[@stdlib/array/float32]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/float32
+
+[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
+
+<!-- <related-links> -->
+
+<!-- </related-links> -->
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.js
new file mode 100644
index 000000000000..b9d5ad893ff7
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.js
@@ -0,0 +1,124 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float32Array = require( '@stdlib/array/float32' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var sdiff = require( './../lib/sdiff.js' );
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'float32'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var ol;
+	var N1;
+	var N2;
+	var x;
+	var p;
+	var a;
+	var w;
+	var o;
+	var k;
+	var N;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	k = 1; // worst case: N + N1 + N2 - 1
+	ol = N + N1 + N2 - k;
+
+	x = uniform( N, -100, 100, options );
+	p = uniform( N1, -100, 100, options );
+	a = uniform( N2, -100, 100, options );
+	w = new Float32Array( N+N1+N2-1 );
+	o = new Float32Array( ol );
+	return benchmark;
+
+	/**
+	* Benchmark function.
+	*
+	* @private
+	* @param {Benchmark} b - benchmark instance
+	*/
+	function benchmark( b ) {
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			sdiff( N, k, x, 1, N1, p, 1, N2, a, 1, o, 1, w, 1 );
+			if ( isnan( o[ i%ol ] ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnan( o[ i%ol ] ) ) {
+			b.fail( 'should not return NaN' );
+		}
+		b.pass( 'benchmark finished' );
+		b.end();
+	}
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+	var len;
+	var min;
+	var max;
+	var f;
+	var i;
+
+	min = 1; // 10^min
+	max = 6; // 10^max
+
+	for ( i = min; i <= max; i++ ) {
+		len = pow( 10, i );
+		f = createBenchmark( len );
+		bench( format( '%s:len=%d', pkg, len ), f );
+	}
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..e4df3440af8c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.native.js
@@ -0,0 +1,129 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float32Array = require( '@stdlib/array/float32' );
+var format = require( '@stdlib/string/format' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'float32'
+};
+var sdiff = tryRequire( resolve( __dirname, './../lib/sdiff.native.js' ) );
+var opts = {
+	'skip': ( sdiff instanceof Error )
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var ol;
+	var N1;
+	var N2;
+	var x;
+	var p;
+	var a;
+	var w;
+	var o;
+	var k;
+	var N;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	k = 1; // worst case: N + N1 + N2 - 1
+	ol = N + N1 + N2 - k;
+
+	x = uniform( N, -100, 100, options );
+	p = uniform( N1, -100, 100, options );
+	a = uniform( N2, -100, 100, options );
+	w = new Float32Array( N+N1+N2-1 );
+	o = new Float32Array( ol );
+	return benchmark;
+
+	/**
+	* Benchmark function.
+	*
+	* @private
+	* @param {Benchmark} b - benchmark instance
+	*/
+	function benchmark( b ) {
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			sdiff( N, k, x, 1, N1, p, 1, N2, a, 1, o, 1, w, 1 );
+			if ( isnan( o[ i%ol ] ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnan( o[ i%ol ] ) ) {
+			b.fail( 'should not return NaN' );
+		}
+		b.pass( 'benchmark finished' );
+		b.end();
+	}
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+	var len;
+	var min;
+	var max;
+	var f;
+	var i;
+
+	min = 1; // 10^min
+	max = 6; // 10^max
+
+	for ( i = min; i <= max; i++ ) {
+		len = pow( 10, i );
+		f = createBenchmark( len );
+		bench( format( '%s::native:len=%d', pkg, len ), opts, f );
+	}
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..a308547d5137
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.js
@@ -0,0 +1,124 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float32Array = require( '@stdlib/array/float32' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var sdiff = require( './../lib/ndarray.js' );
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'float32'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var ol;
+	var N1;
+	var N2;
+	var x;
+	var p;
+	var a;
+	var w;
+	var o;
+	var k;
+	var N;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	k = 1; // worst case: N + N1 + N2 - 1
+	ol = N + N1 + N2 - k;
+
+	x = uniform( N, -100, 100, options );
+	p = uniform( N1, -100, 100, options );
+	a = uniform( N2, -100, 100, options );
+	w = new Float32Array( N+N1+N2-1 );
+	o = new Float32Array( ol );
+	return benchmark;
+
+	/**
+	* Benchmark function.
+	*
+	* @private
+	* @param {Benchmark} b - benchmark instance
+	*/
+	function benchmark( b ) {
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			sdiff( N, k, x, 1, 0, N1, p, 1, 0, N2, a, 1, 0, o, 1, 0, w, 1, 0 );
+			if ( isnan( o[ i%ol ] ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnan( o[ i%ol ] ) ) {
+			b.fail( 'should not return NaN' );
+		}
+		b.pass( 'benchmark finished' );
+		b.end();
+	}
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+	var len;
+	var min;
+	var max;
+	var f;
+	var i;
+
+	min = 1; // 10^min
+	max = 6; // 10^max
+
+	for ( i = min; i <= max; i++ ) {
+		len = pow( 10, i );
+		f = createBenchmark( len );
+		bench( format( '%s:ndarray:len=%d', pkg, len ), f );
+	}
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.native.js
new file mode 100644
index 000000000000..ac03c4d98d29
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.native.js
@@ -0,0 +1,129 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float32Array = require( '@stdlib/array/float32' );
+var format = require( '@stdlib/string/format' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'float32'
+};
+var sdiff = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+	'skip': ( sdiff instanceof Error )
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var ol;
+	var N1;
+	var N2;
+	var x;
+	var p;
+	var a;
+	var w;
+	var o;
+	var k;
+	var N;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	k = 1; // worst case: N + N1 + N2 - 1
+	ol = N + N1 + N2 - k;
+
+	x = uniform( N, -100, 100, options );
+	p = uniform( N1, -100, 100, options );
+	a = uniform( N2, -100, 100, options );
+	w = new Float32Array( N+N1+N2-1 );
+	o = new Float32Array( ol );
+	return benchmark;
+
+	/**
+	* Benchmark function.
+	*
+	* @private
+	* @param {Benchmark} b - benchmark instance
+	*/
+	function benchmark( b ) {
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			sdiff( N, k, x, 1, 0, N1, p, 1, 0, N2, a, 1, 0, o, 1, 0, w, 1, 0 );
+			if ( isnan( o[ i%ol ] ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnan( o[ i%ol ] ) ) {
+			b.fail( 'should not return NaN' );
+		}
+		b.pass( 'benchmark finished' );
+		b.end();
+	}
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+	var len;
+	var min;
+	var max;
+	var f;
+	var i;
+
+	min = 1; // 10^min
+	max = 6; // 10^max
+
+	for ( i = min; i <= max; i++ ) {
+		len = pow( 10, i );
+		f = createBenchmark( len );
+		bench( format( '%s::native:ndarray:len=%d', pkg, len ), opts, f );
+	}
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/Makefile
new file mode 100644
index 000000000000..7280962b4c4d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2020 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+	QUIET := @
+else
+	QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+	OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+	CC := $(C_COMPILER)
+else
+	CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+	-std=c99 \
+	-O3 \
+	-Wall \
+	-pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+	fPIC ?=
+else
+	fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := benchmark.length.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+	$(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled benchmarks.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+	$(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+	$(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/benchmark.length.c
new file mode 100644
index 000000000000..ca14bf52618d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/benchmark.length.c
@@ -0,0 +1,273 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/sdiff.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <time.h>
+#include <sys/time.h>
+
+#define NAME "sdiff"
+#define ITERATIONS 1000000
+#define REPEATS 3
+#define MIN 1
+#define MAX 6
+
+/**
+* Prints the TAP version.
+*/
+static void print_version( void ) {
+	printf( "TAP version 13\n" );
+}
+
+/**
+* Prints the TAP summary.
+*
+* @param total     total number of tests
+* @param passing   total number of passing tests
+*/
+static void print_summary( int total, int passing ) {
+	printf( "#\n" );
+	printf( "1..%d\n", total ); // TAP plan
+	printf( "# total %d\n", total );
+	printf( "# pass  %d\n", passing );
+	printf( "#\n" );
+	printf( "# ok\n" );
+}
+
+/**
+* Prints benchmarks results.
+*
+* @param iterations  number of iterations
+* @param elapsed     elapsed time in seconds
+*/
+static void print_results( int iterations, double elapsed ) {
+	double rate = (double)iterations / elapsed;
+	printf( "  ---\n" );
+	printf( "  iterations: %d\n", iterations );
+	printf( "  elapsed: %0.9f\n", elapsed );
+	printf( "  rate: %0.9f\n", rate );
+	printf( "  ...\n" );
+}
+
+/**
+* Returns a clock time.
+*
+* @return clock time
+*/
+static double tic( void ) {
+	struct timeval now;
+	gettimeofday( &now, NULL );
+	return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
+}
+
+/**
+* Generates a random number on the interval [0,1).
+*
+* @return random number
+*/
+static float rand_float( void ) {
+	int r = rand();
+	return (float)r / ( (float)RAND_MAX + 1.0f );
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations   number of iterations
+* @param len          array length
+* @return             elapsed time in seconds
+*/
+static double benchmark1( int iterations, int len ) {
+	double elapsed;
+	float *x;
+	float *p;
+	float *a;
+	float *o;
+	float *w;
+	double t;
+	int wl;
+	int ol;
+	int N1;
+	int N2;
+	int k;
+	int N;
+	int i;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	k = 1; // worst case: N + N1 + N2 - 1
+	ol = N + N1 + N2 - k;
+	wl = N + N1 + N2 - 1;
+
+	x = (float *) malloc( N * sizeof( float ) );
+	for ( i = 0; i < N; i++ ) {
+		x[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+	}
+
+	p = (float *) malloc( N1 * sizeof( float ) );
+	a = (float *) malloc( N2 * sizeof( float ) );
+	for ( i = 0; i < N1; i++ ) {
+		p[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+		a[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+	}
+
+	w = (float *) malloc( wl * sizeof( float ) );
+	for ( i = 0; i < wl; i++ ) {
+		w[ i ] = 0.0f;
+	}
+
+	o = (float *) malloc( ol * sizeof( float ) );
+	for ( i = 0; i < ol; i++ ) {
+		o[ i ] = 0.0f;
+	}
+
+	t = tic();
+	for ( i = 0; i < iterations; i++ ) {
+		stdlib_strided_sdiff( N, k, x, 1, N1, p, 1, N2, a, 1, o, 1, w, 1 );
+		if ( o[ 0 ] != o[ 0 ] ) {
+			printf( "should not return NaN\n" );
+			break;
+		}
+	}
+	elapsed = tic() - t;
+	if ( o[ ol-1 ] != o[ ol-1 ] ) {
+		printf( "should not return NaN\n" );
+	}
+	free( x );
+	free( p );
+	free( a );
+	free( w );
+	free( o );
+	return elapsed;
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations   number of iterations
+* @param len          array length
+* @return             elapsed time in seconds
+*/
+static double benchmark2( int iterations, int len ) {
+	double elapsed;
+	float *x;
+	float *p;
+	float *a;
+	float *o;
+	float *w;
+	double t;
+	int wl;
+	int ol;
+	int N1;
+	int N2;
+	int k;
+	int N;
+	int i;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	k = 1; // worst case: N + N1 + N2 - 1
+	ol = N + N1 + N2 - k;
+	wl = N + N1 + N2 - 1;
+
+	x = (float *) malloc( N * sizeof( float ) );
+	for ( i = 0; i < N; i++ ) {
+		x[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+	}
+
+	p = (float *) malloc( N1 * sizeof( float ) );
+	a = (float *) malloc( N2 * sizeof( float ) );
+	for ( i = 0; i < N1; i++ ) {
+		p[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+		a[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+	}
+
+	w = (float *) malloc( wl * sizeof( float ) );
+	for ( i = 0; i < wl; i++ ) {
+		w[ i ] = 0.0f;
+	}
+
+	o = (float *) malloc( ol * sizeof( float ) );
+	for ( i = 0; i < ol; i++ ) {
+		o[ i ] = 0.0f;
+	}
+
+	t = tic();
+	for ( i = 0; i < iterations; i++ ) {
+		stdlib_strided_sdiff_ndarray( N, k, x, 1, 0, N1, p, 1, 0, N2, a, 1, 0, o, 1, 0, w, 1, 0 );
+		if ( o[ 0 ] != o[ 0 ] ) {
+			printf( "should not return NaN\n" );
+			break;
+		}
+	}
+	elapsed = tic() - t;
+	if ( o[ ol-1 ] != o[ ol-1 ] ) {
+		printf( "should not return NaN\n" );
+	}
+	free( x );
+	free( p );
+	free( a );
+	free( w );
+	free( o );
+	return elapsed;
+}
+
+/**
+* Main execution sequence.
+*/
+int main( void ) {
+	double elapsed;
+	int count;
+	int iter;
+	int len;
+	int i;
+	int j;
+
+	// Use the current time to seed the random number generator:
+	srand( time( NULL ) );
+
+	print_version();
+	count = 0;
+	for ( i = MIN; i <= MAX; i++ ) {
+		len = pow( 10, i );
+		iter = ITERATIONS / pow( 10, i-1 );
+		for ( j = 0; j < REPEATS; j++ ) {
+			count += 1;
+			printf( "# c::%s:len=%d\n", NAME, len );
+			elapsed = benchmark1( iter, len );
+			print_results( iter, elapsed );
+			printf( "ok %d benchmark finished\n", count );
+		}
+	}
+	for ( i = MIN; i <= MAX; i++ ) {
+		len = pow( 10, i );
+		iter = ITERATIONS / pow( 10, i-1 );
+		for ( j = 0; j < REPEATS; j++ ) {
+			count += 1;
+			printf( "# c::%s:ndarray:len=%d\n", NAME, len );
+			elapsed = benchmark2( iter, len );
+			print_results( iter, elapsed );
+			printf( "ok %d benchmark finished\n", count );
+		}
+	}
+	print_summary( count, count );
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/binding.gyp b/lib/node_modules/@stdlib/blas/ext/base/sdiff/binding.gyp
new file mode 100644
index 000000000000..60dce9d0b31a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/binding.gyp
@@ -0,0 +1,265 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A `.gyp` file for building a Node.js native add-on.
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+  # List of files to include in this file:
+  'includes': [
+    './include.gypi',
+  ],
+
+  # Define variables to be used throughout the configuration for all targets:
+  'variables': {
+    # Target name should match the add-on export name:
+    'addon_target_name%': 'addon',
+
+    # Fortran compiler (to override -Dfortran_compiler=<compiler>):
+    'fortran_compiler%': 'gfortran',
+
+    # Fortran compiler flags:
+    'fflags': [
+      # Specify the Fortran standard to which a program is expected to conform:
+      '-std=f95',
+
+      # Indicate that the layout is free-form source code:
+      '-ffree-form',
+
+      # Aggressive optimization:
+      '-O3',
+
+      # Enable commonly used warning options:
+      '-Wall',
+
+      # Warn if source code contains problematic language features:
+      '-Wextra',
+
+      # Warn if a procedure is called without an explicit interface:
+      '-Wimplicit-interface',
+
+      # Do not transform names of entities specified in Fortran source files by appending underscores (i.e., don't mangle names, thus allowing easier usage in C wrappers):
+      '-fno-underscoring',
+
+      # Warn if source code contains Fortran 95 extensions and C-language constructs:
+      '-pedantic',
+
+      # Compile but do not link (output is an object file):
+      '-c',
+    ],
+
+    # Set variables based on the host OS:
+    'conditions': [
+      [
+        'OS=="win"',
+        {
+          # Define the object file suffix:
+          'obj': 'obj',
+        },
+        {
+          # Define the object file suffix:
+          'obj': 'o',
+        }
+      ], # end condition (OS=="win")
+    ], # end conditions
+  }, # end variables
+
+  # Define compile targets:
+  'targets': [
+
+    # Target to generate an add-on:
+    {
+      # The target name should match the add-on export name:
+      'target_name': '<(addon_target_name)',
+
+      # Define dependencies:
+      'dependencies': [],
+
+      # Define directories which contain relevant include headers:
+      'include_dirs': [
+        # Local include directory:
+        '<@(include_dirs)',
+      ],
+
+      # List of source files:
+      'sources': [
+        '<@(src_files)',
+      ],
+
+      # Settings which should be applied when a target's object files are used as linker input:
+      'link_settings': {
+        # Define libraries:
+        'libraries': [
+          '<@(libraries)',
+        ],
+
+        # Define library directories:
+        'library_dirs': [
+          '<@(library_dirs)',
+        ],
+      },
+
+      # C/C++ compiler flags:
+      'cflags': [
+        # Enable commonly used warning options:
+        '-Wall',
+
+        # Aggressive optimization:
+        '-O3',
+      ],
+
+      # C specific compiler flags:
+      'cflags_c': [
+        # Specify the C standard to which a program is expected to conform:
+        '-std=c99',
+      ],
+
+      # C++ specific compiler flags:
+      'cflags_cpp': [
+        # Specify the C++ standard to which a program is expected to conform:
+        '-std=c++11',
+      ],
+
+      # Linker flags:
+      'ldflags': [],
+
+      # Apply conditions based on the host OS:
+      'conditions': [
+        [
+          'OS=="mac"',
+          {
+            # Linker flags:
+            'ldflags': [
+              '-undefined dynamic_lookup',
+              '-Wl,-no-pie',
+              '-Wl,-search_paths_first',
+            ],
+          },
+        ], # end condition (OS=="mac")
+        [
+          'OS!="win"',
+          {
+            # C/C++ flags:
+            'cflags': [
+              # Generate platform-independent code:
+              '-fPIC',
+            ],
+          },
+        ], # end condition (OS!="win")
+      ], # end conditions
+
+      # Define custom build actions for particular inputs:
+      'rules': [
+        {
+          # Define a rule for processing Fortran files:
+          'extension': 'f',
+
+          # Define the pathnames to be used as inputs when performing processing:
+          'inputs': [
+            # Full path of the current input:
+            '<(RULE_INPUT_PATH)'
+          ],
+
+          # Define the outputs produced during processing:
+          'outputs': [
+            # Store an output object file in a directory for placing intermediate results (only accessible within a single target):
+            '<(INTERMEDIATE_DIR)/<(RULE_INPUT_ROOT).<(obj)'
+          ],
+
+          # Define the rule for compiling Fortran based on the host OS:
+          'conditions': [
+            [
+              'OS=="win"',
+
+              # Rule to compile Fortran on Windows:
+              {
+                'rule_name': 'compile_fortran_windows',
+                'message': 'Compiling Fortran file <(RULE_INPUT_PATH) on Windows...',
+
+                'process_outputs_as_sources': 0,
+
+                # Define the command-line invocation:
+                'action': [
+                  '<(fortran_compiler)',
+                  '<@(fflags)',
+                  '<@(_inputs)',
+                  '-o',
+                  '<@(_outputs)',
+                ],
+              },
+
+              # Rule to compile Fortran on non-Windows:
+              {
+                'rule_name': 'compile_fortran_linux',
+                'message': 'Compiling Fortran file <(RULE_INPUT_PATH) on Linux...',
+
+                'process_outputs_as_sources': 1,
+
+                # Define the command-line invocation:
+                'action': [
+                  '<(fortran_compiler)',
+                  '<@(fflags)',
+                  '-fPIC', # generate platform-independent code
+                  '<@(_inputs)',
+                  '-o',
+                  '<@(_outputs)',
+                ],
+              }
+            ], # end condition (OS=="win")
+          ], # end conditions
+        }, # end rule (extension=="f")
+      ], # end rules
+    }, # end target <(addon_target_name)
+
+    # Target to copy a generated add-on to a standard location:
+    {
+      'target_name': 'copy_addon',
+
+      # Declare that the output of this target is not linked:
+      'type': 'none',
+
+      # Define dependencies:
+      'dependencies': [
+        # Require that the add-on be generated before building this target:
+        '<(addon_target_name)',
+      ],
+
+      # Define a list of actions:
+      'actions': [
+        {
+          'action_name': 'copy_addon',
+          'message': 'Copying addon...',
+
+          # Explicitly list the inputs in the command-line invocation below:
+          'inputs': [],
+
+          # Declare the expected outputs:
+          'outputs': [
+            '<(addon_output_dir)/<(addon_target_name).node',
+          ],
+
+          # Define the command-line invocation:
+          'action': [
+            'cp',
+            '<(PRODUCT_DIR)/<(addon_target_name).node',
+            '<(addon_output_dir)/<(addon_target_name).node',
+          ],
+        },
+      ], # end actions
+    }, # end target copy_addon
+  ], # end targets
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/repl.txt
new file mode 100644
index 000000000000..2a828d16994e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/repl.txt
@@ -0,0 +1,187 @@
+
+{{alias}}( N, k, x,sx, N1,p,sp, N2,a,sa, out,so, w,sw )
+    Calculates the k-th discrete forward differences of a single-precision
+    floating-point strided array.
+
+    The `N` and stride parameters determine which elements in the strided arrays
+    are accessed at runtime.
+
+    Indexing is relative to the first index. To introduce an offset, use a typed
+    array view.
+
+    If `N <= 0`, the function returns the output array unchanged.
+
+    Parameters
+    ----------
+    N: integer
+        Number of indexed elements.
+
+    k: integer
+        Number of times to recursively compute differences.
+
+    x: Float32Array
+        Input array.
+
+    sx: integer
+        Stride length for `x`.
+
+    N1: integer
+        Number of elements to `prepend`.
+
+    p: Float32Array
+        Array containing values to prepend prior to computing differences.
+
+    sp: integer
+        Stride length for `prepend`.
+
+    N2: integer
+        Number of elements to `append`.
+
+    a: Float32Array
+        Array containing values to append prior to computing differences.
+
+    sa: integer
+        Stride length for `append`.
+
+    out: Float32Array
+        Output array.
+
+    so: integer
+        Stride length for `out`.
+
+    w: Float32Array
+        Workspace array.
+
+    sw: integer
+        Stride length for `workspace`.
+
+    Returns
+    -------
+    out: Float32Array
+        Output array.
+
+    Examples
+    --------
+    // Standard Usage:
+    > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 2.0 ] );
+    > var p = new {{alias:@stdlib/array/float32}}( [ 0.0 ] );
+    > var a = new {{alias:@stdlib/array/float32}}( [ 3.0 ] );
+    > var out = new {{alias:@stdlib/array/float32}}( 4 );
+    > var w = new {{alias:@stdlib/array/float32}}( 4 );
+    > {{alias}}( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 )
+    <Float32Array>[ 1.0, -3.0, 4.0, 1.0 ]
+
+    // Using `N` and stride parameters:
+    > x = new {{alias:@stdlib/array/float32}}( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+    > p = new {{alias:@stdlib/array/float32}}( [ 1.0 ] );
+    > a = new {{alias:@stdlib/array/float32}}( [ 11.0 ] );
+    > var out = new {{alias:@stdlib/array/float32}}( 4 );
+    > var w = new {{alias:@stdlib/array/float32}}( 4 );
+    > {{alias}}( 3, 1, x, 2, 1, p, 1, 1, a, 1, out, 1, w, 1 )
+    <Float32Array>[ 1.0, 4.0, 4.0, 1.0 ]
+
+    // Using view offsets:
+    > var x0 = new {{alias:@stdlib/array/float32}}( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+    > var x1 = new {{alias:@stdlib/array/float32}}( x0.buffer, x0.BYTES_PER_ELEMENT*1 );
+    > p = new {{alias:@stdlib/array/float32}}( [ 1.0 ] );
+    > a = new {{alias:@stdlib/array/float32}}( [ 11.0 ] );
+    > var out = new {{alias:@stdlib/array/float32}}( 5 );
+    > var w = new {{alias:@stdlib/array/float32}}( 5 );
+    > {{alias}}( x1.length, 1, x1, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 )
+    <Float32Array>[ 3.0, 2.0, 2.0, 2.0, 1.0 ]
+
+
+{{alias}}.ndarray( N, k, X,sx,ox, N1,p,sp,op, N2,a,sa,oa, Out,so,oo, W,sw,ow )
+    Calculates the k-th discrete forward differences of a single-precision
+    floating-point strided array using alternative indexing semantics.
+
+    While typed array views mandate a view offset based on the underlying
+    buffer, the offset parameters support indexing semantics based on starting
+    indices.
+
+    Parameters
+    ----------
+    N: integer
+        Number of indexed elements.
+
+    k: integer
+        Number of times to recursively compute differences.
+
+    X: Float32Array
+        Input array.
+
+    sx: integer
+        Stride length for `x`.
+
+    ox: integer
+        Starting index for `x`.
+
+    N1: integer
+        Number of elements to `prepend`.
+
+    p: Float32Array
+        Array containing values to prepend prior to computing differences.
+
+    sp: integer
+        Stride length for `prepend`.
+
+    op: integer
+        Starting index for `prepend`.
+
+    N2: integer
+        Number of elements to `append`.
+
+    a: Float32Array
+        Array containing values to append prior to computing differences.
+
+    sa: integer
+        Stride length for `append`.
+
+    oa: integer
+        Starting index for `append`.
+
+    Out: Float32Array
+        Output array.
+
+    so: integer
+        Stride length for `out`.
+
+    oo: integer
+        Starting index for `out`.
+
+    W: Float32Array
+        Workspace array.
+
+    sw: integer
+        Stride length for `workspace`.
+
+    ow: integer
+        Starting index for `workspace`.
+
+    Returns
+    -------
+    out: Float32Array
+        Output array.
+
+    Examples
+    --------
+    // Standard Usage:
+    > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 2.0 ] );
+    > var p = new {{alias:@stdlib/array/float32}}( [ 0.0 ] );
+    > var a = new {{alias:@stdlib/array/float32}}( [ 3.0 ] );
+    > var out = new {{alias:@stdlib/array/float32}}( 4 );
+    > var w = new {{alias:@stdlib/array/float32}}( 4 );
+    > {{alias}}.ndarray( 3, 1, x,1,0, 1, p,1,0, 1, a,1,0, out,1,0, w,1,0 )
+    <Float32Array>[ 1.0, -3.0, 4.0, 1.0 ]
+
+    // Advanced indexing:
+    > x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 2.0 ] );
+    > p = new {{alias:@stdlib/array/float32}}( [ 0.0 ] );
+    > a = new {{alias:@stdlib/array/float32}}( [ 3.0 ] );
+    > out = new {{alias:@stdlib/array/float32}}( 3 );
+    > w = new {{alias:@stdlib/array/float32}}( 3 );
+    > {{alias}}.ndarray( 2, 1, x,1,1, 1, p,1,0, 1, a,1,0, out,1,0, w,1,0 )
+    <Float32Array>[ -2.0, 4.0, 1.0 ]
+
+    See Also
+    --------
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/index.d.ts
new file mode 100644
index 000000000000..158d19b6d8b3
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/index.d.ts
@@ -0,0 +1,153 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Interface describing `sdiff`.
+*/
+interface Routine {
+	/**
+	* Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
+	*
+	* @param N - number of indexed elements
+	* @param k - number of times to recursively compute differences
+	* @param x - input array
+	* @param strideX - stride length for `x`
+	* @param N1 - number of indexed elements of prepend
+	* @param prepend - prepend array
+	* @param strideP - stride length for `prepend`
+	* @param N2 - number of indexed elements of append
+	* @param append - append array
+	* @param strideA - stride length for `append`
+	* @param out - output array
+	* @param strideOut - stride length for `out`
+	* @param workspace - workspace array
+	* @param strideW - stride length for `workspace`
+	* @returns output array
+	*
+	* @example
+	* var Float32Array = require( '@stdlib/array/float32' );
+	*
+	* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+	* var p = new Float32Array( [ 1.0 ] );
+	* var a = new Float32Array( [ 22.0 ] );
+	* var out = new Float32Array( 5 );
+	* var w = new Float32Array( 6 );
+	*
+	* sdiff( x.length, 2, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+	*
+	* console.log( out );
+	* // out => <Float32Array>[ 1.0, 1.0, 1.0, 1.0, 1.0 ]
+	*/
+	( N: number, k: number, x: Float32Array, strideX: number, N1: number, prepend: Float32Array, strideP: number, N2: number, append: Float32Array, strideA: number, out: Float32Array, strideOut: number, workspace: Float32Array, strideW: number ): Float32Array;
+
+	/**
+	* Calculates the k-th discrete forward difference of a single-precision floating-point strided array using alternative indexing semantics.
+	*
+	* @param N - number of indexed elements
+	* @param k - number of times to recursively compute differences
+	* @param x - input array
+	* @param strideX - stride length for `x`
+	* @param offsetX - starting index for `x`
+	* @param N1 - number of indexed elements of prepend
+	* @param prepend - prepend array
+	* @param strideP - stride length for `prepend`
+	* @param offsetP - starting index for `prepend`
+	* @param N2 - number of indexed elements of append
+	* @param append - append array
+	* @param strideA - stride length for `append`
+	* @param offsetA - starting index for `append`
+	* @param out - output array
+	* @param strideOut - stride length for `out`
+	* @param offsetOut - starting index for `out`
+	* @param workspace - workspace array
+	* @param strideW - stride length for `workspace`
+	* @param offsetW - starting index for `workspace`
+	* @returns output array
+	*
+	* @example
+	* var Float32Array = require( '@stdlib/array/float32' );
+	*
+	* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+	* var p = new Float32Array( [ 1.0 ] );
+	* var a = new Float32Array( [ 22.0 ] );
+	* var out = new Float32Array( 5 );
+	* var w = new Float32Array( 6 );
+	*
+	* sdiff.ndarray( x.length, 2, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+	*
+	* console.log( out );
+	* // out => <Float32Array>[ 1.0, 1.0, 1.0, 1.0, 1.0 ]
+	*/
+	ndarray( N: number, k: number, x: Float32Array, strideX: number, offsetX: number, N1: number, prepend: Float32Array, strideP: number, offsetP: number, N2: number, append: Float32Array, strideA: number, offsetA: number, out: Float32Array, strideOut: number, offsetOut: number, workspace: Float32Array, strideW: number, offsetW: number ): Float32Array;
+}
+
+/**
+* Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
+*
+* @param N - number of indexed elements
+* @param k - number of times to recursively compute differences
+* @param x - input array
+* @param strideX - stride length for `x`
+* @param N1 - number of indexed elements of prepend
+* @param prepend - prepend array
+* @param strideP - stride length for `prepend`
+* @param N2 - number of indexed elements of append
+* @param append - append array
+* @param strideA - stride length for `append`
+* @param out - output array
+* @param strideOut - stride length for `out`
+* @param workspace - workspace array
+* @param strideW - stride length for `workspace`
+* @returns output array
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 5 );
+* var w = new Float32Array( 6 );
+*
+* sdiff( x.length, 2, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 1.0, 1.0, 1.0, 1.0 ]
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 5 );
+* var w = new Float32Array( 6 );
+*
+* sdiff.ndarray( x.length, 2, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 1.0, 1.0, 1.0, 1.0 ]
+*/
+declare var sdiff: Routine;
+
+
+// EXPORTS //
+
+export = sdiff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/test.ts
new file mode 100644
index 000000000000..daafa1cd28eb
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/test.ts
@@ -0,0 +1,681 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import sdiff = require( './index' );
+
+
+// TESTS //
+
+// The function returns a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectType Float32Array
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( '10', 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( true, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( false, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( null, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( undefined, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( [], 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( {}, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( ( x: number ): number => x, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, '10', x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, true, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, false, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, null, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, undefined, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, [], x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, {}, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, ( x: number ): number => x, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a Float32Array...
+{
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( 10, 1, '10', 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( 10, 1, true, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( 10, 1, false, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( 10, 1, null, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( 10, 1, undefined, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( 10, 1, [], 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( 10, 1, {}, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( 10, 1, ( x: number ): number => x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, 1, x, '10', 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, true, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, false, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, null, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, undefined, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, [], 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, {}, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, ( x: number ): number => x, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, 1, x, 1, '10', p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, true, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, false, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, null, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, undefined, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, [], p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, {}, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, ( x: number ): number => x, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a sixth argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, 1, x, 1, 1, '10', 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, true, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, false, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, null, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, undefined, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, [], 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, {}, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, ( x: number ): number => x, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a seventh argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, 1, x, 1, 1, p, '10', 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, true, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, false, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, null, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, undefined, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, [], 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, {}, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, ( x: number ): number => x, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eighth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, 1, x, 1, 1, p, 1, '10', a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, true, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, false, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, null, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, undefined, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, [], a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, {}, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, ( x: number ): number => x, a, 1, out, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a ninth argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, '10', 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, true, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, false, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, null, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, undefined, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, [], 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, {}, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, ( x: number ): number => x, 1, out, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a tenth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, '10', out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, true, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, false, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, null, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, undefined, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, [], out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, {}, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, ( x: number ): number => x, out, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eleventh argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, '10', 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, true, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, false, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, null, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, undefined, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, [], 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, {}, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, ( x: number ): number => x, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a twelfth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, '10', w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, true, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, false, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, null, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, undefined, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, [], w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, {}, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, ( x: number ): number => x, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a thirteenth argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, '10', 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, true, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, false, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, null, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, undefined, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, [], 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, {}, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, ( x: number ): number => x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourteenth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, '10' ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, true ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, false ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, null ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, undefined ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, [] ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, {} ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff(); // $ExpectError
+	sdiff( x.length ); // $ExpectError
+	sdiff( x.length, 1 ); // $ExpectError
+	sdiff( x.length, 1, x ); // $ExpectError
+	sdiff( x.length, 1, x, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w ); // $ExpectError
+}
+
+// Attached to main export is an `ndarray` method which returns a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectType Float32Array
+}
+
+// The compiler throws an error if the `ndarray` method is provided a first argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( '10', 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( true, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( false, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( null, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( undefined, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( [], 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( {}, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( ( x: number ): number => x, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, '10', x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, true, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, false, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, null, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, undefined, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, [], x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, {}, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, ( x: number ): number => x, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a third argument which is not a Float32Array...
+{
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( 10, 1, '10', 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( 10, 1, true, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( 10, 1, false, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( 10, 1, null, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( 10, 1, undefined, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( 10, 1, [], 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( 10, 1, {}, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( 10, 1, ( x: number ): number => x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, '10', 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, true, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, false, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, null, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, undefined, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, [], 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, {}, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, ( x: number ): number => x, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fifth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, '10', 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, true, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, false, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, null, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, undefined, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, [], 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, {}, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, ( x: number ): number => x, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a sixth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, '10', p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, true, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, false, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, null, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, undefined, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, [], p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, {}, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, ( x: number ): number => x, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a seventh argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, '10', 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, true, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, false, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, null, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, undefined, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, [], 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, {}, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, ( x: number ): number => x, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eighth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, '10', 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, true, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, false, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, null, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, undefined, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, [], 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, {}, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, ( x: number ): number => x, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a ninth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, '10', 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, true, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, false, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, null, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, undefined, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, [], 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, {}, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, ( x: number ): number => x, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a tenth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, '10', a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, true, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, false, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, null, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, undefined, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, [], a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, {}, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, ( x: number ): number => x, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eleventh argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, '10', 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, true, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, false, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, null, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, undefined, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, [], 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, {}, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, ( x: number ): number => x, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a twelfth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, '10', 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, true, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, false, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, null, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, undefined, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, [], 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, {}, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, ( x: number ): number => x, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a thirteenth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, '10', out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, true, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, false, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, null, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, undefined, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, [], out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, {}, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, ( x: number ): number => x, out, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fourteenth argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, '10', 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, true, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, false, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, null, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, undefined, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, [], 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, {}, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, ( x: number ): number => x, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fifteenth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, '10', 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, true, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, false, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, null, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, undefined, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, [], 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, {}, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, ( x: number ): number => x, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a sixteenth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, '10', w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, true, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, false, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, null, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, undefined, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, [], w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, {}, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, ( x: number ): number => x, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a seventeenth argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, '10', 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, true, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, false, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, null, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, undefined, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, [], 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, {}, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, ( x: number ): number => x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eighteenth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, '10', 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, true, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, false, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, null, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, undefined, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, [], 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, {}, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, ( x: number ): number => x, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a nineteenth argument which is not a number...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, '10' ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, true ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, false ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, null ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, undefined ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, [] ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, {} ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+	const w = new Float32Array( 11 );
+
+	sdiff.ndarray(); // $ExpectError
+	sdiff.ndarray( x.length ); // $ExpectError
+	sdiff.ndarray( x.length, 1 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/Makefile
new file mode 100644
index 000000000000..ff5293d3059f
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2020 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+	QUIET := @
+else
+	QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+	OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+	CC := $(C_COMPILER)
+else
+	CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+	-std=c99 \
+	-O3 \
+	-Wall \
+	-pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+	fPIC ?=
+else
+	fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := example.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+	$(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled examples.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+	$(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+	$(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/example.c b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/example.c
new file mode 100644
index 000000000000..0a17b25467ee
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/example.c
@@ -0,0 +1,45 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/sdiff.h"
+#include <stdio.h>
+
+int main( void ) {
+	// Create a strided array:
+	const float x[] = { 1.0f, -2.0f, 3.0f, -4.0f, 5.0f, -6.0f, 7.0f, -8.0f };
+
+	// Define prepend values:
+	const float p[] = { -1.0f };
+
+	// Define append values:
+	const float a[] = { 10.0f };
+
+	// Define output array:
+	float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+	// Define workspace:
+	float w[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+	// Compute forward differences:
+	stdlib_strided_sdiff( 8, 3, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	// Print the result:
+	for ( int i = 0; i < 7; i++ ) {
+		printf( "out[ %i ] = %f\n", i, out[ i ] );
+	}
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/index.js
new file mode 100644
index 000000000000..c4e79b629048
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/index.js
@@ -0,0 +1,45 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var Float32Array = require( '@stdlib/array/float32' );
+var sdiff = require( './../lib' );
+
+var x = discreteUniform( 10, -100, 100, {
+	'dtype': 'float32'
+});
+console.log( 'Input array: ', x );
+
+var p = discreteUniform( 2, -100, 100, {
+	'dtype': 'float32'
+});
+console.log( 'Prepend array: ', p );
+
+var a = discreteUniform( 2, -100, 100, {
+	'dtype': 'float32'
+});
+console.log( 'Append array: ', a );
+
+var out = new Float32Array( 10 );
+
+var w = new Float32Array( 13 );
+
+sdiff( x.length, 4, x, 1, 2, p, 1, 2, a, 1, out, 1, w, 1 );
+console.log( 'Output', out );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/include.gypi b/lib/node_modules/@stdlib/blas/ext/base/sdiff/include.gypi
new file mode 100644
index 000000000000..dcb556d250e8
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/include.gypi
@@ -0,0 +1,70 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A GYP include file for building a Node.js native add-on.
+#
+# Note that nesting variables is required due to how GYP processes a configuration. Any variables defined within a nested 'variables' section is defined in the outer scope. Thus, conditions in the outer variable scope are free to use these variables without running into "variable undefined" errors.
+#
+# Main documentation:
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+#
+# Variable nesting hacks:
+#
+# [3]: https://chromium.googlesource.com/external/skia/gyp/+/master/common_variables.gypi
+# [4]: https://src.chromium.org/viewvc/chrome/trunk/src/build/common.gypi?revision=127004
+{
+  # Define variables to be used throughout the configuration for all targets:
+  'variables': {
+    'variables': {
+      # Host BLAS library (to override -Dblas=<blas>):
+      'blas%': '',
+
+      # Path to BLAS library (to override -Dblas_dir=<path>):
+      'blas_dir%': '',
+    }, # end variables
+
+    # Source directory:
+    'src_dir': './src',
+
+    # Include directories:
+    'include_dirs': [
+      '<@(blas_dir)',
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{\'os\':\'<(OS)\',\'blas\':\'<(blas)\'},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).include; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+
+    # Add-on destination directory:
+    'addon_output_dir': './src',
+
+    # Source files:
+    'src_files': [
+      '<(src_dir)/addon.c',
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{\'os\':\'<(OS)\',\'blas\':\'<(blas)\'},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).src; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+
+    # Library dependencies:
+    'libraries': [
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{\'os\':\'<(OS)\',\'blas\':\'<(blas)\'},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).libraries; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+
+    # Library directories:
+    'library_dirs': [
+      '<@(blas_dir)',
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{\'os\':\'<(OS)\',\'blas\':\'<(blas)\'},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).libpath; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+  }, # end variables
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/include/stdlib/blas/ext/base/sdiff.h b/lib/node_modules/@stdlib/blas/ext/base/sdiff/include/stdlib/blas/ext/base/sdiff.h
new file mode 100644
index 000000000000..aad3cf66869a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/include/stdlib/blas/ext/base/sdiff.h
@@ -0,0 +1,46 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#ifndef STDLIB_BLAS_EXT_BASE_SDIFF_H
+#define STDLIB_BLAS_EXT_BASE_SDIFF_H
+
+#include "stdlib/blas/base/shared.h"
+
+/*
+* If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler.
+*/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+* Calculates the k-th discrete forward differences of a single-precision floating-point strided array.
+*/
+void API_SUFFIX(stdlib_strided_sdiff)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, float *Out, const CBLAS_INT strideOut, float *Workspace, const CBLAS_INT strideW );
+
+/**
+* Calculates the k-th discrete forward differences of a single-precision floating-point strided array using alternative indexing semantics.
+*/
+void API_SUFFIX(stdlib_strided_sdiff_ndarray)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut, float *Workspace, const CBLAS_INT strideW, const CBLAS_INT offsetW );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !STDLIB_BLAS_EXT_BASE_SDIFF_H
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/index.js
new file mode 100644
index 000000000000..26e69a838cda
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/index.js
@@ -0,0 +1,80 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Calculate the k-th discrete forward difference of a single-precision floating-point strided array.
+*
+* @module @stdlib/blas/ext/base/sdiff
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+* var sdiff = require( '@stdlib/blas/ext/base/sdiff' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 5 );
+* var w = new Float32Array( 6 );
+*
+* sdiff( x.length, 2, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 1.0, 1.0, 1.0, 1.0 ]
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+* var sdiff = require( '@stdlib/blas/ext/base/sdiff' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 5 );
+* var w = new Float32Array( 6 );
+*
+* sdiff.ndarray( x.length, 2, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 1.0, 1.0, 1.0, 1.0 ]
+*/
+
+// MODULES //
+
+var join = require( 'path' ).join;
+var tryRequire = require( '@stdlib/utils/try-require' );
+var isError = require( '@stdlib/assert/is-error' );
+var main = require( './main.js' );
+
+
+// MAIN //
+
+var sdiff;
+var tmp = tryRequire( join( __dirname, './native.js' ) );
+if ( isError( tmp ) ) {
+	sdiff = main;
+} else {
+	sdiff = tmp;
+}
+
+
+// EXPORTS //
+
+module.exports = sdiff;
+
+// exports: { "ndarray": "sdiff.ndarray" }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/main.js
new file mode 100644
index 000000000000..96560206424c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/main.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var sdiff = require( './sdiff.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( sdiff, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = sdiff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/native.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/native.js
new file mode 100644
index 000000000000..aea31a58b03b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/native.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var sdiff = require( './sdiff.native.js' );
+var ndarray = require( './ndarray.native.js' );
+
+
+// MAIN //
+
+setReadOnly( sdiff, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = sdiff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.js
new file mode 100644
index 000000000000..dd4fbf154b3c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.js
@@ -0,0 +1,248 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-params, max-len */
+
+'use strict';
+
+// MODULES //
+
+var scopy = require( '@stdlib/blas/base/scopy' );
+
+
+// FUNCTIONS //
+
+/**
+* Calculates the forward difference of a single-precision floating-point strided array using alternative indexing semantics.
+*
+* @private
+* @param {PositiveInteger} N - number of indexed elements
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {PositiveInteger} offsetX - starting index for `x`
+* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {Float32Array} prepend - prepend array
+* @param {integer} strideP - stride length for `prepend`
+* @param {PositiveInteger} offsetP - starting index for `prepend`
+* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {Float32Array} append - append array
+* @param {integer} strideA - stride length for `append`
+* @param {PositiveInteger} offsetA - starting index for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {PositiveInteger} offsetOut - starting index for `out`
+* @returns {Float32Array} output array
+*/
+function base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut ) {
+	var total;
+	var prev;
+	var curr;
+	var ix;
+	var io;
+	var ip;
+	var ia;
+	var i;
+
+	total = N + N1 + N2;
+	if ( total <= 1 ) {
+		return out;
+	}
+
+	if ( N1 === 0 && N2 === 0 ) {
+		ix = offsetX;
+		io = offsetOut;
+		prev = x[ ix ];
+		for ( i = 1; i < N; i++ ) {
+			ix += strideX;
+			curr = x[ ix ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+		return out;
+	}
+
+	// Prepend
+	if ( N1 > 0 ) {
+		io = offsetOut;
+		ip = offsetP;
+		prev = prepend[ ip ];
+		for ( i = 1; i < N1; i++ ) {
+			ip += strideP;
+			curr = prepend[ ip ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+		if ( N > 0 ) {
+			curr = x[ offsetX ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		} else if ( N2 > 0 ) {
+			curr = append[ offsetA ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+	} else if ( N > 0 ) {
+		prev = x[ offsetX ];
+		io = offsetOut;
+	} else {
+		prev = append[ offsetA ];
+		io = offsetOut;
+	}
+
+	// x
+	if ( N > 0 ) {
+		ix = offsetX;
+		if ( N1 === 0 ) {
+			prev = x[ ix ];
+			ix += strideX;
+			for ( i = 1; i < N; i++ ) {
+				curr = x[ ix ];
+				out[ io ] = curr - prev;
+				prev = curr;
+				io += strideOut;
+				ix += strideX;
+			}
+		} else {
+			ix += strideX;
+			for ( i = 1; i < N; i++ ) {
+				curr = x[ ix ];
+				out[ io ] = curr - prev;
+				prev = curr;
+				io += strideOut;
+				ix += strideX;
+			}
+		}
+		if ( N2 > 0 ) {
+			curr = append[ offsetA ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+	}
+
+	// Append
+	if ( N2 > 0 ) {
+		ia = offsetA + strideA;
+		for ( i = 1; i < N2; i++ ) {
+			curr = append[ ia ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+			ia += strideA;
+		}
+	}
+	return out;
+}
+
+
+// MAIN //
+
+/**
+* Calculates the k-th discrete forward difference of a single-precision floating-point strided array using alternative indexing semantics.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {PositiveInteger} k - number of times to recursively compute differences
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {PositiveInteger} offsetX - starting index for `x`
+* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {Float32Array} prepend - prepend array
+* @param {integer} strideP - stride length for `prepend`
+* @param {PositiveInteger} offsetP - starting index for `prepend`
+* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {Float32Array} append - append array
+* @param {integer} strideA - stride length for `append`
+* @param {PositiveInteger} offsetA - starting index for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {PositiveInteger} offsetOut - starting index for `out`
+* @param {Float32Array} workspace - workspace array
+* @param {integer} strideW - stride length for `workspace`
+* @param {PositiveInteger} offsetW - starting index for `workspace`
+* @returns {Float32Array} output array
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 5 );
+* var w = new Float32Array( 6 );
+*
+* sdiff( x.length, 2, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 1.0, 1.0, 1.0, 1.0 ]
+*/
+function sdiff( N, k, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut, workspace, strideW, offsetW ) {
+	var total;
+	var io;
+	var n;
+	var i;
+
+	total = N + N1 + N2;
+	if ( total <= 1 ) {
+		return out;
+	}
+
+	// If k >= total number of elements, the k-th forward difference results in an empty array, so this function is a no-op.
+	if ( k >= total ) {
+		return out;
+	}
+
+	if ( k === 0 ) {
+		// Copy `prepend` into output array:
+		scopy.ndarray( N1, prepend, strideP, offsetP, out, strideOut, offsetOut );
+
+		// Copy `x` into output array:
+		io = offsetOut + ( N1 * strideOut );
+		scopy.ndarray( N, x, strideX, offsetX, out, strideOut, io );
+
+		// Copy `append` into output array:
+		io = offsetOut + ( ( N1 + N ) * strideOut );
+		scopy.ndarray( N2, append, strideA, offsetA, out, strideOut, io );
+
+		return out;
+	}
+
+	if ( k === 1 ) {
+		base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut );
+		return out;
+	}
+
+	base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, workspace, strideW, offsetW );
+
+	n = total - 1;
+	for ( i = 1; i < k - 1; i++ ) {
+		base( n, workspace, strideW, offsetW, 0, prepend, strideP, offsetP, 0, append, strideA, offsetA, workspace, strideW, offsetW );
+		n -= 1;
+	}
+
+	base( n, workspace, strideW, offsetW, 0, prepend, strideP, offsetP, 0, append, strideA, offsetA, out, strideOut, offsetOut );
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sdiff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.native.js
new file mode 100644
index 000000000000..113c33ce6552
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.native.js
@@ -0,0 +1,76 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-params, max-len */
+
+'use strict';
+
+// MODULES //
+
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {PositiveInteger} k - number of times to recursively compute differences
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {PositiveInteger} offsetX - starting index for `x`
+* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {Float32Array} prepend - prepend array
+* @param {integer} strideP - stride length for `prepend`
+* @param {PositiveInteger} offsetP - starting index for `prepend`
+* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {Float32Array} append - append array
+* @param {integer} strideA - stride length for `append`
+* @param {PositiveInteger} offsetA - starting index for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {PositiveInteger} offsetOut - starting index for `out`
+* @param {Float32Array} workspace - workspace array
+* @param {integer} strideW - stride length for `workspace`
+* @param {PositiveInteger} offsetW - starting index for `workspace`
+* @returns {Float32Array} output array
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 5 );
+* var w = new Float32Array( 6 );
+*
+* sdiff( x.length, 2, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 1.0, 1.0, 1.0, 1.0 ]
+*/
+function sdiff( N, k, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut, workspace, strideW, offsetW ) {
+	addon.ndarray( N, k, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut, workspace, strideW, offsetW );
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sdiff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.js
new file mode 100644
index 000000000000..2792282d0f0f
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.js
@@ -0,0 +1,77 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-params, max-len */
+
+'use strict';
+
+// MODULES //
+
+var stride2offset = require( '@stdlib/strided/base/stride2offset' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+/**
+* Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {PositiveInteger} k - number of times to recursively compute differences
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {Float32Array} prepend - prepend array
+* @param {integer} strideP - stride length for `prepend`
+* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {Float32Array} append - append array
+* @param {integer} strideA - stride length for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {Float32Array} workspace - workspace array
+* @param {integer} strideW - stride length for `workspace`
+* @returns {Float32Array} output array
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 5 );
+* var w = new Float32Array( 6 );
+*
+* sdiff( x.length, 2, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 1.0, 1.0, 1.0, 1.0 ]
+*/
+function sdiff( N, k, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut, workspace, strideW ) {
+	var ox = stride2offset( N, strideX );
+	var op = stride2offset( N1, strideP );
+	var oa = stride2offset( N2, strideA );
+	var oo = stride2offset( N + N1 + N2 - k, strideOut );
+	var ow = stride2offset( N + N1 + N2 - 1, strideW );
+	ndarray( N, k, x, strideX, ox, N1, prepend, strideP, op, N2, append, strideA, oa, out, strideOut, oo, workspace, strideW, ow );
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sdiff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.native.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.native.js
new file mode 100644
index 000000000000..cb70f8cf692c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.native.js
@@ -0,0 +1,71 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-params, max-len */
+
+'use strict';
+
+// MODULES //
+
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {PositiveInteger} k - number of times to recursively compute differences
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {Float32Array} prepend - prepend array
+* @param {integer} strideP - stride length for `prepend`
+* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {Float32Array} append - append array
+* @param {integer} strideA - stride length for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {Float32Array} workspace - workspace array
+* @param {integer} strideW - stride length for `workspace`
+* @returns {Float32Array} output array
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 5 );
+* var w = new Float32Array( 6 );
+*
+* sdiff( x.length, 2, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 1.0, 1.0, 1.0, 1.0 ]
+*/
+function sdiff( N, k, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut, workspace, strideW ) {
+	addon( N, k, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut, workspace, strideW );
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sdiff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/manifest.json b/lib/node_modules/@stdlib/blas/ext/base/sdiff/manifest.json
new file mode 100644
index 000000000000..f9ac5c23cdb0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/manifest.json
@@ -0,0 +1,81 @@
+{
+  "options": {
+    "task": "build"
+  },
+  "fields": [
+    {
+      "field": "src",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "include",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "libraries",
+      "resolve": false,
+      "relative": false
+    },
+    {
+      "field": "libpath",
+      "resolve": true,
+      "relative": false
+    }
+  ],
+  "confs": [
+    {
+      "task": "build",
+      "src": [
+        "./src/main.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/blas/base/shared",
+        "@stdlib/strided/base/stride2offset",
+        "@stdlib/blas/base/scopy",
+        "@stdlib/napi/export",
+        "@stdlib/napi/argv",
+        "@stdlib/napi/argv-int64",
+        "@stdlib/napi/argv-strided-float32array"
+      ]
+    },
+    {
+      "task": "benchmark",
+      "src": [
+        "./src/main.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/blas/base/shared",
+        "@stdlib/strided/base/stride2offset",
+        "@stdlib/blas/base/scopy"
+      ]
+    },
+    {
+      "task": "examples",
+      "src": [
+        "./src/main.c"
+      ],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": [
+        "@stdlib/blas/base/shared",
+        "@stdlib/strided/base/stride2offset",
+        "@stdlib/blas/base/scopy"
+      ]
+    }
+  ]
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/package.json b/lib/node_modules/@stdlib/blas/ext/base/sdiff/package.json
new file mode 100644
index 000000000000..7de10049bfe3
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/package.json
@@ -0,0 +1,74 @@
+{
+  "name": "@stdlib/blas/ext/base/sdiff",
+  "version": "0.0.0",
+  "description": "Calculate the k-th discrete forward difference of a single-precision floating-point strided array.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "browser": "./lib/main.js",
+  "gypfile": true,
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "include": "./include",
+    "lib": "./lib",
+    "src": "./src",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "stdmath",
+    "mathematics",
+    "math",
+    "blas",
+    "extended",
+    "diff",
+    "difference",
+    "gradient",
+    "strided",
+    "array",
+    "float32",
+    "float",
+    "float32array"
+  ],
+  "__stdlib__": {
+    "wasm": false
+  }
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/Makefile
new file mode 100644
index 000000000000..2caf905cedbe
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/Makefile
@@ -0,0 +1,70 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+	QUIET := @
+else
+	QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+	OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+	OS := WINNT
+endif
+endif
+endif
+endif
+
+
+# RULES #
+
+#/
+# Removes generated files for building an add-on.
+#
+# @example
+# make clean-addon
+#/
+clean-addon:
+	$(QUIET) -rm -f *.o *.node
+
+.PHONY: clean-addon
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean: clean-addon
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/addon.c b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/addon.c
new file mode 100644
index 000000000000..029243979ddb
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/addon.c
@@ -0,0 +1,86 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/sdiff.h"
+#include "stdlib/blas/base/shared.h"
+#include "stdlib/napi/export.h"
+#include "stdlib/napi/argv.h"
+#include "stdlib/napi/argv_int64.h"
+#include "stdlib/napi/argv_strided_float32array.h"
+#include <node_api.h>
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env    environment under which the function is invoked
+* @param info   callback data
+* @return       Node-API value
+*/
+static napi_value addon( napi_env env, napi_callback_info info ) {
+	STDLIB_NAPI_ARGV( env, info, argv, argc, 14 );
+	STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+	STDLIB_NAPI_ARGV_INT64( env, k, argv, 1 );
+	STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 );
+	STDLIB_NAPI_ARGV_INT64( env, N1, argv, 4 );
+	STDLIB_NAPI_ARGV_INT64( env, strideP, argv, 6 );
+	STDLIB_NAPI_ARGV_INT64( env, N2, argv, 7 );
+	STDLIB_NAPI_ARGV_INT64( env, strideA, argv, 9 );
+	STDLIB_NAPI_ARGV_INT64( env, strideOut, argv, 11 );
+	STDLIB_NAPI_ARGV_INT64( env, strideW, argv, 13 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 5 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 8 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, out, N+N1+N2-k, strideOut, argv, 10 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, workspace, N+N1+N2-1, strideW, argv, 12 );
+	API_SUFFIX(stdlib_strided_sdiff)( N, k, X, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut, workspace, strideW );
+	return NULL;
+}
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env    environment under which the function is invoked
+* @param info   callback data
+* @return       Node-API value
+*/
+static napi_value addon_method( napi_env env, napi_callback_info info ) {
+	STDLIB_NAPI_ARGV( env, info, argv, argc, 19 );
+	STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+	STDLIB_NAPI_ARGV_INT64( env, k, argv, 1 );
+	STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 );
+	STDLIB_NAPI_ARGV_INT64( env, offsetX, argv, 4 );
+	STDLIB_NAPI_ARGV_INT64( env, N1, argv, 5 );
+	STDLIB_NAPI_ARGV_INT64( env, strideP, argv, 7 );
+	STDLIB_NAPI_ARGV_INT64( env, offsetP, argv, 8 );
+	STDLIB_NAPI_ARGV_INT64( env, N2, argv, 9 );
+	STDLIB_NAPI_ARGV_INT64( env, strideA, argv, 11 );
+	STDLIB_NAPI_ARGV_INT64( env, offsetA, argv, 12 );
+	STDLIB_NAPI_ARGV_INT64( env, strideOut, argv, 14 );
+	STDLIB_NAPI_ARGV_INT64( env, offsetOut, argv, 15 );
+	STDLIB_NAPI_ARGV_INT64( env, strideW, argv, 17 );
+	STDLIB_NAPI_ARGV_INT64( env, offsetW, argv, 18 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 6 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 10 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, out, N+N1+N2-k, strideOut, argv, 13 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, workspace, N+N1+N2-1, strideW, argv, 16 );
+	API_SUFFIX(stdlib_strided_sdiff_ndarray)( N, k, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut, workspace, strideW, offsetW );
+	return NULL;
+}
+
+STDLIB_NAPI_MODULE_EXPORT_FCN_WITH_METHOD( addon, "ndarray", addon_method )
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/main.c
new file mode 100644
index 000000000000..e8d1563cc528
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/main.c
@@ -0,0 +1,235 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/sdiff.h"
+#include "stdlib/blas/base/shared.h"
+#include "stdlib/strided/base/stride2offset.h"
+#include "stdlib/blas/base/scopy.h"
+
+/**
+* Calculates the k-th discrete forward differences of a single-precision floating-point strided array.
+*
+* @param N         number of indexed elements
+* @param k         number of times to recursively compute differences
+* @param X         input array
+* @param strideX   stride length for X
+* @param N1        number of indexed elements of prepend
+* @param prepend   prepend array
+* @param strideP   stride length for prepend
+* @param N2        number of indexed elements of append
+* @param append    append array
+* @param strideA   stride length for append
+* @param out       output array
+* @param strideOut stride length for out
+* @param Workspace workspace array
+* @param strideW   stride length for workspace
+*/
+void API_SUFFIX(stdlib_strided_sdiff)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, float *out, const CBLAS_INT strideOut, float *Workspace, const CBLAS_INT strideW ) {
+	CBLAS_INT ox = stdlib_strided_stride2offset( N, strideX );
+	CBLAS_INT op = stdlib_strided_stride2offset( N1, strideP );
+	CBLAS_INT oa = stdlib_strided_stride2offset( N2, strideA );
+	CBLAS_INT oo = stdlib_strided_stride2offset( N+N1+N2-k, strideOut );
+	CBLAS_INT ow = stdlib_strided_stride2offset( N+N1+N2-1, strideW );
+	API_SUFFIX(stdlib_strided_sdiff_ndarray)( N, k, X, strideX, ox, N1, prepend, strideP, op, N2, append, strideA, oa, out, strideOut, oo, Workspace, strideW, ow );
+}
+
+/**
+* Calculates the forward difference of a single-precision floating-point strided array using alternative indexing semantics.
+*
+* @param N        number of indexed elements
+* @param X        input array
+* @param strideX  stride length for X
+* @param offsetX  starting index for X
+* @param N1       number of indexed elements of prepend
+* @param prepend  prepend array
+* @param strideP  stride length for prepend
+* @param offsetP  starting index for prepend
+* @param N2       number of indexed elements of append
+* @param append   append array
+* @param strideA  stride length for append
+* @param offsetA  starting index for append
+* @param out      output array
+* @param strideOut stride length for out
+* @param offsetOut starting index for out
+*/
+static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut ) {
+	CBLAS_INT total;
+	CBLAS_INT ix;
+	CBLAS_INT io;
+	CBLAS_INT ip;
+	CBLAS_INT ia;
+	CBLAS_INT i;
+	float prev;
+	float curr;
+
+	total = N + N1 + N2;
+	if ( total <= 1 ) {
+		return;
+	}
+
+	if ( N1 == 0 && N2 == 0 ) {
+		ix = offsetX;
+		io = offsetOut;
+		prev = X[ ix ];
+		for ( i = 1; i < N; i++ ) {
+			ix += strideX;
+			curr = X[ ix ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+		return;
+	}
+
+	// Prepend
+	if ( N1 > 0 ) {
+		io = offsetOut;
+		ip = offsetP;
+		prev = prepend[ ip ];
+		for ( i = 1; i < N1; i++ ) {
+			ip += strideP;
+			curr = prepend[ ip ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+		if ( N > 0 ) {
+			curr = X[ offsetX ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		} else if ( N2 > 0 ) {
+			curr = append[ offsetA ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+	} else if ( N > 0 ) {
+		prev = X[ offsetX ];
+		io = offsetOut;
+	} else {
+		prev = append[ offsetA ];
+		io = offsetOut;
+	}
+
+	// X
+	if ( N > 0 ) {
+		ix = offsetX;
+		if ( N1 == 0 ) {
+			prev = X[ ix ];
+			ix += strideX;
+			for ( i = 1; i < N; i++ ) {
+				curr = X[ ix ];
+				out[ io ] = curr - prev;
+				prev = curr;
+				io += strideOut;
+				ix += strideX;
+			}
+		} else {
+			ix += strideX;
+			for ( i = 1; i < N; i++ ) {
+				curr = X[ ix ];
+				out[ io ] = curr - prev;
+				prev = curr;
+				io += strideOut;
+				ix += strideX;
+			}
+		}
+		if ( N2 > 0 ) {
+			curr = append[ offsetA ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+	}
+
+	// Append
+	if ( N2 > 0 ) {
+		ia = offsetA + strideA;
+		for ( i = 1; i < N2; i++ ) {
+			curr = append[ ia ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+			ia += strideA;
+		}
+	}
+}
+
+/**
+* Calculates the k-th discrete forward differences of a single-precision floating-point strided array using alternative indexing semantics.
+*
+* @param N         number of indexed elements
+* @param k         number of times to recursively compute differences
+* @param X         input array
+* @param strideX   stride length for X
+* @param offsetX   starting index for X
+* @param N1        number of indexed elements of prepend
+* @param prepend   prepend array
+* @param strideP   stride length for prepend
+* @param offsetP   starting index for prepend
+* @param N2        number of indexed elements of append
+* @param append    append array
+* @param strideA   stride length for append
+* @param offsetA   starting index for append
+* @param out       output array
+* @param strideOut stride length for out
+* @param offsetOut starting index for out
+* @param Workspace workspace array
+* @param strideW   stride length for workspace
+* @param offsetW   starting index for workspace
+*/
+void API_SUFFIX(stdlib_strided_sdiff_ndarray)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut, float *Workspace, const CBLAS_INT strideW, const CBLAS_INT offsetW ) {
+	CBLAS_INT total;
+	CBLAS_INT io;
+	CBLAS_INT n;
+	CBLAS_INT i;
+
+	total = N + N1 + N2;
+	if ( total <= 1 ) {
+		return;
+	}
+	if ( k >= total ) {
+		return;
+	}
+	if ( k == 0 ) {
+		// Copy `prepend` into output array:
+		c_scopy_ndarray( N1, prepend, strideP, offsetP, out, strideOut, offsetOut );
+
+		// Copy `X` into output array:
+		io = offsetOut + ( N1 * strideOut );
+		c_scopy_ndarray( N, X, strideX, offsetX, out, strideOut, io );
+
+		// Copy `append` into output array:
+		io = offsetOut + ( ( N1 + N ) * strideOut );
+		c_scopy_ndarray( N2, append, strideA, offsetA, out, strideOut, io );
+		return;
+	}
+	if ( k == 1 ) {
+		stdlib_strided_base_sdiff_ndarray( N, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut );
+		return;
+	}
+	stdlib_strided_base_sdiff_ndarray( N, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, Workspace, strideW, offsetW );
+
+	n = total - 1;
+	for ( i = 1; i < k - 1; i++ ) {
+		stdlib_strided_base_sdiff_ndarray( n, Workspace, strideW, offsetW, 0, prepend, strideP, offsetP, 0, append, strideA, offsetA, Workspace, strideW, offsetW );
+		n -= 1;
+	}
+	stdlib_strided_base_sdiff_ndarray( n, Workspace, strideW, offsetW, 0, prepend, strideP, offsetP, 0, append, strideA, offsetA, out, strideOut, offsetOut );
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.js
new file mode 100644
index 000000000000..2baa802ca7f0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.js
@@ -0,0 +1,38 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var sdiff = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof sdiff, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'attached to the main export is an `ndarray` method', function test( t ) {
+	t.strictEqual( typeof sdiff.ndarray, 'function', 'has method' );
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.ndarray.js
new file mode 100644
index 000000000000..4b47fab22dbd
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.ndarray.js
@@ -0,0 +1,302 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var sdiff = require( './../lib/ndarray.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof sdiff, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function calculates the first forward difference', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 6 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 2.0, 2.0, 2.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function calculates higher-order forward differences', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Second forward difference (k=2):
+	x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 22.0 ] );
+	out = new Float32Array( 5 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 2, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 1.0, 1.0, 1.0, 1.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Third forward difference (k=3):
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0, 15.0, 21.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 5 );
+
+	sdiff( x.length, 3, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports k=0 (copies input)', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 2.0, 4.0, 6.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 7.0 ] );
+	out = new Float32Array( 5 );
+	w = new Float32Array( 4 );
+
+	sdiff( x.length, 0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 4.0, 6.0, 7.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function returns the output array unchanged for trivial cases', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// N <= 0:
+	x = new Float32Array( [ 2.0, 4.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0, 0.0 ] );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 0.0, 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Single element (total <= 1 in base):
+	x = new Float32Array( [ 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0 ] );
+	w = new Float32Array( 1 );
+
+	sdiff( 1, 1, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	x = new Float32Array( [ 1.0, 2.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0 ] );
+	w = new Float32Array( 1 );
+
+	sdiff( x.length, 5, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports no prepend and no append', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 3 );
+
+	sdiff( x.length, 1, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 2.0, 3.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports strides and offsets', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Offset for `x`:
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 4 );
+	w = new Float32Array( 4 );
+
+	sdiff( 3, 1, x, 1, 2, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 5.0, 2.0, 2.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Negative strides:
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 6 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 1, x, -1, 4, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 9.0, -2.0, -2.0, -2.0, -2.0, 9.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Strided access (stride=2):
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 4 );
+	w = new Float32Array( 4 );
+
+	sdiff( 3, 1, x, 2, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 1.0, 4.0, 4.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports multiple prepend and append values', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Multiple prepend (N1=2), no append:
+	x = new Float32Array( [ 6.0, 8.0 ] );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 3 );
+
+	sdiff( x.length, 1, x, 1, 0, 2, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 2.0, 3.0, 2.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Multiple prepend (N1=2) and append (N2=1), no x:
+	x = new Float32Array( 0 );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( [ 7.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 0, 2, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 2.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Prepend (N1=1), x, and multiple append (N2=2):
+	x = new Float32Array( [ 2.0, 4.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 6.0, 10.0 ] );
+	out = new Float32Array( 4 );
+	w = new Float32Array( 4 );
+
+	sdiff( x.length, 1, x, 1, 0, 1, p, 1, 0, 2, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 2.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports append without prepend', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// No prepend, x present, single append:
+	x = new Float32Array( [ 2.0, 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 10.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( x.length, 1, x, 1, 0, 0, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 3.0, 5.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// No prepend, no x, only append (N2=3):
+	x = new Float32Array( 0 );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 1.0, 4.0, 9.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 0, 0, p, 1, 0, 3, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 3.0, 5.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.ndarray.native.js
new file mode 100644
index 000000000000..b63122560dfb
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.ndarray.native.js
@@ -0,0 +1,310 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var sdiff = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+	'skip': ( sdiff instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof sdiff, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function calculates the first forward difference', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 6 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 2.0, 2.0, 2.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function calculates higher-order forward differences', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Second forward difference (k=2):
+	x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 22.0 ] );
+	out = new Float32Array( 5 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 2, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 1.0, 1.0, 1.0, 1.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Third forward difference (k=3):
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0, 15.0, 21.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 5 );
+
+	sdiff( x.length, 3, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports k=0 (copies input)', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 2.0, 4.0, 6.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 7.0 ] );
+	out = new Float32Array( 5 );
+	w = new Float32Array( 4 );
+
+	sdiff( x.length, 0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 4.0, 6.0, 7.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function returns the output array unchanged for trivial cases', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// N <= 0:
+	x = new Float32Array( [ 2.0, 4.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0, 0.0 ] );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 0.0, 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	x = new Float32Array( [ 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0 ] );
+	w = new Float32Array( 1 );
+
+	sdiff( 1, 1, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	x = new Float32Array( [ 1.0, 2.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0 ] );
+	w = new Float32Array( 1 );
+
+	sdiff( x.length, 5, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports no prepend and no append', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 3 );
+
+	sdiff( x.length, 1, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 2.0, 3.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports strides and offsets', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Offset for `x`:
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 4 );
+	w = new Float32Array( 4 );
+
+	sdiff( 3, 1, x, 1, 2, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 5.0, 2.0, 2.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Negative strides:
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 6 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 1, x, -1, 4, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 9.0, -2.0, -2.0, -2.0, -2.0, 9.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Strided access (stride=2):
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 4 );
+	w = new Float32Array( 4 );
+
+	sdiff( 3, 1, x, 2, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 1.0, 4.0, 4.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports multiple prepend and append values', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Multiple prepend (N1=2), no append:
+	x = new Float32Array( [ 6.0, 8.0 ] );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 3 );
+
+	sdiff( x.length, 1, x, 1, 0, 2, p, 1, 0, 0, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 2.0, 3.0, 2.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Multiple prepend (N1=2) and append (N2=1), no x:
+	x = new Float32Array( 0 );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( [ 7.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 0, 2, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 2.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Prepend (N1=1), x, and multiple append (N2=2):
+	x = new Float32Array( [ 2.0, 4.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 6.0, 10.0 ] );
+	out = new Float32Array( 4 );
+	w = new Float32Array( 4 );
+
+	sdiff( x.length, 1, x, 1, 0, 1, p, 1, 0, 2, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 2.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports append without prepend', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// No prepend, x present, single append:
+	x = new Float32Array( [ 2.0, 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 10.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( x.length, 1, x, 1, 0, 0, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 3.0, 5.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// No prepend, no x, only append (N2=3):
+	x = new Float32Array( 0 );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 1.0, 4.0, 9.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 0, 0, p, 1, 0, 3, a, 1, 0, out, 1, 0, w, 1, 0 );
+
+	expected = new Float32Array( [ 3.0, 5.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.sdiff.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.sdiff.js
new file mode 100644
index 000000000000..5369f57f22b1
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.sdiff.js
@@ -0,0 +1,289 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var sdiff = require( './../lib/sdiff.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof sdiff, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function calculates the first forward difference', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 6 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 2.0, 2.0, 2.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function calculates higher-order forward differences', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Second forward difference (k=2):
+	x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 22.0 ] );
+	out = new Float32Array( 5 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 2, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 1.0, 1.0, 1.0, 1.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Third forward difference (k=3):
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0, 15.0, 21.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 5 );
+
+	sdiff( x.length, 3, x, 1, 0, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports k=0 (copies input)', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 2.0, 4.0, 6.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 7.0 ] );
+	out = new Float32Array( 5 );
+	w = new Float32Array( 4 );
+
+	sdiff( x.length, 0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 4.0, 6.0, 7.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function returns the output array unchanged for trivial cases', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// N <= 0:
+	x = new Float32Array( [ 2.0, 4.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0, 0.0 ] );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 0, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 0.0, 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	x = new Float32Array( [ 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0 ] );
+	w = new Float32Array( 1 );
+
+	sdiff( 1, 1, x, 1, 0, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	x = new Float32Array( [ 1.0, 2.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0 ] );
+	w = new Float32Array( 1 );
+
+	sdiff( x.length, 5, x, 1, 0, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports no prepend and no append', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 3 );
+
+	sdiff( x.length, 1, x, 1, 0, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 2.0, 3.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports strides', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Negative strides:
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 6 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 1, x, -1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 9.0, -2.0, -2.0, -2.0, -2.0, 9.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Strided access (stride=2):
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 4 );
+	w = new Float32Array( 4 );
+
+	sdiff( 3, 1, x, 2, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 1.0, 4.0, 4.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports multiple prepend and append values', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Multiple prepend (N1=2), no append:
+	x = new Float32Array( [ 6.0, 8.0 ] );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 3 );
+
+	sdiff( x.length, 1, x, 1, 2, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 2.0, 3.0, 2.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Multiple prepend (N1=2) and append (N2=1), no x:
+	x = new Float32Array( 0 );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( [ 7.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 2, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 2.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Prepend (N1=1), x, and multiple append (N2=2):
+	x = new Float32Array( [ 2.0, 4.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 6.0, 10.0 ] );
+	out = new Float32Array( 4 );
+	w = new Float32Array( 4 );
+
+	sdiff( x.length, 1, x, 1, 1, p, 1, 2, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 2.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports append without prepend', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// No prepend, x present, single append:
+	x = new Float32Array( [ 2.0, 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 10.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( x.length, 1, x, 1, 0, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 3.0, 5.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// No prepend, no x, only append (N2=3):
+	x = new Float32Array( 0 );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 1.0, 4.0, 9.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 0, p, 1, 3, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 3.0, 5.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.sdiff.native.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.sdiff.native.js
new file mode 100644
index 000000000000..d3c2f1209076
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.sdiff.native.js
@@ -0,0 +1,298 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var sdiff = tryRequire( resolve( __dirname, './../lib/sdiff.native.js' ) );
+var opts = {
+	'skip': ( sdiff instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof sdiff, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function calculates the first forward difference', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 6 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 2.0, 2.0, 2.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function calculates higher-order forward differences', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Second forward difference (k=2):
+	x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 22.0 ] );
+	out = new Float32Array( 5 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 2, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 1.0, 1.0, 1.0, 1.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Third forward difference (k=3):
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0, 15.0, 21.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 5 );
+
+	sdiff( x.length, 3, x, 1, 0, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 0.0, 0.0, 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports k=0 (copies input)', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 2.0, 4.0, 6.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 7.0 ] );
+	out = new Float32Array( 5 );
+	w = new Float32Array( 4 );
+
+	sdiff( x.length, 0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 4.0, 6.0, 7.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function returns the output array unchanged for trivial cases', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// N <= 0:
+	x = new Float32Array( [ 2.0, 4.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0, 0.0 ] );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 0, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 0.0, 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	x = new Float32Array( [ 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0 ] );
+	w = new Float32Array( 1 );
+
+	sdiff( 1, 1, x, 1, 0, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	x = new Float32Array( [ 1.0, 2.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( [ 0.0 ] );
+	w = new Float32Array( 1 );
+
+	sdiff( x.length, 5, x, 1, 0, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 0.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports no prepend and no append', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 3 );
+
+	sdiff( x.length, 1, x, 1, 0, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 2.0, 3.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports strides', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Negative strides:
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 6 );
+	w = new Float32Array( 6 );
+
+	sdiff( x.length, 1, x, -1, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 9.0, -2.0, -2.0, -2.0, -2.0, 9.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Strided access (stride=2):
+	x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 11.0 ] );
+	out = new Float32Array( 4 );
+	w = new Float32Array( 4 );
+
+	sdiff( 3, 1, x, 2, 1, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 1.0, 4.0, 4.0, 1.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports multiple prepend and append values', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// Multiple prepend (N1=2), no append:
+	x = new Float32Array( [ 6.0, 8.0 ] );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( 0 );
+	out = new Float32Array( 3 );
+	w = new Float32Array( 3 );
+
+	sdiff( x.length, 1, x, 1, 2, p, 1, 0, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 2.0, 3.0, 2.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Multiple prepend (N1=2) and append (N2=1), no x:
+	x = new Float32Array( 0 );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( [ 7.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 2, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 2.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// Prepend (N1=1), x, and multiple append (N2=2):
+	x = new Float32Array( [ 2.0, 4.0 ] );
+	p = new Float32Array( [ 1.0 ] );
+	a = new Float32Array( [ 6.0, 10.0 ] );
+	out = new Float32Array( 4 );
+	w = new Float32Array( 4 );
+
+	sdiff( x.length, 1, x, 1, 1, p, 1, 2, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 1.0, 2.0, 2.0, 4.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports append without prepend', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var w;
+
+	// No prepend, x present, single append:
+	x = new Float32Array( [ 2.0, 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 10.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( x.length, 1, x, 1, 0, p, 1, 1, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 3.0, 5.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+
+	// No prepend, no x, only append (N2=3):
+	x = new Float32Array( 0 );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 1.0, 4.0, 9.0 ] );
+	out = new Float32Array( 2 );
+	w = new Float32Array( 2 );
+
+	sdiff( 0, 1, x, 1, 0, p, 1, 3, a, 1, out, 1, w, 1 );
+
+	expected = new Float32Array( [ 3.0, 5.0 ] );
+	t.deepEqual( out, expected, 'returns expected value' );
+	t.end();
+});

From cf8ca6bd09602a99a61ce2dc72b43aef0cfabaad Mon Sep 17 00:00:00 2001
From: Muhammad Haris <101793258+headlessNode@users.noreply.github.com>
Date: Thu, 12 Mar 2026 23:47:28 +0500
Subject: [PATCH 2/6] docs: apply suggestion from code review

Signed-off-by: Muhammad Haris <101793258+headlessNode@users.noreply.github.com>
---
 .../@stdlib/blas/ext/base/sdiff/benchmark/c/Makefile            | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/Makefile
index 7280962b4c4d..0756dc7da20a 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/Makefile
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/Makefile
@@ -1,7 +1,7 @@
 #/
 # @license Apache-2.0
 #
-# Copyright (c) 2020 The Stdlib Authors.
+# Copyright (c) 2026 The Stdlib Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

From f32d2922376f7c0e78ed02ace632cbef96ef030d Mon Sep 17 00:00:00 2001
From: Muhammad Haris <101793258+headlessNode@users.noreply.github.com>
Date: Thu, 12 Mar 2026 23:47:57 +0500
Subject: [PATCH 3/6] docs: apply suggestion from code review

Signed-off-by: Muhammad Haris <101793258+headlessNode@users.noreply.github.com>
---
 .../@stdlib/blas/ext/base/sdiff/examples/c/Makefile             | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/Makefile
index ff5293d3059f..c8f8e9a1517b 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/Makefile
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/Makefile
@@ -1,7 +1,7 @@
 #/
 # @license Apache-2.0
 #
-# Copyright (c) 2020 The Stdlib Authors.
+# Copyright (c) 2026 The Stdlib Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

From b353b7d20e20832b58040320ce313cbb85332769 Mon Sep 17 00:00:00 2001
From: headlessNode <harriskhan047@outlook.com>
Date: Fri, 13 Mar 2026 00:03:49 +0500
Subject: [PATCH 4/6] fix: apply suggestions from code review

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: missing_dependencies
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: passed
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---
---
 .../@stdlib/blas/ext/base/sdiff/src/addon.c   | 12 ++--
 .../@stdlib/blas/ext/base/sdiff/src/main.c    | 66 +++++++++----------
 2 files changed, 39 insertions(+), 39 deletions(-)

diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/addon.c b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/addon.c
index 029243979ddb..2b7f1dee233e 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/addon.c
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/addon.c
@@ -45,9 +45,9 @@ static napi_value addon( napi_env env, napi_callback_info info ) {
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 5 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 8 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, out, N+N1+N2-k, strideOut, argv, 10 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, workspace, N+N1+N2-1, strideW, argv, 12 );
-	API_SUFFIX(stdlib_strided_sdiff)( N, k, X, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut, workspace, strideW );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N+N1+N2-k, strideOut, argv, 10 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Workspace, N+N1+N2-1, strideW, argv, 12 );
+	API_SUFFIX(stdlib_strided_sdiff)( N, k, X, strideX, N1, prepend, strideP, N2, append, strideA, Out, strideOut, Workspace, strideW );
 	return NULL;
 }
 
@@ -77,9 +77,9 @@ static napi_value addon_method( napi_env env, napi_callback_info info ) {
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 6 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 10 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, out, N+N1+N2-k, strideOut, argv, 13 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, workspace, N+N1+N2-1, strideW, argv, 16 );
-	API_SUFFIX(stdlib_strided_sdiff_ndarray)( N, k, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut, workspace, strideW, offsetW );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N+N1+N2-k, strideOut, argv, 13 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Workspace, N+N1+N2-1, strideW, argv, 16 );
+	API_SUFFIX(stdlib_strided_sdiff_ndarray)( N, k, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, Out, strideOut, offsetOut, Workspace, strideW, offsetW );
 	return NULL;
 }
 
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/main.c
index e8d1563cc528..d265a72a2f28 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/main.c
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/main.c
@@ -34,18 +34,18 @@
 * @param N2        number of indexed elements of append
 * @param append    append array
 * @param strideA   stride length for append
-* @param out       output array
-* @param strideOut stride length for out
-* @param Workspace workspace array
-* @param strideW   stride length for workspace
+* @param Out       Output array
+* @param strideOut stride length for Out
+* @param Workspace Workspace array
+* @param strideW   stride length for Workspace
 */
-void API_SUFFIX(stdlib_strided_sdiff)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, float *out, const CBLAS_INT strideOut, float *Workspace, const CBLAS_INT strideW ) {
+void API_SUFFIX(stdlib_strided_sdiff)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, float *Out, const CBLAS_INT strideOut, float *Workspace, const CBLAS_INT strideW ) {
 	CBLAS_INT ox = stdlib_strided_stride2offset( N, strideX );
 	CBLAS_INT op = stdlib_strided_stride2offset( N1, strideP );
 	CBLAS_INT oa = stdlib_strided_stride2offset( N2, strideA );
 	CBLAS_INT oo = stdlib_strided_stride2offset( N+N1+N2-k, strideOut );
 	CBLAS_INT ow = stdlib_strided_stride2offset( N+N1+N2-1, strideW );
-	API_SUFFIX(stdlib_strided_sdiff_ndarray)( N, k, X, strideX, ox, N1, prepend, strideP, op, N2, append, strideA, oa, out, strideOut, oo, Workspace, strideW, ow );
+	API_SUFFIX(stdlib_strided_sdiff_ndarray)( N, k, X, strideX, ox, N1, prepend, strideP, op, N2, append, strideA, oa, Out, strideOut, oo, Workspace, strideW, ow );
 }
 
 /**
@@ -63,11 +63,11 @@ void API_SUFFIX(stdlib_strided_sdiff)( const CBLAS_INT N, const CBLAS_INT k, con
 * @param append   append array
 * @param strideA  stride length for append
 * @param offsetA  starting index for append
-* @param out      output array
-* @param strideOut stride length for out
-* @param offsetOut starting index for out
+* @param Out      Output array
+* @param strideOut stride length for Out
+* @param offsetOut starting index for Out
 */
-static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut ) {
+static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut ) {
 	CBLAS_INT total;
 	CBLAS_INT ix;
 	CBLAS_INT io;
@@ -89,7 +89,7 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 		for ( i = 1; i < N; i++ ) {
 			ix += strideX;
 			curr = X[ ix ];
-			out[ io ] = curr - prev;
+			Out[ io ] = curr - prev;
 			prev = curr;
 			io += strideOut;
 		}
@@ -104,18 +104,18 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 		for ( i = 1; i < N1; i++ ) {
 			ip += strideP;
 			curr = prepend[ ip ];
-			out[ io ] = curr - prev;
+			Out[ io ] = curr - prev;
 			prev = curr;
 			io += strideOut;
 		}
 		if ( N > 0 ) {
 			curr = X[ offsetX ];
-			out[ io ] = curr - prev;
+			Out[ io ] = curr - prev;
 			prev = curr;
 			io += strideOut;
 		} else if ( N2 > 0 ) {
 			curr = append[ offsetA ];
-			out[ io ] = curr - prev;
+			Out[ io ] = curr - prev;
 			prev = curr;
 			io += strideOut;
 		}
@@ -135,7 +135,7 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 			ix += strideX;
 			for ( i = 1; i < N; i++ ) {
 				curr = X[ ix ];
-				out[ io ] = curr - prev;
+				Out[ io ] = curr - prev;
 				prev = curr;
 				io += strideOut;
 				ix += strideX;
@@ -144,7 +144,7 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 			ix += strideX;
 			for ( i = 1; i < N; i++ ) {
 				curr = X[ ix ];
-				out[ io ] = curr - prev;
+				Out[ io ] = curr - prev;
 				prev = curr;
 				io += strideOut;
 				ix += strideX;
@@ -152,7 +152,7 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 		}
 		if ( N2 > 0 ) {
 			curr = append[ offsetA ];
-			out[ io ] = curr - prev;
+			Out[ io ] = curr - prev;
 			prev = curr;
 			io += strideOut;
 		}
@@ -163,7 +163,7 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 		ia = offsetA + strideA;
 		for ( i = 1; i < N2; i++ ) {
 			curr = append[ ia ];
-			out[ io ] = curr - prev;
+			Out[ io ] = curr - prev;
 			prev = curr;
 			io += strideOut;
 			ia += strideA;
@@ -187,14 +187,14 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 * @param append    append array
 * @param strideA   stride length for append
 * @param offsetA   starting index for append
-* @param out       output array
-* @param strideOut stride length for out
-* @param offsetOut starting index for out
-* @param Workspace workspace array
-* @param strideW   stride length for workspace
-* @param offsetW   starting index for workspace
+* @param Out       Output array
+* @param strideOut stride length for Out
+* @param offsetOut starting index for Out
+* @param Workspace Workspace array
+* @param strideW   stride length for Workspace
+* @param offsetW   starting index for Workspace
 */
-void API_SUFFIX(stdlib_strided_sdiff_ndarray)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut, float *Workspace, const CBLAS_INT strideW, const CBLAS_INT offsetW ) {
+void API_SUFFIX(stdlib_strided_sdiff_ndarray)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut, float *Workspace, const CBLAS_INT strideW, const CBLAS_INT offsetW ) {
 	CBLAS_INT total;
 	CBLAS_INT io;
 	CBLAS_INT n;
@@ -208,20 +208,20 @@ void API_SUFFIX(stdlib_strided_sdiff_ndarray)( const CBLAS_INT N, const CBLAS_IN
 		return;
 	}
 	if ( k == 0 ) {
-		// Copy `prepend` into output array:
-		c_scopy_ndarray( N1, prepend, strideP, offsetP, out, strideOut, offsetOut );
+		// Copy `prepend` into Output array:
+		c_scopy_ndarray( N1, prepend, strideP, offsetP, Out, strideOut, offsetOut );
 
-		// Copy `X` into output array:
+		// Copy `X` into Output array:
 		io = offsetOut + ( N1 * strideOut );
-		c_scopy_ndarray( N, X, strideX, offsetX, out, strideOut, io );
+		c_scopy_ndarray( N, X, strideX, offsetX, Out, strideOut, io );
 
-		// Copy `append` into output array:
+		// Copy `append` into Output array:
 		io = offsetOut + ( ( N1 + N ) * strideOut );
-		c_scopy_ndarray( N2, append, strideA, offsetA, out, strideOut, io );
+		c_scopy_ndarray( N2, append, strideA, offsetA, Out, strideOut, io );
 		return;
 	}
 	if ( k == 1 ) {
-		stdlib_strided_base_sdiff_ndarray( N, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut );
+		stdlib_strided_base_sdiff_ndarray( N, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, Out, strideOut, offsetOut );
 		return;
 	}
 	stdlib_strided_base_sdiff_ndarray( N, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, Workspace, strideW, offsetW );
@@ -231,5 +231,5 @@ void API_SUFFIX(stdlib_strided_sdiff_ndarray)( const CBLAS_INT N, const CBLAS_IN
 		stdlib_strided_base_sdiff_ndarray( n, Workspace, strideW, offsetW, 0, prepend, strideP, offsetP, 0, append, strideA, offsetA, Workspace, strideW, offsetW );
 		n -= 1;
 	}
-	stdlib_strided_base_sdiff_ndarray( n, Workspace, strideW, offsetW, 0, prepend, strideP, offsetP, 0, append, strideA, offsetA, out, strideOut, offsetOut );
+	stdlib_strided_base_sdiff_ndarray( n, Workspace, strideW, offsetW, 0, prepend, strideP, offsetP, 0, append, strideA, offsetA, Out, strideOut, offsetOut );
 }

From df9851ea6aabfbfd51493bfe1f107a21b76884bc Mon Sep 17 00:00:00 2001
From: headlessNode <harriskhan047@outlook.com>
Date: Fri, 13 Mar 2026 01:07:07 +0500
Subject: [PATCH 5/6] docs: apply suggestions from code review

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: passed
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: passed
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---
---
 lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md b/lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md
index 7ff00dca458e..c3357bf519ef 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md
@@ -233,7 +233,7 @@ console.log( 'Output', out );
 
 <!-- lint disable maximum-heading-length -->
 
-#### stdlib_strided_sdiff( N, k, X, strideX, N1, prepend, strideP, N2, append, strideA, \*Out, strideOut, \*Workspace, strideW )
+#### stdlib_strided_sdiff( N, k, \*X, strideX, N1, \*prepend, strideP, N2, \*append, strideA, \*Out, strideOut, \*Workspace, strideW )
 
 Calculates the k-th discrete forward differences of a single-precision floating-point strided array.
 
@@ -270,7 +270,7 @@ void stdlib_strided_sdiff( const CBLAS_INT N, const CBLAS_INT k, const float *X,
 
 <!-- lint disable maximum-heading-length -->
 
-#### stdlib_strided_sdiff_ndarray( N, k, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, \*Out, strideOut, offsetOut, \*Workspace, strideW, offsetW )
+#### stdlib_strided_sdiff_ndarray( N, k, \*X, strideX, offsetX, N1, \*prepend, strideP, offsetP, N2, \*append, strideA, offsetA, \*Out, strideOut, offsetOut, \*Workspace, strideW, offsetW )
 
 Calculates the k-th discrete forward differences of a single-precision floating-point strided array using alternative indexing semantics.
 

From f3d0d83502754fc0f0b425e46ea9a8fd3a147011 Mon Sep 17 00:00:00 2001
From: headlessNode <harriskhan047@outlook.com>
Date: Tue, 21 Apr 2026 21:38:52 +0500
Subject: [PATCH 6/6] fix: apply suggestions from code review

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: passed
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: passed
  - task: lint_javascript_src
    status: passed
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: passed
  - task: lint_javascript_tests
    status: passed
  - task: lint_javascript_benchmarks
    status: passed
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: missing_dependencies
  - task: lint_c_examples
    status: missing_dependencies
  - task: lint_c_benchmarks
    status: missing_dependencies
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: passed
  - task: lint_typescript_tests
    status: passed
  - task: lint_license_headers
    status: passed
---
---
 .../@stdlib/blas/ext/base/sdiff/README.md     |  92 ++++-----
 .../ext/base/sdiff/benchmark/benchmark.js     |   8 +-
 .../base/sdiff/benchmark/benchmark.native.js  |   8 +-
 .../base/sdiff/benchmark/benchmark.ndarray.js |   8 +-
 .../benchmark/benchmark.ndarray.native.js     |   8 +-
 .../base/sdiff/benchmark/c/benchmark.length.c |   4 +-
 .../@stdlib/blas/ext/base/sdiff/docs/repl.txt |  62 +++---
 .../blas/ext/base/sdiff/docs/types/index.d.ts |  27 ++-
 .../blas/ext/base/sdiff/docs/types/test.ts    |  96 ++++-----
 .../blas/ext/base/sdiff/examples/c/example.c  |   8 +-
 .../blas/ext/base/sdiff/examples/index.js     |   3 +-
 .../include/stdlib/blas/ext/base/sdiff.h      |   8 +-
 .../@stdlib/blas/ext/base/sdiff/lib/base.js   | 151 ++++++++++++++
 .../blas/ext/base/sdiff/lib/ndarray.js        | 161 ++-------------
 .../blas/ext/base/sdiff/lib/ndarray.native.js |   6 +-
 .../@stdlib/blas/ext/base/sdiff/lib/sdiff.js  |   4 +-
 .../blas/ext/base/sdiff/lib/sdiff.native.js   |   4 +-
 .../@stdlib/blas/ext/base/sdiff/src/addon.c   |  12 +-
 .../@stdlib/blas/ext/base/sdiff/src/main.c    | 188 +++++++++---------
 .../@stdlib/blas/ext/base/sdiff/test/test.js  |  48 ++++-
 .../blas/ext/base/sdiff/test/test.ndarray.js  |   1 -
 21 files changed, 498 insertions(+), 409 deletions(-)
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/base.js

diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md b/lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md
index c3357bf519ef..1e1eff53f5aa 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/README.md
@@ -34,7 +34,7 @@ var sdiff = require( '@stdlib/blas/ext/base/sdiff' );
 
 #### sdiff( N, k, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut, workspace, strideW )
 
-Calculates the k-th discrete forward differences of a single-precision floating-point strided array.
+Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
 
 ```javascript
 var Float32Array = require( '@stdlib/array/float32' );
@@ -57,10 +57,10 @@ The function has the following parameters:
 -   **k**: number of times to recursively compute differences.
 -   **x**: input [`Float32Array`][@stdlib/array/float32].
 -   **strideX**: stride length for `x`.
--   **N1**: number of elements to `prepend`.
+-   **N1**: number of indexed elements to `prepend`.
 -   **prepend**: a [`Float32Array`][@stdlib/array/float32] containing values to prepend prior to computing differences.
 -   **strideP**: stride length for `prepend`.
--   **N2**: number of elements to `append`.
+-   **N2**: number of indexed elements to `append`.
 -   **append**: a [`Float32Array`][@stdlib/array/float32] containing values to append prior to computing differences.
 -   **strideA**: stride length for `append`.
 -   **out**: output [`Float32Array`][@stdlib/array/float32]. Must have `N + N1 + N2 - k` elements.
@@ -111,7 +111,7 @@ console.log( out );
 
 #### sdiff.ndarray( N, k, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut, workspace, strideW, offsetW )
 
-Calculates the k-th discrete forward differences of a single-precision floating-point strided array using alternative indexing semantics.
+Calculates the k-th discrete forward difference of a single-precision floating-point strided array using alternative indexing semantics.
 
 ```javascript
 var Float32Array = require( '@stdlib/array/float32' );
@@ -134,9 +134,9 @@ The function has the following additional parameters:
 -   **offsetP**: starting index for `prepend`.
 -   **offsetA**: starting index for `append`.
 -   **offsetOut**: starting index for `out`.
--   **offsetW**: starting index of `workspace`.
+-   **offsetW**: starting index for `workspace`.
 
-While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example, to access only the last three elements:
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameters support indexing semantics based on starting indices. For example, to access only the last three elements:
 
 ```javascript
 var Float32Array = require( '@stdlib/array/float32' );
@@ -161,7 +161,8 @@ console.log( out );
 
 ## Notes
 
--   If `N <= 0`, both functions return the output array unchanged.
+-   When `k <= 1`, the workspace array is unused and thus ignored.
+-   If `N + N1 + N2 <= 1` or `k >= N + N1 + N2`, both functions return the output array unchanged.
 
 </section>
 
@@ -194,11 +195,10 @@ var a = discreteUniform( 2, -100, 100, {
 console.log( 'Append array: ', a );
 
 var out = new Float32Array( 10 );
-
 var w = new Float32Array( 13 );
 
 sdiff( x.length, 4, x, 1, 2, p, 1, 2, a, 1, out, 1, w, 1 );
-console.log( 'Output', out );
+console.log( 'Output: ', out );
 ```
 
 </section>
@@ -233,9 +233,9 @@ console.log( 'Output', out );
 
 <!-- lint disable maximum-heading-length -->
 
-#### stdlib_strided_sdiff( N, k, \*X, strideX, N1, \*prepend, strideP, N2, \*append, strideA, \*Out, strideOut, \*Workspace, strideW )
+#### stdlib_strided_sdiff( N, k, \*X, strideX, N1, \*Prepend, strideP, N2, \*Append, strideA, \*Out, strideOut, \*Workspace, strideW )
 
-Calculates the k-th discrete forward differences of a single-precision floating-point strided array.
+Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
 
 ```c
 const float x[] = { 2.0f, 4.0f, 6.0f, 8.0f, 10.0f };
@@ -252,27 +252,27 @@ The function accepts the following arguments:
 -   **N**: `[in] CBLAS_INT` number of indexed elements.
 -   **k**: `[in] CBLAS_INT` number of times to recursively compute differences.
 -   **X**: `[in] float*` input array.
--   **strideX**: `[in] CBLAS_INT` stride length for `x`.
--   **N1**: `[in] CBLAS_INT` number of elements in `prepend`.
--   **prepend**: `[in] float*` array containing values to prepend prior to computing differences.
--   **strideP**: `[in] CBLAS_INT` stride length for `prepend`.
--   **N2**: `[in] CBLAS_INT` number of elements in `append`.
--   **append**: `[in] float*` array containing values to append prior to computing differences.
--   **strideA**: `[in] CBLAS_INT` stride length for `append`.
--   **Out**: `[inout] float*` output array. Must have `N + N1 + N2 - k` elements.
--   **strideOut**: `[in] CBLAS_INT` stride length for `out`.
--   **Workspace**: `[inout] float*` workspace array. Must have `N + N1 + N2 - 1` elements.
--   **strideW**: `[in] CBLAS_INT` stride length for `workspace`.
+-   **strideX**: `[in] CBLAS_INT` stride length for `X`.
+-   **N1**: `[in] CBLAS_INT` number of indexed elements for `Prepend`.
+-   **Prepend**: `[in] float*` array containing values to prepend prior to computing differences.
+-   **strideP**: `[in] CBLAS_INT` stride length for `Prepend`.
+-   **N2**: `[in] CBLAS_INT` number of indexed elements for `Append`.
+-   **Append**: `[in] float*` array containing values to append prior to computing differences.
+-   **strideA**: `[in] CBLAS_INT` stride length for `Append`.
+-   **Out**: `[out] float*` output array. Must have `N + N1 + N2 - k` elements.
+-   **strideOut**: `[in] CBLAS_INT` stride length for `Out`.
+-   **Workspace**: `[out] float*` workspace array. Must have `N + N1 + N2 - 1` elements.
+-   **strideW**: `[in] CBLAS_INT` stride length for `Workspace`.
 
 ```c
-void stdlib_strided_sdiff( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, float *Out, const CBLAS_INT strideOut, float *Workspace, const CBLAS_INT strideW );
+void stdlib_strided_sdiff( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *Prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *Append, const CBLAS_INT strideA, float *Out, const CBLAS_INT strideOut, float *Workspace, const CBLAS_INT strideW );
 ```
 
 <!-- lint disable maximum-heading-length -->
 
-#### stdlib_strided_sdiff_ndarray( N, k, \*X, strideX, offsetX, N1, \*prepend, strideP, offsetP, N2, \*append, strideA, offsetA, \*Out, strideOut, offsetOut, \*Workspace, strideW, offsetW )
+#### stdlib_strided_sdiff_ndarray( N, k, \*X, strideX, offsetX, N1, \*Prepend, strideP, offsetP, N2, \*Append, strideA, offsetA, \*Out, strideOut, offsetOut, \*Workspace, strideW, offsetW )
 
-Calculates the k-th discrete forward differences of a single-precision floating-point strided array using alternative indexing semantics.
+Calculates the k-th discrete forward difference of a single-precision floating-point strided array using alternative indexing semantics.
 
 ```c
 const float x[] = { 2.0f, 4.0f, 6.0f, 8.0f, 10.0f };
@@ -289,25 +289,25 @@ The function accepts the following arguments:
 -   **N**: `[in] CBLAS_INT` number of indexed elements.
 -   **k**: `[in] CBLAS_INT` number of times to recursively compute differences.
 -   **X**: `[in] float*` input array.
--   **strideX**: `[in] CBLAS_INT` stride length for `x`.
--   **offsetX**: `[in] CBLAS_INT` starting index for `x`.
--   **N1**: `[in] CBLAS_INT` number of elements in `prepend`.
--   **prepend**: `[in] float*` array containing values to prepend prior to computing differences.
--   **strideP**: `[in] CBLAS_INT` stride length for `prepend`.
--   **offsetP**: `[in] CBLAS_INT` starting index for `prepend`.
--   **N2**: `[in] CBLAS_INT` number of elements in `append`.
--   **append**: `[in] float*` array containing values to append prior to computing differences.
--   **strideA**: `[in] CBLAS_INT` stride length for `append`.
--   **offsetA**: `[in] CBLAS_INT` starting index for `append`.
--   **Out**: `[inout] float*` output array. Must have `N + N1 + N2 - k` elements.
--   **strideOut**: `[in] CBLAS_INT` stride length for `out`.
--   **offsetOut**: `[in] CBLAS_INT` starting index for `out`.
--   **Workspace**: `[inout] float*` workspace array. Must have `N + N1 + N2 - 1` elements.
--   **strideW**: `[in] CBLAS_INT` stride length for `workspace`.
--   **offsetW**: `[in] CBLAS_INT` starting index for `workspace`.
+-   **strideX**: `[in] CBLAS_INT` stride length for `X`.
+-   **offsetX**: `[in] CBLAS_INT` starting index for `X`.
+-   **N1**: `[in] CBLAS_INT` number of indexed elements for `Prepend`.
+-   **Prepend**: `[in] float*` array containing values to prepend prior to computing differences.
+-   **strideP**: `[in] CBLAS_INT` stride length for `Prepend`.
+-   **offsetP**: `[in] CBLAS_INT` starting index for `Prepend`.
+-   **N2**: `[in] CBLAS_INT` number of indexed elements for `Append`.
+-   **Append**: `[in] float*` array containing values to append prior to computing differences.
+-   **strideA**: `[in] CBLAS_INT` stride length for `Append`.
+-   **offsetA**: `[in] CBLAS_INT` starting index for `Append`.
+-   **Out**: `[out] float*` output array. Must have `N + N1 + N2 - k` elements.
+-   **strideOut**: `[in] CBLAS_INT` stride length for `Out`.
+-   **offsetOut**: `[in] CBLAS_INT` starting index for `Out`.
+-   **Workspace**: `[out] float*` workspace array. Must have `N + N1 + N2 - 1` elements.
+-   **strideW**: `[in] CBLAS_INT` stride length for `Workspace`.
+-   **offsetW**: `[in] CBLAS_INT` starting index for `Workspace`.
 
 ```c
-void stdlib_strided_sdiff_ndarray( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut, float *Workspace, const CBLAS_INT strideW, const CBLAS_INT offsetW );
+void stdlib_strided_sdiff_ndarray( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *Prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *Append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut, float *Workspace, const CBLAS_INT strideW, const CBLAS_INT offsetW );
 ```
 
 </section>
@@ -336,16 +336,16 @@ int main( void ) {
     // Create a strided array:
     const float x[] = { 1.0f, -2.0f, 3.0f, -4.0f, 5.0f, -6.0f, 7.0f, -8.0f };
 
-    // Define prepend values:
+    // Define a list of values to prepend:
     const float p[] = { -1.0f };
 
-    // Define append values:
+    // Define a list of values to append:
     const float a[] = { 10.0f };
 
-    // Define output array:
+    // Define an output array:
     float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
 
-    // Define workspace:
+    // Define a workspace:
     float w[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
 
     // Compute forward differences:
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.js
index b9d5ad893ff7..2bfa893cd978 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.js
@@ -22,7 +22,7 @@
 
 var bench = require( '@stdlib/bench' );
 var uniform = require( '@stdlib/random/array/uniform' );
-var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var Float32Array = require( '@stdlib/array/float32' );
 var format = require( '@stdlib/string/format' );
@@ -61,7 +61,7 @@ function createBenchmark( len ) {
 	N = len;
 	N1 = 1;
 	N2 = 1;
-	k = 1; // worst case: N + N1 + N2 - 1
+	k = 1;
 	ol = N + N1 + N2 - k;
 
 	x = uniform( N, -100, 100, options );
@@ -83,12 +83,12 @@ function createBenchmark( len ) {
 		b.tic();
 		for ( i = 0; i < b.iterations; i++ ) {
 			sdiff( N, k, x, 1, N1, p, 1, N2, a, 1, o, 1, w, 1 );
-			if ( isnan( o[ i%ol ] ) ) {
+			if ( isnanf( o[ i%ol ] ) ) {
 				b.fail( 'should not return NaN' );
 			}
 		}
 		b.toc();
-		if ( isnan( o[ i%ol ] ) ) {
+		if ( isnanf( o[ i%ol ] ) ) {
 			b.fail( 'should not return NaN' );
 		}
 		b.pass( 'benchmark finished' );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.native.js
index e4df3440af8c..710a0ea1a5a3 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.native.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.native.js
@@ -23,7 +23,7 @@
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
 var uniform = require( '@stdlib/random/array/uniform' );
-var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var Float32Array = require( '@stdlib/array/float32' );
 var format = require( '@stdlib/string/format' );
@@ -66,7 +66,7 @@ function createBenchmark( len ) {
 	N = len;
 	N1 = 1;
 	N2 = 1;
-	k = 1; // worst case: N + N1 + N2 - 1
+	k = 1;
 	ol = N + N1 + N2 - k;
 
 	x = uniform( N, -100, 100, options );
@@ -88,12 +88,12 @@ function createBenchmark( len ) {
 		b.tic();
 		for ( i = 0; i < b.iterations; i++ ) {
 			sdiff( N, k, x, 1, N1, p, 1, N2, a, 1, o, 1, w, 1 );
-			if ( isnan( o[ i%ol ] ) ) {
+			if ( isnanf( o[ i%ol ] ) ) {
 				b.fail( 'should not return NaN' );
 			}
 		}
 		b.toc();
-		if ( isnan( o[ i%ol ] ) ) {
+		if ( isnanf( o[ i%ol ] ) ) {
 			b.fail( 'should not return NaN' );
 		}
 		b.pass( 'benchmark finished' );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.js
index a308547d5137..832ea84a8117 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.js
@@ -22,7 +22,7 @@
 
 var bench = require( '@stdlib/bench' );
 var uniform = require( '@stdlib/random/array/uniform' );
-var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var Float32Array = require( '@stdlib/array/float32' );
 var format = require( '@stdlib/string/format' );
@@ -61,7 +61,7 @@ function createBenchmark( len ) {
 	N = len;
 	N1 = 1;
 	N2 = 1;
-	k = 1; // worst case: N + N1 + N2 - 1
+	k = 1;
 	ol = N + N1 + N2 - k;
 
 	x = uniform( N, -100, 100, options );
@@ -83,12 +83,12 @@ function createBenchmark( len ) {
 		b.tic();
 		for ( i = 0; i < b.iterations; i++ ) {
 			sdiff( N, k, x, 1, 0, N1, p, 1, 0, N2, a, 1, 0, o, 1, 0, w, 1, 0 );
-			if ( isnan( o[ i%ol ] ) ) {
+			if ( isnanf( o[ i%ol ] ) ) {
 				b.fail( 'should not return NaN' );
 			}
 		}
 		b.toc();
-		if ( isnan( o[ i%ol ] ) ) {
+		if ( isnanf( o[ i%ol ] ) ) {
 			b.fail( 'should not return NaN' );
 		}
 		b.pass( 'benchmark finished' );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.native.js
index ac03c4d98d29..106be6a3e79e 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.native.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/benchmark.ndarray.native.js
@@ -23,7 +23,7 @@
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
 var uniform = require( '@stdlib/random/array/uniform' );
-var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var Float32Array = require( '@stdlib/array/float32' );
 var format = require( '@stdlib/string/format' );
@@ -66,7 +66,7 @@ function createBenchmark( len ) {
 	N = len;
 	N1 = 1;
 	N2 = 1;
-	k = 1; // worst case: N + N1 + N2 - 1
+	k = 1;
 	ol = N + N1 + N2 - k;
 
 	x = uniform( N, -100, 100, options );
@@ -88,12 +88,12 @@ function createBenchmark( len ) {
 		b.tic();
 		for ( i = 0; i < b.iterations; i++ ) {
 			sdiff( N, k, x, 1, 0, N1, p, 1, 0, N2, a, 1, 0, o, 1, 0, w, 1, 0 );
-			if ( isnan( o[ i%ol ] ) ) {
+			if ( isnanf( o[ i%ol ] ) ) {
 				b.fail( 'should not return NaN' );
 			}
 		}
 		b.toc();
-		if ( isnan( o[ i%ol ] ) ) {
+		if ( isnanf( o[ i%ol ] ) ) {
 			b.fail( 'should not return NaN' );
 		}
 		b.pass( 'benchmark finished' );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/benchmark.length.c
index ca14bf52618d..735b761beead 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/benchmark.length.c
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/benchmark/c/benchmark.length.c
@@ -113,7 +113,7 @@ static double benchmark1( int iterations, int len ) {
 	N = len;
 	N1 = 1;
 	N2 = 1;
-	k = 1; // worst case: N + N1 + N2 - 1
+	k = 1;
 	ol = N + N1 + N2 - k;
 	wl = N + N1 + N2 - 1;
 
@@ -185,7 +185,7 @@ static double benchmark2( int iterations, int len ) {
 	N = len;
 	N1 = 1;
 	N2 = 1;
-	k = 1; // worst case: N + N1 + N2 - 1
+	k = 1;
 	ol = N + N1 + N2 - k;
 	wl = N + N1 + N2 - 1;
 
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/repl.txt
index 2a828d16994e..32394ba22a73 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/repl.txt
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/repl.txt
@@ -1,6 +1,6 @@
 
 {{alias}}( N, k, x,sx, N1,p,sp, N2,a,sa, out,so, w,sw )
-    Calculates the k-th discrete forward differences of a single-precision
+    Calculates the k-th discrete forward difference of a single-precision
     floating-point strided array.
 
     The `N` and stride parameters determine which elements in the strided arrays
@@ -9,7 +9,8 @@
     Indexing is relative to the first index. To introduce an offset, use a typed
     array view.
 
-    If `N <= 0`, the function returns the output array unchanged.
+    If `N + N1 + N2 <= 1` or `k >= N + N1 + N2`, the function returns the
+    output array unchanged.
 
     Parameters
     ----------
@@ -26,34 +27,34 @@
         Stride length for `x`.
 
     N1: integer
-        Number of elements to `prepend`.
+        Number of indexed elements for `p`.
 
     p: Float32Array
         Array containing values to prepend prior to computing differences.
 
     sp: integer
-        Stride length for `prepend`.
+        Stride length for `p`.
 
     N2: integer
-        Number of elements to `append`.
+        Number of indexed elements for `a`.
 
     a: Float32Array
         Array containing values to append prior to computing differences.
 
     sa: integer
-        Stride length for `append`.
+        Stride length for `a`.
 
     out: Float32Array
-        Output array.
+        Output array. Must have `N + N1 + N2 - k` indexed elements.
 
     so: integer
         Stride length for `out`.
 
     w: Float32Array
-        Workspace array.
+        Workspace array. Must have `N + N1 + N2 - 1` indexed elements.
 
     sw: integer
-        Stride length for `workspace`.
+        Stride length for `w`.
 
     Returns
     -------
@@ -62,7 +63,7 @@
 
     Examples
     --------
-    // Standard Usage:
+    // Standard usage:
     > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 2.0 ] );
     > var p = new {{alias:@stdlib/array/float32}}( [ 0.0 ] );
     > var a = new {{alias:@stdlib/array/float32}}( [ 3.0 ] );
@@ -75,8 +76,8 @@
     > x = new {{alias:@stdlib/array/float32}}( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
     > p = new {{alias:@stdlib/array/float32}}( [ 1.0 ] );
     > a = new {{alias:@stdlib/array/float32}}( [ 11.0 ] );
-    > var out = new {{alias:@stdlib/array/float32}}( 4 );
-    > var w = new {{alias:@stdlib/array/float32}}( 4 );
+    > out = new {{alias:@stdlib/array/float32}}( 4 );
+    > w = new {{alias:@stdlib/array/float32}}( 4 );
     > {{alias}}( 3, 1, x, 2, 1, p, 1, 1, a, 1, out, 1, w, 1 )
     <Float32Array>[ 1.0, 4.0, 4.0, 1.0 ]
 
@@ -85,14 +86,14 @@
     > var x1 = new {{alias:@stdlib/array/float32}}( x0.buffer, x0.BYTES_PER_ELEMENT*1 );
     > p = new {{alias:@stdlib/array/float32}}( [ 1.0 ] );
     > a = new {{alias:@stdlib/array/float32}}( [ 11.0 ] );
-    > var out = new {{alias:@stdlib/array/float32}}( 5 );
-    > var w = new {{alias:@stdlib/array/float32}}( 5 );
+    > out = new {{alias:@stdlib/array/float32}}( 5 );
+    > w = new {{alias:@stdlib/array/float32}}( 5 );
     > {{alias}}( x1.length, 1, x1, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 )
     <Float32Array>[ 3.0, 2.0, 2.0, 2.0, 1.0 ]
 
 
-{{alias}}.ndarray( N, k, X,sx,ox, N1,p,sp,op, N2,a,sa,oa, Out,so,oo, W,sw,ow )
-    Calculates the k-th discrete forward differences of a single-precision
+{{alias}}.ndarray( N, k, x,sx,ox, N1, p,sp,op, N2, a,sa,oa, out,so,oo, w,sw,ow )
+    Calculates the k-th discrete forward difference of a single-precision
     floating-point strided array using alternative indexing semantics.
 
     While typed array views mandate a view offset based on the underlying
@@ -107,7 +108,7 @@
     k: integer
         Number of times to recursively compute differences.
 
-    X: Float32Array
+    x: Float32Array
         Input array.
 
     sx: integer
@@ -117,31 +118,31 @@
         Starting index for `x`.
 
     N1: integer
-        Number of elements to `prepend`.
+        Number of indexed elements for `p`.
 
     p: Float32Array
         Array containing values to prepend prior to computing differences.
 
     sp: integer
-        Stride length for `prepend`.
+        Stride length for `p`.
 
     op: integer
-        Starting index for `prepend`.
+        Starting index for `p`.
 
     N2: integer
-        Number of elements to `append`.
+        Number of indexed elements for `a`.
 
     a: Float32Array
         Array containing values to append prior to computing differences.
 
     sa: integer
-        Stride length for `append`.
+        Stride length for `a`.
 
     oa: integer
-        Starting index for `append`.
+        Starting index for `a`.
 
-    Out: Float32Array
-        Output array.
+    out: Float32Array
+        Output array. Must have `N + N1 + N2 - k` indexed elements.
 
     so: integer
         Stride length for `out`.
@@ -149,14 +150,14 @@
     oo: integer
         Starting index for `out`.
 
-    W: Float32Array
-        Workspace array.
+    w: Float32Array
+        Workspace array. Must have `N + N1 + N2 - 1` indexed elements.
 
     sw: integer
-        Stride length for `workspace`.
+        Stride length for `w`.
 
     ow: integer
-        Starting index for `workspace`.
+        Starting index for `w`.
 
     Returns
     -------
@@ -165,7 +166,7 @@
 
     Examples
     --------
-    // Standard Usage:
+    // Standard usage:
     > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 2.0 ] );
     > var p = new {{alias:@stdlib/array/float32}}( [ 0.0 ] );
     > var a = new {{alias:@stdlib/array/float32}}( [ 3.0 ] );
@@ -185,3 +186,4 @@
 
     See Also
     --------
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/index.d.ts
index 158d19b6d8b3..d67709119508 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/index.d.ts
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/index.d.ts
@@ -25,14 +25,19 @@ interface Routine {
 	/**
 	* Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
 	*
+	* ## Notes
+	*
+	* -   The `out` array must have `N + N1 + N2 - k` elements.
+	* -   The `workspace` array must have `N + N1 + N2 - 1` elements.
+	*
 	* @param N - number of indexed elements
 	* @param k - number of times to recursively compute differences
 	* @param x - input array
 	* @param strideX - stride length for `x`
-	* @param N1 - number of indexed elements of prepend
+	* @param N1 - number of indexed elements for `prepend`
 	* @param prepend - prepend array
 	* @param strideP - stride length for `prepend`
-	* @param N2 - number of indexed elements of append
+	* @param N2 - number of indexed elements for `append`
 	* @param append - append array
 	* @param strideA - stride length for `append`
 	* @param out - output array
@@ -60,16 +65,21 @@ interface Routine {
 	/**
 	* Calculates the k-th discrete forward difference of a single-precision floating-point strided array using alternative indexing semantics.
 	*
+	* ## Notes
+	*
+	* -   The `out` array must have `N + N1 + N2 - k` elements.
+	* -   The `workspace` array must have `N + N1 + N2 - 1` elements.
+	*
 	* @param N - number of indexed elements
 	* @param k - number of times to recursively compute differences
 	* @param x - input array
 	* @param strideX - stride length for `x`
 	* @param offsetX - starting index for `x`
-	* @param N1 - number of indexed elements of prepend
+	* @param N1 - number of indexed elements for `prepend`
 	* @param prepend - prepend array
 	* @param strideP - stride length for `prepend`
 	* @param offsetP - starting index for `prepend`
-	* @param N2 - number of indexed elements of append
+	* @param N2 - number of indexed elements for `append`
 	* @param append - append array
 	* @param strideA - stride length for `append`
 	* @param offsetA - starting index for `append`
@@ -101,14 +111,19 @@ interface Routine {
 /**
 * Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
 *
+* ## Notes
+*
+* -   The `out` array must have `N + N1 + N2 - k` elements.
+* -   The `workspace` array must have `N + N1 + N2 - 1` elements.
+*
 * @param N - number of indexed elements
 * @param k - number of times to recursively compute differences
 * @param x - input array
 * @param strideX - stride length for `x`
-* @param N1 - number of indexed elements of prepend
+* @param N1 - number of indexed elements for `prepend`
 * @param prepend - prepend array
 * @param strideP - stride length for `prepend`
-* @param N2 - number of indexed elements of append
+* @param N2 - number of indexed elements for `append`
 * @param append - append array
 * @param strideA - stride length for `append`
 * @param out - output array
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/test.ts
index daafa1cd28eb..4639b6f9acd5 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/test.ts
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/docs/types/test.ts
@@ -29,7 +29,7 @@ import sdiff = require( './index' );
 	const out = new Float32Array( 11 );
 	const w = new Float32Array( 11 );
 
-	sdiff( x.length, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectType Float32Array
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectType Float32Array
 }
 
 // The compiler throws an error if the function is provided a first argument which is not a number...
@@ -40,14 +40,14 @@ import sdiff = require( './index' );
 	const out = new Float32Array( 11 );
 	const w = new Float32Array( 11 );
 
-	sdiff( '10', 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( true, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( false, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( null, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( undefined, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( [], 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( {}, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( ( x: number ): number => x, 1.0, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( '10', 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( true, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( false, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( null, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( undefined, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( [], 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( {}, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( ( x: number ): number => x, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
 }
 
 // The compiler throws an error if the function is provided a second argument which is not a number...
@@ -70,19 +70,20 @@ import sdiff = require( './index' );
 
 // The compiler throws an error if the function is provided a third argument which is not a Float32Array...
 {
+	const x = new Float32Array( 10 );
 	const p = new Float32Array( 1 );
 	const a = new Float32Array( 1 );
 	const out = new Float32Array( 11 );
 	const w = new Float32Array( 11 );
 
-	sdiff( 10, 1, '10', 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( 10, 1, true, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( 10, 1, false, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( 10, 1, null, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( 10, 1, undefined, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( 10, 1, [], 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( 10, 1, {}, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
-	sdiff( 10, 1, ( x: number ): number => x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, '10', 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, true, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, false, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, null, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, undefined, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, [], 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, {}, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
+	sdiff( x.length, 1, ( x: number ): number => x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1 ); // $ExpectError
 }
 
 // The compiler throws an error if the function is provided a fourth argument which is not a number...
@@ -214,7 +215,7 @@ import sdiff = require( './index' );
 	const x = new Float32Array( 10 );
 	const p = new Float32Array( 1 );
 	const a = new Float32Array( 1 );
-	const w = new Float32Array( 11 );
+	const w = new Float32Array( 9 );
 
 	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, '10', 1, w, 1 ); // $ExpectError
 	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, true, 1, w, 1 ); // $ExpectError
@@ -249,7 +250,7 @@ import sdiff = require( './index' );
 	const x = new Float32Array( 10 );
 	const p = new Float32Array( 1 );
 	const a = new Float32Array( 1 );
-	const out = new Float32Array( 11 );
+	const out = new Float32Array( 9 );
 
 	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, '10', 1 ); // $ExpectError
 	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, true, 1 ); // $ExpectError
@@ -301,6 +302,7 @@ import sdiff = require( './index' );
 	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out ); // $ExpectError
 	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
 	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w ); // $ExpectError
+	sdiff( x.length, 1, x, 1, 1, p, 1, 1, a, 1, out, 1, w, 1, {} ); // $ExpectError
 }
 
 // Attached to main export is an `ndarray` method which returns a Float32Array...
@@ -311,7 +313,7 @@ import sdiff = require( './index' );
 	const out = new Float32Array( 11 );
 	const w = new Float32Array( 11 );
 
-	sdiff.ndarray( x.length, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectType Float32Array
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectType Float32Array
 }
 
 // The compiler throws an error if the `ndarray` method is provided a first argument which is not a number...
@@ -322,14 +324,14 @@ import sdiff = require( './index' );
 	const out = new Float32Array( 11 );
 	const w = new Float32Array( 11 );
 
-	sdiff.ndarray( '10', 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( true, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( false, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( null, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( undefined, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( [], 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( {}, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( ( x: number ): number => x, 1.0, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( '10', 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( true, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( false, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( null, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( undefined, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( [], 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( {}, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( ( x: number ): number => x, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
 }
 
 // The compiler throws an error if the `ndarray` method is provided a second argument which is not a number...
@@ -352,19 +354,20 @@ import sdiff = require( './index' );
 
 // The compiler throws an error if the `ndarray` method is provided a third argument which is not a Float32Array...
 {
+	const x = new Float32Array( 10 );
 	const p = new Float32Array( 1 );
 	const a = new Float32Array( 1 );
 	const out = new Float32Array( 11 );
 	const w = new Float32Array( 11 );
 
-	sdiff.ndarray( 10, 1, '10', 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( 10, 1, true, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( 10, 1, false, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( 10, 1, null, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( 10, 1, undefined, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( 10, 1, [], 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( 10, 1, {}, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
-	sdiff.ndarray( 10, 1, ( x: number ): number => x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, '10', 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, true, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, false, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, null, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, undefined, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, [], 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, {}, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, ( x: number ): number => x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
 }
 
 // The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a number...
@@ -497,7 +500,7 @@ import sdiff = require( './index' );
 	const x = new Float32Array( 10 );
 	const p = new Float32Array( 1 );
 	const out = new Float32Array( 11 );
-	const w = new Float32Array( 11 );
+	const w = new Float32Array( 9 );
 
 	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, '10', 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
 	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, true, 1, 0, out, 1, 0, w, 1, 0 ); // $ExpectError
@@ -532,7 +535,7 @@ import sdiff = require( './index' );
 	const x = new Float32Array( 10 );
 	const p = new Float32Array( 1 );
 	const a = new Float32Array( 1 );
-	const out = new Float32Array( 11 );
+	const out = new Float32Array( 9 );
 	const w = new Float32Array( 11 );
 
 	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, '10', out, 1, 0, w, 1, 0 ); // $ExpectError
@@ -641,14 +644,14 @@ import sdiff = require( './index' );
 	const out = new Float32Array( 11 );
 	const w = new Float32Array( 11 );
 
-	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, '10' ); // $ExpectError
-	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, true ); // $ExpectError
-	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, false ); // $ExpectError
-	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, null ); // $ExpectError
-	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, undefined ); // $ExpectError
-	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, [] ); // $ExpectError
-	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, {} ); // $ExpectError
-	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, ( x: number ): number => x ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 0, '10' ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 0, true ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 0, false ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 0, null ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 0, undefined ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 0, [] ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 0, {} ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 0, ( x: number ): number => x ); // $ExpectError
 }
 
 // The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments...
@@ -678,4 +681,5 @@ import sdiff = require( './index' );
 	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
 	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w ); // $ExpectError
 	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1 ); // $ExpectError
+	sdiff.ndarray( x.length, 1, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, w, 1, 0, {} ); // $ExpectError
 }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/example.c b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/example.c
index 0a17b25467ee..2c4867ed383f 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/example.c
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/c/example.c
@@ -23,16 +23,16 @@ int main( void ) {
 	// Create a strided array:
 	const float x[] = { 1.0f, -2.0f, 3.0f, -4.0f, 5.0f, -6.0f, 7.0f, -8.0f };
 
-	// Define prepend values:
+	// Define a list of values to prepend:
 	const float p[] = { -1.0f };
 
-	// Define append values:
+	// Define a list of values to append:
 	const float a[] = { 10.0f };
 
-	// Define output array:
+	// Define the output array:
 	float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
 
-	// Define workspace:
+	// Define a workspace:
 	float w[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
 
 	// Compute forward differences:
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/index.js
index c4e79b629048..f2a5a0056b21 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/index.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/examples/index.js
@@ -38,8 +38,7 @@ var a = discreteUniform( 2, -100, 100, {
 console.log( 'Append array: ', a );
 
 var out = new Float32Array( 10 );
-
 var w = new Float32Array( 13 );
 
 sdiff( x.length, 4, x, 1, 2, p, 1, 2, a, 1, out, 1, w, 1 );
-console.log( 'Output', out );
+console.log( 'Output: ', out );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/include/stdlib/blas/ext/base/sdiff.h b/lib/node_modules/@stdlib/blas/ext/base/sdiff/include/stdlib/blas/ext/base/sdiff.h
index aad3cf66869a..52617d029bee 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/include/stdlib/blas/ext/base/sdiff.h
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/include/stdlib/blas/ext/base/sdiff.h
@@ -29,14 +29,14 @@ extern "C" {
 #endif
 
 /**
-* Calculates the k-th discrete forward differences of a single-precision floating-point strided array.
+* Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
 */
-void API_SUFFIX(stdlib_strided_sdiff)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, float *Out, const CBLAS_INT strideOut, float *Workspace, const CBLAS_INT strideW );
+void API_SUFFIX(stdlib_strided_sdiff)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *Prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *Append, const CBLAS_INT strideA, float *Out, const CBLAS_INT strideOut, float *Workspace, const CBLAS_INT strideW );
 
 /**
-* Calculates the k-th discrete forward differences of a single-precision floating-point strided array using alternative indexing semantics.
+* Calculates the k-th discrete forward difference of a single-precision floating-point strided array using alternative indexing semantics.
 */
-void API_SUFFIX(stdlib_strided_sdiff_ndarray)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut, float *Workspace, const CBLAS_INT strideW, const CBLAS_INT offsetW );
+void API_SUFFIX(stdlib_strided_sdiff_ndarray)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *Prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *Append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut, float *Workspace, const CBLAS_INT strideW, const CBLAS_INT offsetW );
 
 
 #ifdef __cplusplus
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/base.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/base.js
new file mode 100644
index 000000000000..89ada589a97c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/base.js
@@ -0,0 +1,151 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-params, max-len */
+
+'use strict';
+
+// MAIN //
+
+/**
+* Calculates the forward difference of a single-precision floating-point strided array.
+*
+* @private
+* @param {PositiveInteger} N - number of indexed elements
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {PositiveInteger} offsetX - starting index for `x`
+* @param {PositiveInteger} N1 - number of indexed elements for `prepend`
+* @param {Float32Array} prepend - prepend array
+* @param {integer} strideP - stride length for `prepend`
+* @param {PositiveInteger} offsetP - starting index for `prepend`
+* @param {PositiveInteger} N2 - number of indexed elements for `append`
+* @param {Float32Array} append - append array
+* @param {integer} strideA - stride length for `append`
+* @param {PositiveInteger} offsetA - starting index for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {PositiveInteger} offsetOut - starting index for `out`
+* @returns {Float32Array} output array
+*/
+function base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut ) {
+	var total;
+	var prev;
+	var curr;
+	var ix;
+	var io;
+	var ip;
+	var ia;
+	var i;
+
+	total = N + N1 + N2;
+	if ( total <= 1 ) {
+		return out;
+	}
+	// Compute forward differences:
+	if ( N1 === 0 && N2 === 0 ) {
+		ix = offsetX;
+		io = offsetOut;
+		prev = x[ ix ];
+		for ( i = 1; i < N; i++ ) {
+			ix += strideX;
+			curr = x[ ix ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+		return out;
+	}
+	// Compute forward differences over the list of prepended values:
+	if ( N1 > 0 ) {
+		io = offsetOut;
+		ip = offsetP;
+		prev = prepend[ ip ];
+		for ( i = 1; i < N1; i++ ) {
+			ip += strideP;
+			curr = prepend[ ip ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+		if ( N > 0 ) {
+			curr = x[ offsetX ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		} else if ( N2 > 0 ) {
+			curr = append[ offsetA ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+	} else if ( N > 0 ) {
+		prev = x[ offsetX ];
+		io = offsetOut;
+	} else {
+		prev = append[ offsetA ];
+		io = offsetOut;
+	}
+	// Compute forward differences over the input array:
+	if ( N > 0 ) {
+		ix = offsetX;
+		if ( N1 === 0 ) {
+			prev = x[ ix ];
+			ix += strideX;
+			for ( i = 1; i < N; i++ ) {
+				curr = x[ ix ];
+				out[ io ] = curr - prev;
+				prev = curr;
+				io += strideOut;
+				ix += strideX;
+			}
+		} else {
+			ix += strideX;
+			for ( i = 1; i < N; i++ ) {
+				curr = x[ ix ];
+				out[ io ] = curr - prev;
+				prev = curr;
+				io += strideOut;
+				ix += strideX;
+			}
+		}
+		if ( N2 > 0 ) {
+			curr = append[ offsetA ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+		}
+	}
+	// Compute forward differences over the list of appended values:
+	if ( N2 > 0 ) {
+		ia = offsetA + strideA;
+		for ( i = 1; i < N2; i++ ) {
+			curr = append[ ia ];
+			out[ io ] = curr - prev;
+			prev = curr;
+			io += strideOut;
+			ia += strideA;
+		}
+	}
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = base;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.js
index dd4fbf154b3c..ab8fafd56de0 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.js
@@ -22,136 +22,8 @@
 
 // MODULES //
 
-var scopy = require( '@stdlib/blas/base/scopy' );
-
-
-// FUNCTIONS //
-
-/**
-* Calculates the forward difference of a single-precision floating-point strided array using alternative indexing semantics.
-*
-* @private
-* @param {PositiveInteger} N - number of indexed elements
-* @param {Float32Array} x - input array
-* @param {integer} strideX - stride length for `x`
-* @param {PositiveInteger} offsetX - starting index for `x`
-* @param {PositiveInteger} N1 - number of indexed elements of prepend
-* @param {Float32Array} prepend - prepend array
-* @param {integer} strideP - stride length for `prepend`
-* @param {PositiveInteger} offsetP - starting index for `prepend`
-* @param {PositiveInteger} N2 - number of indexed elements of append
-* @param {Float32Array} append - append array
-* @param {integer} strideA - stride length for `append`
-* @param {PositiveInteger} offsetA - starting index for `append`
-* @param {Float32Array} out - output array
-* @param {integer} strideOut - stride length for `out`
-* @param {PositiveInteger} offsetOut - starting index for `out`
-* @returns {Float32Array} output array
-*/
-function base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut ) {
-	var total;
-	var prev;
-	var curr;
-	var ix;
-	var io;
-	var ip;
-	var ia;
-	var i;
-
-	total = N + N1 + N2;
-	if ( total <= 1 ) {
-		return out;
-	}
-
-	if ( N1 === 0 && N2 === 0 ) {
-		ix = offsetX;
-		io = offsetOut;
-		prev = x[ ix ];
-		for ( i = 1; i < N; i++ ) {
-			ix += strideX;
-			curr = x[ ix ];
-			out[ io ] = curr - prev;
-			prev = curr;
-			io += strideOut;
-		}
-		return out;
-	}
-
-	// Prepend
-	if ( N1 > 0 ) {
-		io = offsetOut;
-		ip = offsetP;
-		prev = prepend[ ip ];
-		for ( i = 1; i < N1; i++ ) {
-			ip += strideP;
-			curr = prepend[ ip ];
-			out[ io ] = curr - prev;
-			prev = curr;
-			io += strideOut;
-		}
-		if ( N > 0 ) {
-			curr = x[ offsetX ];
-			out[ io ] = curr - prev;
-			prev = curr;
-			io += strideOut;
-		} else if ( N2 > 0 ) {
-			curr = append[ offsetA ];
-			out[ io ] = curr - prev;
-			prev = curr;
-			io += strideOut;
-		}
-	} else if ( N > 0 ) {
-		prev = x[ offsetX ];
-		io = offsetOut;
-	} else {
-		prev = append[ offsetA ];
-		io = offsetOut;
-	}
-
-	// x
-	if ( N > 0 ) {
-		ix = offsetX;
-		if ( N1 === 0 ) {
-			prev = x[ ix ];
-			ix += strideX;
-			for ( i = 1; i < N; i++ ) {
-				curr = x[ ix ];
-				out[ io ] = curr - prev;
-				prev = curr;
-				io += strideOut;
-				ix += strideX;
-			}
-		} else {
-			ix += strideX;
-			for ( i = 1; i < N; i++ ) {
-				curr = x[ ix ];
-				out[ io ] = curr - prev;
-				prev = curr;
-				io += strideOut;
-				ix += strideX;
-			}
-		}
-		if ( N2 > 0 ) {
-			curr = append[ offsetA ];
-			out[ io ] = curr - prev;
-			prev = curr;
-			io += strideOut;
-		}
-	}
-
-	// Append
-	if ( N2 > 0 ) {
-		ia = offsetA + strideA;
-		for ( i = 1; i < N2; i++ ) {
-			curr = append[ ia ];
-			out[ io ] = curr - prev;
-			prev = curr;
-			io += strideOut;
-			ia += strideA;
-		}
-	}
-	return out;
-}
+var scopy = require( '@stdlib/blas/base/scopy' ).ndarray;
+var base = require( './base.js' );
 
 
 // MAIN //
@@ -164,11 +36,11 @@ function base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append
 * @param {Float32Array} x - input array
 * @param {integer} strideX - stride length for `x`
 * @param {PositiveInteger} offsetX - starting index for `x`
-* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {PositiveInteger} N1 - number of indexed elements for `prepend`
 * @param {Float32Array} prepend - prepend array
 * @param {integer} strideP - stride length for `prepend`
 * @param {PositiveInteger} offsetP - starting index for `prepend`
-* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {PositiveInteger} N2 - number of indexed elements for `append`
 * @param {Float32Array} append - append array
 * @param {integer} strideA - stride length for `append`
 * @param {PositiveInteger} offsetA - starting index for `append`
@@ -201,44 +73,43 @@ function sdiff( N, k, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, ap
 	var i;
 
 	total = N + N1 + N2;
-	if ( total <= 1 ) {
-		return out;
-	}
 
-	// If k >= total number of elements, the k-th forward difference results in an empty array, so this function is a no-op.
-	if ( k >= total ) {
+	// If `k` is greater than or equal to the total number of elements, the k-th forward difference results in an empty array, so this function is a no-op...
+	if ( total <= 1 || k >= total ) {
 		return out;
 	}
-
+	// If `k` is equal to zero, there are no differences to compute, so we merely copy the various arrays into the output array...
 	if ( k === 0 ) {
 		// Copy `prepend` into output array:
-		scopy.ndarray( N1, prepend, strideP, offsetP, out, strideOut, offsetOut );
+		scopy( N1, prepend, strideP, offsetP, out, strideOut, offsetOut );
 
 		// Copy `x` into output array:
 		io = offsetOut + ( N1 * strideOut );
-		scopy.ndarray( N, x, strideX, offsetX, out, strideOut, io );
+		scopy( N, x, strideX, offsetX, out, strideOut, io );
 
 		// Copy `append` into output array:
 		io = offsetOut + ( ( N1 + N ) * strideOut );
-		scopy.ndarray( N2, append, strideA, offsetA, out, strideOut, io );
+		scopy( N2, append, strideA, offsetA, out, strideOut, io );
 
 		return out;
 	}
-
+	// If `k` is equal to one, we can compute the forward difference while writing directly to the output array...
 	if ( k === 1 ) {
 		base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut );
 		return out;
 	}
-
+	// Compute the first forward difference:
 	base( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, workspace, strideW, offsetW );
 
+	// Recursively compute the next forward differences...
 	n = total - 1;
-	for ( i = 1; i < k - 1; i++ ) {
+	for ( i = 1; i < k-1; i++ ) {
 		base( n, workspace, strideW, offsetW, 0, prepend, strideP, offsetP, 0, append, strideA, offsetA, workspace, strideW, offsetW );
 		n -= 1;
 	}
-
+	// For the last forward difference, ensure that results are written to the output array:
 	base( n, workspace, strideW, offsetW, 0, prepend, strideP, offsetP, 0, append, strideA, offsetA, out, strideOut, offsetOut );
+
 	return out;
 }
 
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.native.js
index 113c33ce6552..8dfc43b4b815 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.native.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/ndarray.native.js
@@ -28,18 +28,18 @@ var addon = require( './../src/addon.node' );
 // MAIN //
 
 /**
-* Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
+* Calculates the k-th discrete forward difference of a single-precision floating-point strided array using alternative indexing semantics.
 *
 * @param {PositiveInteger} N - number of indexed elements
 * @param {PositiveInteger} k - number of times to recursively compute differences
 * @param {Float32Array} x - input array
 * @param {integer} strideX - stride length for `x`
 * @param {PositiveInteger} offsetX - starting index for `x`
-* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {PositiveInteger} N1 - number of indexed elements for `prepend`
 * @param {Float32Array} prepend - prepend array
 * @param {integer} strideP - stride length for `prepend`
 * @param {PositiveInteger} offsetP - starting index for `prepend`
-* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {PositiveInteger} N2 - number of indexed elements for `append`
 * @param {Float32Array} append - append array
 * @param {integer} strideA - stride length for `append`
 * @param {PositiveInteger} offsetA - starting index for `append`
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.js
index 2792282d0f0f..82a1bcc44635 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.js
@@ -35,10 +35,10 @@ var ndarray = require( './ndarray.js' );
 * @param {PositiveInteger} k - number of times to recursively compute differences
 * @param {Float32Array} x - input array
 * @param {integer} strideX - stride length for `x`
-* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {PositiveInteger} N1 - number of indexed elements for `prepend`
 * @param {Float32Array} prepend - prepend array
 * @param {integer} strideP - stride length for `prepend`
-* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {PositiveInteger} N2 - number of indexed elements for `append`
 * @param {Float32Array} append - append array
 * @param {integer} strideA - stride length for `append`
 * @param {Float32Array} out - output array
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.native.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.native.js
index cb70f8cf692c..e025db9626d9 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.native.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/lib/sdiff.native.js
@@ -34,10 +34,10 @@ var addon = require( './../src/addon.node' );
 * @param {PositiveInteger} k - number of times to recursively compute differences
 * @param {Float32Array} x - input array
 * @param {integer} strideX - stride length for `x`
-* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {PositiveInteger} N1 - number of indexed elements for `prepend`
 * @param {Float32Array} prepend - prepend array
 * @param {integer} strideP - stride length for `prepend`
-* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {PositiveInteger} N2 - number of indexed elements for `append`
 * @param {Float32Array} append - append array
 * @param {integer} strideA - stride length for `append`
 * @param {Float32Array} out - output array
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/addon.c b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/addon.c
index 2b7f1dee233e..812efa08db47 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/addon.c
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/addon.c
@@ -43,11 +43,11 @@ static napi_value addon( napi_env env, napi_callback_info info ) {
 	STDLIB_NAPI_ARGV_INT64( env, strideOut, argv, 11 );
 	STDLIB_NAPI_ARGV_INT64( env, strideW, argv, 13 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 5 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 8 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Prepend, N1, strideP, argv, 5 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Append, N2, strideA, argv, 8 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N+N1+N2-k, strideOut, argv, 10 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Workspace, N+N1+N2-1, strideW, argv, 12 );
-	API_SUFFIX(stdlib_strided_sdiff)( N, k, X, strideX, N1, prepend, strideP, N2, append, strideA, Out, strideOut, Workspace, strideW );
+	API_SUFFIX(stdlib_strided_sdiff)( N, k, X, strideX, N1, Prepend, strideP, N2, Append, strideA, Out, strideOut, Workspace, strideW );
 	return NULL;
 }
 
@@ -75,11 +75,11 @@ static napi_value addon_method( napi_env env, napi_callback_info info ) {
 	STDLIB_NAPI_ARGV_INT64( env, strideW, argv, 17 );
 	STDLIB_NAPI_ARGV_INT64( env, offsetW, argv, 18 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 6 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 10 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Prepend, N1, strideP, argv, 6 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Append, N2, strideA, argv, 10 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N+N1+N2-k, strideOut, argv, 13 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Workspace, N+N1+N2-1, strideW, argv, 16 );
-	API_SUFFIX(stdlib_strided_sdiff_ndarray)( N, k, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, Out, strideOut, offsetOut, Workspace, strideW, offsetW );
+	API_SUFFIX(stdlib_strided_sdiff_ndarray)( N, k, X, strideX, offsetX, N1, Prepend, strideP, offsetP, N2, Append, strideA, offsetA, Out, strideOut, offsetOut, Workspace, strideW, offsetW );
 	return NULL;
 }
 
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/main.c
index d265a72a2f28..8cd669d7f979 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/main.c
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/src/main.c
@@ -17,62 +17,35 @@
 */
 
 #include "stdlib/blas/ext/base/sdiff.h"
-#include "stdlib/blas/base/shared.h"
 #include "stdlib/strided/base/stride2offset.h"
 #include "stdlib/blas/base/scopy.h"
-
-/**
-* Calculates the k-th discrete forward differences of a single-precision floating-point strided array.
-*
-* @param N         number of indexed elements
-* @param k         number of times to recursively compute differences
-* @param X         input array
-* @param strideX   stride length for X
-* @param N1        number of indexed elements of prepend
-* @param prepend   prepend array
-* @param strideP   stride length for prepend
-* @param N2        number of indexed elements of append
-* @param append    append array
-* @param strideA   stride length for append
-* @param Out       Output array
-* @param strideOut stride length for Out
-* @param Workspace Workspace array
-* @param strideW   stride length for Workspace
-*/
-void API_SUFFIX(stdlib_strided_sdiff)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, float *Out, const CBLAS_INT strideOut, float *Workspace, const CBLAS_INT strideW ) {
-	CBLAS_INT ox = stdlib_strided_stride2offset( N, strideX );
-	CBLAS_INT op = stdlib_strided_stride2offset( N1, strideP );
-	CBLAS_INT oa = stdlib_strided_stride2offset( N2, strideA );
-	CBLAS_INT oo = stdlib_strided_stride2offset( N+N1+N2-k, strideOut );
-	CBLAS_INT ow = stdlib_strided_stride2offset( N+N1+N2-1, strideW );
-	API_SUFFIX(stdlib_strided_sdiff_ndarray)( N, k, X, strideX, ox, N1, prepend, strideP, op, N2, append, strideA, oa, Out, strideOut, oo, Workspace, strideW, ow );
-}
+#include "stdlib/blas/base/shared.h"
 
 /**
 * Calculates the forward difference of a single-precision floating-point strided array using alternative indexing semantics.
 *
-* @param N        number of indexed elements
-* @param X        input array
-* @param strideX  stride length for X
-* @param offsetX  starting index for X
-* @param N1       number of indexed elements of prepend
-* @param prepend  prepend array
-* @param strideP  stride length for prepend
-* @param offsetP  starting index for prepend
-* @param N2       number of indexed elements of append
-* @param append   append array
-* @param strideA  stride length for append
-* @param offsetA  starting index for append
-* @param Out      Output array
-* @param strideOut stride length for Out
-* @param offsetOut starting index for Out
+* @param N          number of indexed elements
+* @param X          input array
+* @param strideX    stride length for X
+* @param offsetX    starting index for X
+* @param N1         number of indexed elements for Prepend
+* @param Prepend    prepend array
+* @param strideP    stride length for Prepend
+* @param offsetP    starting index for Prepend
+* @param N2         number of indexed elements for Append
+* @param Append     append array
+* @param strideA    stride length for Append
+* @param offsetA    starting index for Append
+* @param Out        output array
+* @param strideOut  stride length for Out
+* @param offsetOut  starting index for Out
 */
-static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut ) {
+static void stdlib_strided_internal_sdiff_ndarray( const CBLAS_INT N, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *Prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *Append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut ) {
 	CBLAS_INT total;
 	CBLAS_INT ix;
-	CBLAS_INT io;
 	CBLAS_INT ip;
 	CBLAS_INT ia;
+	CBLAS_INT io;
 	CBLAS_INT i;
 	float prev;
 	float curr;
@@ -81,7 +54,7 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 	if ( total <= 1 ) {
 		return;
 	}
-
+	// Calculate the forward difference over the input array...
 	if ( N1 == 0 && N2 == 0 ) {
 		ix = offsetX;
 		io = offsetOut;
@@ -95,15 +68,14 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 		}
 		return;
 	}
-
-	// Prepend
+	// Calculate the forward difference over the list of prepended values...
 	if ( N1 > 0 ) {
 		io = offsetOut;
 		ip = offsetP;
-		prev = prepend[ ip ];
+		prev = Prepend[ ip ];
 		for ( i = 1; i < N1; i++ ) {
 			ip += strideP;
-			curr = prepend[ ip ];
+			curr = Prepend[ ip ];
 			Out[ io ] = curr - prev;
 			prev = curr;
 			io += strideOut;
@@ -114,7 +86,7 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 			prev = curr;
 			io += strideOut;
 		} else if ( N2 > 0 ) {
-			curr = append[ offsetA ];
+			curr = Append[ offsetA ];
 			Out[ io ] = curr - prev;
 			prev = curr;
 			io += strideOut;
@@ -123,11 +95,10 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 		prev = X[ offsetX ];
 		io = offsetOut;
 	} else {
-		prev = append[ offsetA ];
+		prev = Append[ offsetA ];
 		io = offsetOut;
 	}
-
-	// X
+	// Calculate the forward difference over the input array...
 	if ( N > 0 ) {
 		ix = offsetX;
 		if ( N1 == 0 ) {
@@ -151,85 +122,118 @@ static void stdlib_strided_base_sdiff_ndarray( const CBLAS_INT N, const float *X
 			}
 		}
 		if ( N2 > 0 ) {
-			curr = append[ offsetA ];
+			curr = Append[ offsetA ];
 			Out[ io ] = curr - prev;
 			prev = curr;
 			io += strideOut;
 		}
 	}
-
-	// Append
+	// Calculate the forward difference over the list of appended values...
 	if ( N2 > 0 ) {
 		ia = offsetA + strideA;
 		for ( i = 1; i < N2; i++ ) {
-			curr = append[ ia ];
+			curr = Append[ ia ];
 			Out[ io ] = curr - prev;
 			prev = curr;
 			io += strideOut;
 			ia += strideA;
 		}
 	}
+	return;
+}
+
+/**
+* Calculates the k-th discrete forward difference of a single-precision floating-point strided array.
+*
+* @param N          number of indexed elements
+* @param k          number of times to recursively compute differences
+* @param X          input array
+* @param strideX    stride length for X
+* @param N1         number of indexed elements for Prepend
+* @param Prepend    prepend array
+* @param strideP    stride length for Prepend
+* @param N2         number of indexed elements for Append
+* @param Append     append array
+* @param strideA    stride length for Append
+* @param Out        output array
+* @param strideOut  stride length for Out
+* @param Workspace  workspace array
+* @param strideW    stride length for workspace
+*/
+void API_SUFFIX(stdlib_strided_sdiff)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *Prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *Append, const CBLAS_INT strideA, float *Out, const CBLAS_INT strideOut, float *Workspace, const CBLAS_INT strideW ) {
+	const CBLAS_INT ox = stdlib_strided_stride2offset( N, strideX );
+	const CBLAS_INT op = stdlib_strided_stride2offset( N1, strideP );
+	const CBLAS_INT oa = stdlib_strided_stride2offset( N2, strideA );
+	const CBLAS_INT oo = stdlib_strided_stride2offset( N+N1+N2-k, strideOut );
+	const CBLAS_INT ow = stdlib_strided_stride2offset( N+N1+N2-1, strideW );
+	API_SUFFIX(stdlib_strided_sdiff_ndarray)( N, k, X, strideX, ox, N1, Prepend, strideP, op, N2, Append, strideA, oa, Out, strideOut, oo, Workspace, strideW, ow );
 }
 
 /**
-* Calculates the k-th discrete forward differences of a single-precision floating-point strided array using alternative indexing semantics.
+* Calculates the k-th discrete forward difference of a single-precision floating-point strided array using alternative indexing semantics.
 *
-* @param N         number of indexed elements
-* @param k         number of times to recursively compute differences
-* @param X         input array
-* @param strideX   stride length for X
-* @param offsetX   starting index for X
-* @param N1        number of indexed elements of prepend
-* @param prepend   prepend array
-* @param strideP   stride length for prepend
-* @param offsetP   starting index for prepend
-* @param N2        number of indexed elements of append
-* @param append    append array
-* @param strideA   stride length for append
-* @param offsetA   starting index for append
-* @param Out       Output array
-* @param strideOut stride length for Out
-* @param offsetOut starting index for Out
-* @param Workspace Workspace array
-* @param strideW   stride length for Workspace
-* @param offsetW   starting index for Workspace
+* @param N          number of indexed elements
+* @param k          number of times to recursively compute differences
+* @param X          input array
+* @param strideX    stride length for X
+* @param offsetX    starting index for X
+* @param N1         number of indexed elements for Prepend
+* @param Prepend    prepend array
+* @param strideP    stride length for Prepend
+* @param offsetP    starting index for Prepend
+* @param N2         number of indexed elements for Append
+* @param Append     append array
+* @param strideA    stride length for Append
+* @param offsetA    starting index for Append
+* @param Out        output array
+* @param strideOut  stride length for Out
+* @param offsetOut  starting index for Out
+* @param Workspace  workspace array
+* @param strideW    stride length for Workspace
+* @param offsetW    starting index for Workspace
 */
-void API_SUFFIX(stdlib_strided_sdiff_ndarray)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut, float *Workspace, const CBLAS_INT strideW, const CBLAS_INT offsetW ) {
+void API_SUFFIX(stdlib_strided_sdiff_ndarray)( const CBLAS_INT N, const CBLAS_INT k, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *Prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *Append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut, float *Workspace, const CBLAS_INT strideW, const CBLAS_INT offsetW ) {
 	CBLAS_INT total;
 	CBLAS_INT io;
 	CBLAS_INT n;
 	CBLAS_INT i;
 
 	total = N + N1 + N2;
-	if ( total <= 1 ) {
-		return;
-	}
-	if ( k >= total ) {
+
+	// If k >= total number of elements, the k-th forward difference results in an empty array, so this function is a no-op...
+	if ( total <= 1 || k >= total ) {
 		return;
 	}
+	// If `k` is equal to zero, there are no differences to compute, so we merely copy the various arrays into the output array...
 	if ( k == 0 ) {
-		// Copy `prepend` into Output array:
-		c_scopy_ndarray( N1, prepend, strideP, offsetP, Out, strideOut, offsetOut );
+		// Copy `Prepend` into output array:
+		c_scopy_ndarray( N1, Prepend, strideP, offsetP, Out, strideOut, offsetOut );
 
-		// Copy `X` into Output array:
+		// Copy `X` into output array:
 		io = offsetOut + ( N1 * strideOut );
 		c_scopy_ndarray( N, X, strideX, offsetX, Out, strideOut, io );
 
-		// Copy `append` into Output array:
+		// Copy `Append` into output array:
 		io = offsetOut + ( ( N1 + N ) * strideOut );
-		c_scopy_ndarray( N2, append, strideA, offsetA, Out, strideOut, io );
+		c_scopy_ndarray( N2, Append, strideA, offsetA, Out, strideOut, io );
+
 		return;
 	}
+	// If `k` is equal to one, we can compute the forward difference while writing directly to the output array...
 	if ( k == 1 ) {
-		stdlib_strided_base_sdiff_ndarray( N, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, Out, strideOut, offsetOut );
+		stdlib_strided_internal_sdiff_ndarray( N, X, strideX, offsetX, N1, Prepend, strideP, offsetP, N2, Append, strideA, offsetA, Out, strideOut, offsetOut );
 		return;
 	}
-	stdlib_strided_base_sdiff_ndarray( N, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, Workspace, strideW, offsetW );
+	// Compute the first forward difference:
+	stdlib_strided_internal_sdiff_ndarray( N, X, strideX, offsetX, N1, Prepend, strideP, offsetP, N2, Append, strideA, offsetA, Workspace, strideW, offsetW );
 
+	// Recursively compute the next forward differences...
 	n = total - 1;
 	for ( i = 1; i < k - 1; i++ ) {
-		stdlib_strided_base_sdiff_ndarray( n, Workspace, strideW, offsetW, 0, prepend, strideP, offsetP, 0, append, strideA, offsetA, Workspace, strideW, offsetW );
+		stdlib_strided_internal_sdiff_ndarray( n, Workspace, strideW, offsetW, 0, Prepend, strideP, offsetP, 0, Append, strideA, offsetA, Workspace, strideW, offsetW );
 		n -= 1;
 	}
-	stdlib_strided_base_sdiff_ndarray( n, Workspace, strideW, offsetW, 0, prepend, strideP, offsetP, 0, append, strideA, offsetA, Out, strideOut, offsetOut );
+	// For the last forward difference, ensure that results are written to the output array:
+	stdlib_strided_internal_sdiff_ndarray( n, Workspace, strideW, offsetW, 0, Prepend, strideP, offsetP, 0, Append, strideA, offsetA, Out, strideOut, offsetOut );
+	return;
 }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.js
index 2baa802ca7f0..a179876ed699 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.js
@@ -21,9 +21,18 @@
 // MODULES //
 
 var tape = require( 'tape' );
+var proxyquire = require( 'proxyquire' );
+var IS_BROWSER = require( '@stdlib/assert/is-browser' );
 var sdiff = require( './../lib' );
 
 
+// VARIABLES //
+
+var opts = {
+	'skip': IS_BROWSER
+};
+
+
 // TESTS //
 
 tape( 'main export is a function', function test( t ) {
@@ -32,7 +41,42 @@ tape( 'main export is a function', function test( t ) {
 	t.end();
 });
 
-tape( 'attached to the main export is an `ndarray` method', function test( t ) {
-	t.strictEqual( typeof sdiff.ndarray, 'function', 'has method' );
+tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) {
+	t.strictEqual( typeof sdiff.ndarray, 'function', 'method is a function' );
+	t.end();
+});
+
+tape( 'if a native implementation is available, the main export is the native implementation', opts, function test( t ) {
+	var sdiff = proxyquire( './../lib', {
+		'@stdlib/utils/try-require': tryRequire
+	});
+
+	t.strictEqual( sdiff, mock, 'returns expected value' );
+	t.end();
+
+	function tryRequire() {
+		return mock;
+	}
+
+	function mock() {
+		// Mock...
+	}
+});
+
+tape( 'if a native implementation is not available, the main export is a JavaScript implementation', opts, function test( t ) {
+	var sdiff;
+	var main;
+
+	main = require( './../lib/sdiff.js' );
+
+	sdiff = proxyquire( './../lib', {
+		'@stdlib/utils/try-require': tryRequire
+	});
+
+	t.strictEqual( sdiff, main, 'returns expected value' );
 	t.end();
+
+	function tryRequire() {
+		return new Error( 'Cannot find module' );
+	}
 });
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.ndarray.js
index 4b47fab22dbd..12ae8ae0e3d3 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.ndarray.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sdiff/test/test.ndarray.js
@@ -129,7 +129,6 @@ tape( 'the function returns the output array unchanged for trivial cases', funct
 	expected = new Float32Array( [ 0.0, 0.0 ] );
 	t.deepEqual( out, expected, 'returns expected value' );
 
-	// Single element (total <= 1 in base):
 	x = new Float32Array( [ 5.0 ] );
 	p = new Float32Array( 0 );
 	a = new Float32Array( 0 );