From f340d6e2b47750eb9a3233934a869e62229b0de7 Mon Sep 17 00:00:00 2001
From: headlessNode <harriskhan047@outlook.com>
Date: Fri, 13 Mar 2026 03:37:13 +0500
Subject: [PATCH 1/3] feat: add blas/ext/base/sediff

---
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: passed
  - task: lint_repl_help
    status: passed
  - task: lint_javascript_src
    status: passed
  - task: lint_javascript_cli
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    status: passed
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    status: passed
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  - task: lint_python
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  - task: lint_c_src
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---
---
 .../@stdlib/blas/ext/base/sediff/README.md    | 368 ++++++++++++
 .../ext/base/sediff/benchmark/benchmark.js    | 120 ++++
 .../base/sediff/benchmark/benchmark.native.js | 125 +++++
 .../sediff/benchmark/benchmark.ndarray.js     | 120 ++++
 .../benchmark/benchmark.ndarray.native.js     | 125 +++++
 .../blas/ext/base/sediff/benchmark/c/Makefile | 146 +++++
 .../sediff/benchmark/c/benchmark.length.c     | 251 +++++++++
 .../@stdlib/blas/ext/base/sediff/binding.gyp  | 265 +++++++++
 .../blas/ext/base/sediff/docs/repl.txt        | 162 ++++++
 .../ext/base/sediff/docs/types/index.d.ts     | 139 +++++
 .../blas/ext/base/sediff/docs/types/test.ts   | 530 ++++++++++++++++++
 .../blas/ext/base/sediff/examples/c/Makefile  | 146 +++++
 .../blas/ext/base/sediff/examples/c/example.c |  42 ++
 .../blas/ext/base/sediff/examples/index.js    |  43 ++
 .../@stdlib/blas/ext/base/sediff/include.gypi |  53 ++
 .../include/stdlib/blas/ext/base/sediff.h     |  45 ++
 .../@stdlib/blas/ext/base/sediff/lib/index.js |  64 +++
 .../@stdlib/blas/ext/base/sediff/lib/main.js  |  35 ++
 .../blas/ext/base/sediff/lib/native.js        |  35 ++
 .../blas/ext/base/sediff/lib/ndarray.js       | 100 ++++
 .../ext/base/sediff/lib/ndarray.native.js     |  71 +++
 .../blas/ext/base/sediff/lib/sediff.js        |  72 +++
 .../blas/ext/base/sediff/lib/sediff.native.js |  67 +++
 .../blas/ext/base/sediff/manifest.json        |  81 +++
 .../@stdlib/blas/ext/base/sediff/package.json |  74 +++
 .../@stdlib/blas/ext/base/sediff/src/Makefile |  70 +++
 .../@stdlib/blas/ext/base/sediff/src/addon.c  |  79 +++
 .../@stdlib/blas/ext/base/sediff/src/main.c   |  98 ++++
 .../@stdlib/blas/ext/base/sediff/test/test.js |  82 +++
 .../blas/ext/base/sediff/test/test.ndarray.js | 193 +++++++
 .../base/sediff/test/test.ndarray.native.js   | 202 +++++++
 .../blas/ext/base/sediff/test/test.sediff.js  | 165 ++++++
 .../base/sediff/test/test.sediff.native.js    | 174 ++++++
 33 files changed, 4342 insertions(+)
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/README.md
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.native.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.native.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/Makefile
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/benchmark.length.c
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/binding.gyp
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/test.ts
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/Makefile
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/example.c
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/examples/index.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/include.gypi
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/include/stdlib/blas/ext/base/sediff.h
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/lib/index.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/lib/main.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/lib/native.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/manifest.json
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/package.json
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/src/Makefile
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/src/addon.c
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.native.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.native.js

diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md b/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md
new file mode 100644
index 000000000000..723b25a2d58e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md
@@ -0,0 +1,368 @@
+<!--
+
+@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.
+
+-->
+
+# sediff
+
+> Calculate the differences between consecutive elements of a single-precision floating-point strided array.
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var sediff = require( '@stdlib/blas/ext/base/sediff' );
+```
+
+<!-- lint disable maximum-heading-length -->
+
+#### sediff( N, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut )
+
+Calculates the differences between consecutive elements 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 );
+
+sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+
+console.log( out );
+// out => <Float32Array>[ 1.0, 2.0, 2.0, 2.0, 2.0, 11.0 ]
+```
+
+The function has the following parameters:
+
+-   **N**: number of indexed elements.
+-   **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 after computing differences.
+-   **strideP**: stride length for `prepend`.
+-   **N2**: number of elements to `append`.
+-   **append**: a [`Float32Array`][@stdlib/array/float32] containing values to append after computing differences.
+-   **strideA**: stride length for `append`.
+-   **out**: output [`Float32Array`][@stdlib/array/float32]. Must have `N + N1 + N2 - 1` elements.
+-   **strideOut**: stride length for `out`.
+
+The `N` and stride parameters determine which elements in the strided array are accessed at runtime. For example, to compute 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 );
+
+sediff( 3, x, 2, 1, p, 1, 1, a, 1, out, 1 );
+
+console.log( out );
+// out => <Float32Array>[ 1.0, 4.0, 4.0, 11.0 ]
+```
+
+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 );
+
+sediff( x1.length, x1, 1, 1, p, 1, 1, a, 1, out, 1 );
+
+console.log( out );
+// out => <Float32Array>[ 1.0, 2.0, 2.0, 2.0, 11.0 ]
+```
+
+<!-- lint disable maximum-heading-length -->
+
+#### sediff.ndarray( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut )
+
+Calculates the differences between consecutive elements 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 );
+
+sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+
+console.log( out );
+// out => <Float32Array>[ 1.0, 2.0, 2.0, 2.0, 2.0, 11.0 ]
+```
+
+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`.
+
+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 );
+
+sediff.ndarray( 3, x, 1, x.length-3, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+
+console.log( out );
+// out => <Float32Array>[ 1.0, 2.0, 2.0, 11.0 ]
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="notes">
+
+## Notes
+
+-   If the sum of `N`, `N1`, and `N2` is less than or equal to `1`, 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 sediff = require( '@stdlib/blas/ext/base/sediff' );
+
+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( 13 );
+
+sediff( x.length, x, 1, 2, p, 1, 2, a, 1, out, 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/sediff.h"
+```
+
+<!-- lint disable maximum-heading-length -->
+
+#### stdlib_strided_sediff( N, \*X, strideX, N1, \*prepend, strideP, N2, \*append, strideA, \*Out, strideOut )
+
+Calculates the differences between consecutive elements 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 };
+
+stdlib_strided_sediff( 5, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+```
+
+The function accepts the following arguments:
+
+-   **N**: `[in] CBLAS_INT` number of indexed elements.
+-   **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 after 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 after computing differences.
+-   **strideA**: `[in] CBLAS_INT` stride length for `append`.
+-   **Out**: `[inout] float*` output array. Must have `N + N1 + N2 - 1` elements.
+-   **strideOut**: `[in] CBLAS_INT` stride length for `Out`.
+
+```c
+void stdlib_strided_sediff( const CBLAS_INT N, 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 );
+```
+
+<!-- lint disable maximum-heading-length -->
+
+#### stdlib_strided_sediff_ndarray( N, \*X, strideX, offsetX, N1, \*prepend, strideP, offsetP, N2, \*append, strideA, offsetA, \*Out, strideOut, offsetOut )
+
+Calculates the differences between consecutive elements 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 };
+
+stdlib_strided_sediff_ndarray( 5, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+```
+
+The function accepts the following arguments:
+
+-   **N**: `[in] CBLAS_INT` number of indexed elements.
+-   **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 after 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 after 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 - 1` elements.
+-   **strideOut**: `[in] CBLAS_INT` stride length for `Out`.
+-   **offsetOut**: `[in] CBLAS_INT` starting index for `Out`.
+
+```c
+void stdlib_strided_sediff_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 );
+```
+
+</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/sediff.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, 0.0f, 0.0f };
+
+    // Compute forward differences:
+    stdlib_strided_sediff( 8, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+
+    // Print the result:
+    for ( int i = 0; i < 9; 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/sediff/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.js
new file mode 100644
index 000000000000..faf19a81de59
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.js
@@ -0,0 +1,120 @@
+/**
+* @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 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' );
+var pkg = require( './../package.json' ).name;
+var sediff = require( './../lib/sediff.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 o;
+	var N;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	ol = N + N1 + N2 - 1;
+
+	x = uniform( N, -100, 100, options );
+	p = uniform( N1, -100, 100, options );
+	a = uniform( N2, -100, 100, options );
+	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++ ) {
+			sediff( N, x, 1, N1, p, 1, N2, a, 1, o, 1 );
+			if ( isnanf( o[ i%ol ] ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnanf( 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/sediff/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..35a399053c05
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.native.js
@@ -0,0 +1,125 @@
+/**
+* @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 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' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'float32'
+};
+var sediff = tryRequire( resolve( __dirname, './../lib/sediff.native.js' ) );
+var opts = {
+	'skip': ( sediff 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 o;
+	var N;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	ol = N + N1 + N2 - 1;
+
+	x = uniform( N, -100, 100, options );
+	p = uniform( N1, -100, 100, options );
+	a = uniform( N2, -100, 100, options );
+	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++ ) {
+			sediff( N, x, 1, N1, p, 1, N2, a, 1, o, 1 );
+			if ( isnanf( o[ i%ol ] ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnanf( 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/sediff/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..c3c1baf7d37b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.js
@@ -0,0 +1,120 @@
+/**
+* @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 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' );
+var pkg = require( './../package.json' ).name;
+var sediff = 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 o;
+	var N;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	ol = N + N1 + N2 - 1;
+
+	x = uniform( N, -100, 100, options );
+	p = uniform( N1, -100, 100, options );
+	a = uniform( N2, -100, 100, options );
+	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++ ) {
+			sediff( N, x, 1, 0, N1, p, 1, 0, N2, a, 1, 0, o, 1, 0 );
+			if ( isnanf( o[ i%ol ] ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnanf( 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/sediff/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.native.js
new file mode 100644
index 000000000000..92a8982f632c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.native.js
@@ -0,0 +1,125 @@
+/**
+* @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 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' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'float32'
+};
+var sediff = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+	'skip': ( sediff 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 o;
+	var N;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	ol = N + N1 + N2 - 1;
+
+	x = uniform( N, -100, 100, options );
+	p = uniform( N1, -100, 100, options );
+	a = uniform( N2, -100, 100, options );
+	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++ ) {
+			sediff( N, x, 1, 0, N1, p, 1, 0, N2, a, 1, 0, o, 1, 0 );
+			if ( isnanf( o[ i%ol ] ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnanf( 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/sediff/benchmark/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/Makefile
new file mode 100644
index 000000000000..0756dc7da20a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @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
+
+# 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/sediff/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/benchmark.length.c
new file mode 100644
index 000000000000..59e4414816ac
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/benchmark.length.c
@@ -0,0 +1,251 @@
+/**
+* @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/sediff.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <time.h>
+#include <sys/time.h>
+
+#define NAME "sediff"
+#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;
+	double t;
+	int ol;
+	int N1;
+	int N2;
+	int N;
+	int i;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	ol = 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;
+	}
+
+	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_sediff( N, x, 1, N1, p, 1, N2, a, 1, o, 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( 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;
+	double t;
+	int ol;
+	int N1;
+	int N2;
+	int N;
+	int i;
+
+	N = len;
+	N1 = 1;
+	N2 = 1;
+	ol = 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;
+	}
+
+	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_sediff_ndarray( N, x, 1, 0, N1, p, 1, 0, N2, a, 1, 0, o, 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( 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::native::%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::native::%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/sediff/binding.gyp b/lib/node_modules/@stdlib/blas/ext/base/sediff/binding.gyp
new file mode 100644
index 000000000000..60dce9d0b31a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/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/sediff/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt
new file mode 100644
index 000000000000..e4f60d7f39e2
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt
@@ -0,0 +1,162 @@
+{{alias}}( N, x, sx, N1, p, sp, N2, a, sa, out, so )
+    Calculates the differences between consecutive elements 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 the sum of `N`, `N1`, and `N2` is less than or equal to `1`, the function
+    returns the output array unchanged.
+
+    Parameters
+    ----------
+    N: integer
+        Number of indexed elements.
+
+    x: Float32Array
+        Input array.
+
+    sx: integer
+        Stride length for `x`.
+
+    N1: integer
+        Number of elements to `prepend`.
+
+    p: Float32Array
+        Array containing values to prepend after computing differences.
+
+    sp: integer
+        Stride length for `prepend`.
+
+    N2: integer
+        Number of elements to `append`.
+
+    a: Float32Array
+        Array containing values to append after computing differences.
+
+    sa: integer
+        Stride length for `append`.
+
+    out: Float32Array
+        Output array.
+
+    so: integer
+        Stride length for `out`.
+
+    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 );
+    > {{alias}}( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 )
+    <Float32Array>[ 0.0, -3.0, 4.0, 3.0 ]
+
+    // 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 );
+    > {{alias}}( 3, x, 2, 1, p, 1, 1, a, 1, out, 1 )
+    <Float32Array>[ 1.0, 4.0, 4.0, 11.0 ]
+
+    // 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 );
+    > {{alias}}( x1.length, x1, 1, 1, p, 1, 1, a, 1, out, 1 )
+    <Float32Array>[ 1.0, 2.0, 2.0, 2.0, 11.0 ]
+
+
+{{alias}}.ndarray( N, x, sx, ox, N1, p, sp, op, N2, a, sa, oa, out, so, oo )
+    Calculates the differences between consecutive elements 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.
+
+    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 after 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 after 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`.
+
+    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 );
+    > {{alias}}.ndarray( 3, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 )
+    <Float32Array>[ 0.0, -3.0, 4.0, 3.0 ]
+
+    // 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 );
+    > {{alias}}.ndarray( 2, x, 1, 1, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 )
+    <Float32Array>[ 0.0, 4.0, 3.0 ]
+
+    See Also
+    --------
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts
new file mode 100644
index 000000000000..9af60cce3cb6
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts
@@ -0,0 +1,139 @@
+/*
+* @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 `sediff`.
+*/
+interface Routine {
+	/**
+	* Calculates the differences between consecutive elements of a single-precision floating-point strided array.
+	*
+	* @param N - number of indexed elements
+	* @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`
+	* @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( 6 );
+	*
+	* sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+	*
+	* console.log( out );
+	* // out => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+	*/
+	( N: number, x: Float32Array, strideX: number, N1: number, prepend: Float32Array, strideP: number, N2: number, append: Float32Array, strideA: number, out: Float32Array, strideOut: number ): Float32Array;
+
+	/**
+	* Calculates the differences between consecutive elements 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`
+	* @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( 6 );
+	*
+	* sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+	*
+	* console.log( out );
+	* // out => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+	*/
+	ndarray( N: 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 ): Float32Array;
+}
+
+/**
+* Calculates the differences between consecutive elements of a single-precision floating-point strided array.
+*
+* @param N - number of indexed elements
+* @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`
+* @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( 6 );
+*
+* sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*
+* @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( 6 );
+*
+* sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+declare var sediff: Routine;
+
+
+// EXPORTS //
+
+export = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/test.ts
new file mode 100644
index 000000000000..f19831b974d7
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/test.ts
@@ -0,0 +1,530 @@
+/*
+* @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 sediff = 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 );
+
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 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 );
+
+	sediff( '10', x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( true, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( false, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( null, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( undefined, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( [], x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( {}, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( ( x: number ): number => x, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a Float32Array...
+{
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+
+	sediff( 10, 10, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( 10, '10', 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( 10, true, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( 10, false, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( 10, null, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( 10, undefined, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( 10, [], 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( 10, {}, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( 10, ( x: number ): number => x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third 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 );
+
+	sediff( x.length, x, '10', 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, true, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, false, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, null, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, undefined, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, [], 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, {}, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, ( x: number ): number => x, 1, p, 1, 1, a, 1, out, 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 );
+
+	sediff( x.length, x, 1, '10', p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, true, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, false, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, null, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, undefined, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, [], p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, {}, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, ( x: number ): number => x, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+
+	sediff( x.length, x, 1, 1, 10, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, '10', 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, true, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, false, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, null, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, undefined, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, [], 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, {}, 1, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, ( x: number ): number => x, 1, 1, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function 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 );
+
+	sediff( x.length, x, 1, 1, p, '10', 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, true, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, false, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, null, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, undefined, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, [], 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, {}, 1, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, ( x: number ): number => x, 1, a, 1, out, 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 );
+
+	sediff( x.length, x, 1, 1, p, 1, '10', a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, true, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, false, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, null, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, undefined, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, [], a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, {}, a, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, ( x: number ): number => x, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eighth argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+
+	sediff( x.length, x, 1, 1, p, 1, 1, 10, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, '10', 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, true, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, false, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, null, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, undefined, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, [], 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, {}, 1, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, ( x: number ): number => x, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function 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 );
+
+	sediff( x.length, x, 1, 1, p, 1, 1, a, '10', out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, true, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, false, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, null, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, undefined, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, [], out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, {}, out, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, ( x: number ): number => x, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a tenth argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, 10, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, '10', 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, true, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, false, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, null, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, undefined, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, [], 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, {}, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, ( x: number ): number => x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eleventh 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 );
+
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, '10' ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, true ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, false ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, null ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, undefined ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, [] ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, {} ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, ( 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 );
+
+	sediff(); // $ExpectError
+	sediff( x.length ); // $ExpectError
+	sediff( x.length, x ); // $ExpectError
+	sediff( x.length, x, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1, 10 ); // $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 );
+
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 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 );
+
+	sediff.ndarray( '10', x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( true, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( false, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( null, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( undefined, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( [], x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( {}, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( ( x: number ): number => x, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a Float32Array...
+{
+	const p = new Float32Array( 1 );
+	const a = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+
+	sediff.ndarray( 10, 10, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( 10, '10', 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( 10, true, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( 10, false, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( 10, null, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( 10, undefined, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( 10, [], 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( 10, {}, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( 10, ( x: number ): number => x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a third 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 );
+
+	sediff.ndarray( x.length, x, '10', 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, true, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, false, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, null, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, undefined, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, [], 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, {}, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, ( x: number ): number => x, 0, 1, p, 1, 0, 1, a, 1, 0, out, 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 );
+
+	sediff.ndarray( x.length, x, 1, '10', 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, true, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, false, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, null, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, undefined, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, [], 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, {}, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, ( x: number ): number => x, 1, p, 1, 0, 1, a, 1, 0, out, 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 );
+
+	sediff.ndarray( x.length, x, 1, 0, '10', p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, true, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, false, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, null, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, undefined, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, [], p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, {}, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, ( x: number ): number => x, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method 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 );
+
+	sediff.ndarray( x.length, x, 1, 0, 1, 10, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, '10', 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, true, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, false, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, null, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, undefined, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, [], 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, {}, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, ( x: number ): number => x, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method 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 );
+
+	sediff.ndarray( x.length, x, 1, 0, 1, p, '10', 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, true, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, false, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, null, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, undefined, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, [], 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, {}, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, ( x: number ): number => x, 0, 1, a, 1, 0, out, 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 );
+
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, '10', 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, true, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, false, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, null, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, undefined, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, [], 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, {}, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, ( x: number ): number => x, 1, a, 1, 0, out, 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 );
+
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, '10', a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, true, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, false, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, null, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, undefined, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, [], a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, {}, a, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, ( x: number ): number => x, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a tenth argument which is not a Float32Array...
+{
+	const x = new Float32Array( 10 );
+	const p = new Float32Array( 1 );
+	const out = new Float32Array( 11 );
+
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, 10, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, '10', 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, true, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, false, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, null, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, undefined, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, [], 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, {}, 1, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, ( x: number ): number => x, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eleventh 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 );
+
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, '10', 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, true, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, false, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, null, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, undefined, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, [], 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, {}, 0, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, ( x: number ): number => x, 0, out, 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 );
+
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, '10', out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, true, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, false, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, null, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, undefined, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, [], out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, {}, out, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, ( x: number ): number => x, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method 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 );
+
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, 10, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, '10', 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, true, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, false, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, null, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, undefined, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, [], 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, {}, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, ( x: number ): number => x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method 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 );
+
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, '10', 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, true, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, false, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, null, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, undefined, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, [], 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, {}, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, ( x: number ): number => x, 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 );
+
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, '10' ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, true ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, false ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, null ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, undefined ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, [] ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, {} ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 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 );
+
+	sediff.ndarray(); // $ExpectError
+	sediff.ndarray( x.length ); // $ExpectError
+	sediff.ndarray( x.length, x ); // $ExpectError
+	sediff.ndarray( x.length, x, 1 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, 10 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/Makefile
new file mode 100644
index 000000000000..c8f8e9a1517b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @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
+
+# 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/sediff/examples/c/example.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/example.c
new file mode 100644
index 000000000000..bdfeb5d6ef19
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/example.c
@@ -0,0 +1,42 @@
+/**
+* @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/sediff.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, 0.0f, 0.0f };
+
+	// Compute forward differences:
+	stdlib_strided_sediff( 8, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+
+	// Print the result:
+	for ( int i = 0; i < 9; i++ ) {
+		printf( "out[ %i ] = %f\n", i, out[ i ] );
+	}
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/index.js
new file mode 100644
index 000000000000..97506062687a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/index.js
@@ -0,0 +1,43 @@
+/**
+* @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 sediff = 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( 13 );
+
+sediff( x.length, x, 1, 2, p, 1, 2, a, 1, out, 1 );
+console.log( 'Output', out );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/include.gypi b/lib/node_modules/@stdlib/blas/ext/base/sediff/include.gypi
new file mode 100644
index 000000000000..bee8d41a2caf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/include.gypi
@@ -0,0 +1,53 @@
+# @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.
+#
+# Main documentation:
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+  # Define variables to be used throughout the configuration for all targets:
+  'variables': {
+    # Source directory:
+    'src_dir': './src',
+
+    # Include directories:
+    'include_dirs': [
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'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\',{},{\'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\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).libraries; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+    ],
+
+    # Library directories:
+    'library_dirs': [
+      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'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/sediff/include/stdlib/blas/ext/base/sediff.h b/lib/node_modules/@stdlib/blas/ext/base/sediff/include/stdlib/blas/ext/base/sediff.h
new file mode 100644
index 000000000000..3ab7170f2d40
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/include/stdlib/blas/ext/base/sediff.h
@@ -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.
+*/
+
+#ifndef STDLIB_BLAS_EXT_BASE_SEDIFF_H
+#define STDLIB_BLAS_EXT_BASE_SEDIFF_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 differences between consecutive elements of a single-precision floating-point strided array.
+*/
+void API_SUFFIX(stdlib_strided_sediff)( const CBLAS_INT N, 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 );
+
+/**
+* Calculates the differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
+*/
+void API_SUFFIX(stdlib_strided_sediff_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 );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !STDLIB_BLAS_EXT_BASE_SEDIFF_H
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/index.js
new file mode 100644
index 000000000000..e0c65dbec74c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/index.js
@@ -0,0 +1,64 @@
+/**
+* @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 differences between consecutive elements of a single-precision floating-point strided array.
+*
+* @module @stdlib/blas/ext/base/sediff
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+* var sediff = require( '@stdlib/blas/ext/base/sediff' );
+*
+* 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( 6 );
+*
+* sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+
+// 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 sediff;
+var tmp = tryRequire( join( __dirname, './native.js' ) );
+if ( isError( tmp ) ) {
+	sediff = main;
+} else {
+	sediff = tmp;
+}
+
+
+// EXPORTS //
+
+module.exports = sediff;
+
+// exports: { "ndarray": "sediff.ndarray" }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/main.js
new file mode 100644
index 000000000000..943508239d95
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/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 sediff = require( './sediff.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( sediff, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/native.js
new file mode 100644
index 000000000000..e1e456e905c3
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/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 sediff = require( './sediff.native.js' );
+var ndarray = require( './ndarray.native.js' );
+
+
+// MAIN //
+
+setReadOnly( sediff, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js
new file mode 100644
index 000000000000..c925222fe412
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js
@@ -0,0 +1,100 @@
+/**
+* @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' );
+
+
+// MAIN //
+
+/**
+* Calculates the differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {NonNegativeInteger} 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 {NonNegativeInteger} 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 {NonNegativeInteger} offsetA - starting index for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {NonNegativeInteger} offsetOut - starting index for `out`
+* @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( 6 );
+*
+* sediff( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+function sediff( 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 i;
+
+	total = N + N1 + N2;
+	if ( total <= 1 ) {
+		return out;
+	}
+
+	// Copy `prepend` into output array:
+	scopy.ndarray( N1, prepend, strideP, offsetP, out, strideOut, offsetOut );
+
+	// Compute differences of input array:
+	ix = offsetX;
+	io = offsetOut + ( N1 * strideOut );
+	prev = x[ ix ];
+	for ( i = 1; i < N; i++ ) {
+		ix += strideX;
+		curr = x[ ix ];
+		out[ io ] = curr - prev;
+		prev = curr;
+		io += strideOut;
+	}
+
+	// Copy `append` into output array:
+	scopy.ndarray( N2, append, strideA, offsetA, out, strideOut, io );
+
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js
new file mode 100644
index 000000000000..bd93527866ec
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.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 differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {NonNegativeInteger} 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 {NonNegativeInteger} 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 {NonNegativeInteger} offsetA - starting index for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {NonNegativeInteger} offsetOut - starting index for `out`
+* @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( 6 );
+*
+* sediff( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+function sediff( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut ) {
+	addon.ndarray( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut );
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js
new file mode 100644
index 000000000000..fadf32bb96de
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js
@@ -0,0 +1,72 @@
+/**
+* @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 differences between consecutive elements of a single-precision floating-point strided array.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @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`
+* @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( 6 );
+*
+* sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+function sediff( N, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut ) {
+	var ox = stride2offset( N, strideX );
+	var op = stride2offset( N1, strideP );
+	var oa = stride2offset( N2, strideA );
+	var oo = stride2offset( N + N1 + N2 - 1, strideOut );
+	ndarray( N, x, strideX, ox, N1, prepend, strideP, op, N2, append, strideA, oa, out, strideOut, oo );
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js
new file mode 100644
index 000000000000..6e5b072a21f5
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js
@@ -0,0 +1,67 @@
+/**
+* @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 differences between consecutive elements of a single-precision floating-point strided array.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @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`
+* @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( 6 );
+*
+* sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+function sediff( N, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut ) {
+	addon( N, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut );
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/manifest.json b/lib/node_modules/@stdlib/blas/ext/base/sediff/manifest.json
new file mode 100644
index 000000000000..f9ac5c23cdb0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/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/sediff/package.json b/lib/node_modules/@stdlib/blas/ext/base/sediff/package.json
new file mode 100644
index 000000000000..e59db15b6e9b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/package.json
@@ -0,0 +1,74 @@
+{
+  "name": "@stdlib/blas/ext/base/sediff",
+  "version": "0.0.0",
+  "description": "Calculate the differences between consecutive elements 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/sediff/src/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/Makefile
new file mode 100644
index 000000000000..2caf905cedbe
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/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/sediff/src/addon.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/addon.c
new file mode 100644
index 000000000000..362aef16f0bb
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/addon.c
@@ -0,0 +1,79 @@
+/**
+* @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/sediff.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, 11 );
+	STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+	STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 2 );
+	STDLIB_NAPI_ARGV_INT64( env, N1, argv, 3 );
+	STDLIB_NAPI_ARGV_INT64( env, strideP, argv, 5 );
+	STDLIB_NAPI_ARGV_INT64( env, N2, argv, 6 );
+	STDLIB_NAPI_ARGV_INT64( env, strideA, argv, 8 );
+	STDLIB_NAPI_ARGV_INT64( env, strideOut, argv, 10 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 1 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 4 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 7 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N+N1+N2-1, strideOut, argv, 9 );
+	API_SUFFIX(stdlib_strided_sediff)( N, X, strideX, N1, prepend, strideP, N2, append, strideA, Out, strideOut );
+	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, 15 );
+	STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+	STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 2 );
+	STDLIB_NAPI_ARGV_INT64( env, offsetX, argv, 3 );
+	STDLIB_NAPI_ARGV_INT64( env, N1, argv, 4 );
+	STDLIB_NAPI_ARGV_INT64( env, strideP, argv, 6 );
+	STDLIB_NAPI_ARGV_INT64( env, offsetP, argv, 7 );
+	STDLIB_NAPI_ARGV_INT64( env, N2, argv, 8 );
+	STDLIB_NAPI_ARGV_INT64( env, strideA, argv, 10 );
+	STDLIB_NAPI_ARGV_INT64( env, offsetA, argv, 11 );
+	STDLIB_NAPI_ARGV_INT64( env, strideOut, argv, 13 );
+	STDLIB_NAPI_ARGV_INT64( env, offsetOut, argv, 14 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 1 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 5 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 9 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N+N1+N2-1, strideOut, argv, 12 );
+	API_SUFFIX(stdlib_strided_sediff_ndarray)( N, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, Out, strideOut, offsetOut );
+	return NULL;
+}
+
+STDLIB_NAPI_MODULE_EXPORT_FCN_WITH_METHOD( addon, "ndarray", addon_method )
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c
new file mode 100644
index 000000000000..49483d27dc5d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c
@@ -0,0 +1,98 @@
+/**
+* @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/sediff.h"
+#include "stdlib/strided/base/stride2offset.h"
+#include "stdlib/blas/base/scopy.h"
+#include "stdlib/blas/base/shared.h"
+
+/**
+* Calculates the differences between consecutive elements of a single-precision floating-point strided array.
+*
+* @param N          number of indexed elements
+* @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`
+*/
+void API_SUFFIX(stdlib_strided_sediff)( const CBLAS_INT N, 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 ) {
+	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+N2-1, strideOut );
+	API_SUFFIX(stdlib_strided_sediff_ndarray)( N, X, strideX, ox, N1, prepend, strideP, op, N2, append, strideA, oa, Out, strideOut, oo );
+}
+
+/**
+* Calculates the differences between consecutive elements 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`
+*/
+void API_SUFFIX(stdlib_strided_sediff_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 i;
+	float prev;
+	float curr;
+
+	total = N + N1 + N2;
+	if ( total <= 1 ) {
+		return;
+	}
+
+	// Copy `prepend` into output array:
+	c_scopy_ndarray( N1, prepend, strideP, offsetP, Out, strideOut, offsetOut );
+
+	// Compute differences of input array:
+	ix = offsetX;
+	io = offsetOut + ( N1 * strideOut );
+	prev = X[ ix ];
+	for ( i = 1; i < N; i++ ) {
+		ix += strideX;
+		curr = X[ ix ];
+		Out[ io ] = curr - prev;
+		prev = curr;
+		io += strideOut;
+	}
+
+	// Copy `append` into output array:
+	c_scopy_ndarray( N2, append, strideA, offsetA, Out, strideOut, io );
+
+	return;
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.js
new file mode 100644
index 000000000000..212c78eb618a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.js
@@ -0,0 +1,82 @@
+/**
+* @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 proxyquire = require( 'proxyquire' );
+var IS_BROWSER = require( '@stdlib/assert/is-browser' );
+var sediff = require( './../lib' );
+
+
+// VARIABLES //
+
+var opts = {
+	'skip': IS_BROWSER
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof sediff, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) {
+	t.strictEqual( typeof sediff.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 sediff = proxyquire( './../lib', {
+		'@stdlib/utils/try-require': tryRequire
+	});
+
+	t.strictEqual( sediff, 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 sediff;
+	var main;
+
+	main = require( './../lib/main.js' );
+
+	sediff = proxyquire( './../lib', {
+		'@stdlib/utils/try-require': tryRequire
+	});
+
+	t.strictEqual( sediff, main, 'returns expected value' );
+	t.end();
+
+	function tryRequire() {
+		return new Error( 'Cannot find module' );
+	}
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.js
new file mode 100644
index 000000000000..33e66a799aa0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.js
@@ -0,0 +1,193 @@
+/**
+* @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 sediff = require( './../lib/ndarray.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof sediff, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function has an arity of 15', function test( t ) {
+	t.strictEqual( sediff.length, 15, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function calculates differences between consecutive elements of a single-precision floating-point strided array', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0 ] );
+	a = new Float32Array( [ 30.0, 35.0 ] );
+	o = new Float32Array( 8 );
+
+	out = sediff( x.length, x, 1, 0, 2, p, 1, 0, 2, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array([
+		10.0,
+		15.0,
+		4.0,
+		4.0,
+		4.0,
+		4.0,
+		30.0,
+		35.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'if the sum of `N`, `N1` & `N2` parameter is less than or equal to `1`, the function returns `out` unchanged', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0 ] );
+	a = new Float32Array( [ 30.0, 35.0 ] );
+	o = new Float32Array( 8 );
+
+	out = sediff( 1, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array([
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports stride parameters', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+	a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+	o = new Float32Array( 11 );
+
+	out = sediff( 3, x, 2, 0, 2, p, 2, 0, 2, a, 2, 0, o, 2, 0 );
+	expected = new Float32Array([
+		10.0,
+		0.0,
+		25.0,
+		0.0,
+		8.0,
+		0.0,
+		8.0,
+		0.0,
+		30.0,
+		0.0,
+		45.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports negative stride parameters', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+	a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+	o = new Float32Array( 11 );
+
+	out = sediff( 3, x, -2, 4, 2, p, -2, 2, 2, a, -2, 2, o, -2, 10 );
+	expected = new Float32Array([
+		30.0,
+		0.0,
+		45.0,
+		0.0,
+		-8.0,
+		0.0,
+		-8.0,
+		0.0,
+		10.0,
+		0.0,
+		25.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports offset parameters', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 0.0, 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0 ] );
+	a = new Float32Array( [ 30.0 ] );
+	o = new Float32Array( 6 );
+
+	out = sediff( 3, x, 1, 2, 1, p, 1, 0, 1, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array([
+		10.0,
+		4.0,
+		4.0,
+		30.0,
+		0.0,
+		0.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.native.js
new file mode 100644
index 000000000000..5f37bf5e3f55
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.native.js
@@ -0,0 +1,202 @@
+/**
+* @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 sediff = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+	'skip': ( sediff instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof sediff, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function has an arity of 15', opts, function test( t ) {
+	t.strictEqual( sediff.length, 15, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function calculates differences between consecutive elements of a single-precision floating-point strided array', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0 ] );
+	a = new Float32Array( [ 30.0, 35.0 ] );
+	o = new Float32Array( 8 );
+
+	out = sediff( x.length, x, 1, 0, 2, p, 1, 0, 2, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array([
+		10.0,
+		15.0,
+		4.0,
+		4.0,
+		4.0,
+		4.0,
+		30.0,
+		35.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'if the sum of `N`, `N1` & `N2` parameter is less than or equal to `1`, the function returns `out` unchanged', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0 ] );
+	a = new Float32Array( [ 30.0, 35.0 ] );
+	o = new Float32Array( 8 );
+
+	out = sediff( 1, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array([
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports stride parameters', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+	a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+	o = new Float32Array( 11 );
+
+	out = sediff( 3, x, 2, 0, 2, p, 2, 0, 2, a, 2, 0, o, 2, 0 );
+	expected = new Float32Array([
+		10.0,
+		0.0,
+		25.0,
+		0.0,
+		8.0,
+		0.0,
+		8.0,
+		0.0,
+		30.0,
+		0.0,
+		45.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports negative stride parameters', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+	a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+	o = new Float32Array( 11 );
+
+	out = sediff( 3, x, -2, 4, 2, p, -2, 2, 2, a, -2, 2, o, -2, 10 );
+	expected = new Float32Array([
+		30.0,
+		0.0,
+		45.0,
+		0.0,
+		-8.0,
+		0.0,
+		-8.0,
+		0.0,
+		10.0,
+		0.0,
+		25.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports offset parameters', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 0.0, 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0 ] );
+	a = new Float32Array( [ 30.0 ] );
+	o = new Float32Array( 6 );
+
+	out = sediff( 3, x, 1, 2, 1, p, 1, 0, 1, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array([
+		10.0,
+		4.0,
+		4.0,
+		30.0,
+		0.0,
+		0.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.js
new file mode 100644
index 000000000000..a5bfbdc019e0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.js
@@ -0,0 +1,165 @@
+/**
+* @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 sediff = require( './../lib/sediff.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof sediff, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function has an arity of 11', function test( t ) {
+	t.strictEqual( sediff.length, 11, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function calculates differences between consecutive elements of a single-precision floating-point strided array', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0 ] );
+	a = new Float32Array( [ 30.0, 35.0 ] );
+	o = new Float32Array( 8 );
+
+	out = sediff( x.length, x, 1, 2, p, 1, 2, a, 1, o, 1 );
+	expected = new Float32Array([
+		10.0,
+		15.0,
+		4.0,
+		4.0,
+		4.0,
+		4.0,
+		30.0,
+		35.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'if the sum of `N`, `N1` & `N2` parameter is less than or equal to `1`, the function returns `out` unchanged', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0 ] );
+	a = new Float32Array( [ 30.0, 35.0 ] );
+	o = new Float32Array( 8 );
+
+	out = sediff( 1, x, 1, 0, p, 1, 0, a, 1, o, 1 );
+	expected = new Float32Array([
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports stride parameters', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+	a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+	o = new Float32Array( 11 );
+
+	out = sediff( 3, x, 2, 2, p, 2, 2, a, 2, o, 2 );
+	expected = new Float32Array([
+		10.0,
+		0.0,
+		25.0,
+		0.0,
+		8.0,
+		0.0,
+		8.0,
+		0.0,
+		30.0,
+		0.0,
+		45.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports negative stride parameters', function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+	a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+	o = new Float32Array( 11 );
+
+	out = sediff( 3, x, -2, 2, p, -2, 2, a, -2, o, -2 );
+	expected = new Float32Array([
+		30.0,
+		0.0,
+		45.0,
+		0.0,
+		-8.0,
+		0.0,
+		-8.0,
+		0.0,
+		10.0,
+		0.0,
+		25.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.native.js
new file mode 100644
index 000000000000..fdecd46fa40a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.native.js
@@ -0,0 +1,174 @@
+/**
+* @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 sediff = tryRequire( resolve( __dirname, './../lib/sediff.native.js' ) );
+var opts = {
+	'skip': ( sediff instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof sediff, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function has an arity of 11', opts, function test( t ) {
+	t.strictEqual( sediff.length, 11, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function calculates differences between consecutive elements of a single-precision floating-point strided array', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0 ] );
+	a = new Float32Array( [ 30.0, 35.0 ] );
+	o = new Float32Array( 8 );
+
+	out = sediff( x.length, x, 1, 2, p, 1, 2, a, 1, o, 1 );
+	expected = new Float32Array([
+		10.0,
+		15.0,
+		4.0,
+		4.0,
+		4.0,
+		4.0,
+		30.0,
+		35.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'if the sum of `N`, `N1` & `N2` parameter is less than or equal to `1`, the function returns `out` unchanged', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0 ] );
+	a = new Float32Array( [ 30.0, 35.0 ] );
+	o = new Float32Array( 8 );
+
+	out = sediff( 1, x, 1, 0, p, 1, 0, a, 1, o, 1 );
+	expected = new Float32Array([
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0,
+		0.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports stride parameters', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+	a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+	o = new Float32Array( 11 );
+
+	out = sediff( 3, x, 2, 2, p, 2, 2, a, 2, o, 2 );
+	expected = new Float32Array([
+		10.0,
+		0.0,
+		25.0,
+		0.0,
+		8.0,
+		0.0,
+		8.0,
+		0.0,
+		30.0,
+		0.0,
+		45.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports negative stride parameters', opts, function test( t ) {
+	var expected;
+	var out;
+	var x;
+	var p;
+	var a;
+	var o;
+
+	x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+	p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+	a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+	o = new Float32Array( 11 );
+
+	out = sediff( 3, x, -2, 2, p, -2, 2, a, -2, o, -2 );
+	expected = new Float32Array([
+		30.0,
+		0.0,
+		45.0,
+		0.0,
+		-8.0,
+		0.0,
+		-8.0,
+		0.0,
+		10.0,
+		0.0,
+		25.0
+	]);
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});

From 6619a1b98b1f9fd20db1d48f7db7ce35f58a5937 Mon Sep 17 00:00:00 2001
From: headlessNode <harriskhan047@outlook.com>
Date: Wed, 22 Apr 2026 22:10:10 +0500
Subject: [PATCH 2/3] 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: na
  - 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/sediff/README.md    | 54 ++++++-------
 .../sediff/benchmark/c/benchmark.length.c     |  4 +-
 .../blas/ext/base/sediff/docs/repl.txt        | 45 +++++------
 .../ext/base/sediff/docs/types/index.d.ts     | 24 ++++--
 .../blas/ext/base/sediff/docs/types/test.ts   | 12 +--
 .../blas/ext/base/sediff/examples/c/example.c |  6 +-
 .../blas/ext/base/sediff/examples/index.js    |  2 +-
 .../@stdlib/blas/ext/base/sediff/include.gypi | 25 +++++-
 .../include/stdlib/blas/ext/base/sediff.h     |  5 +-
 .../@stdlib/blas/ext/base/sediff/lib/index.js | 14 ++++
 .../blas/ext/base/sediff/lib/ndarray.js       | 12 +--
 .../ext/base/sediff/lib/ndarray.native.js     | 12 +--
 .../blas/ext/base/sediff/lib/sediff.js        |  4 +-
 .../blas/ext/base/sediff/lib/sediff.native.js |  4 +-
 .../@stdlib/blas/ext/base/sediff/src/addon.c  | 12 +--
 .../@stdlib/blas/ext/base/sediff/src/main.c   | 54 ++++++-------
 .../@stdlib/blas/ext/base/sediff/test/test.js |  2 +-
 .../blas/ext/base/sediff/test/test.ndarray.js | 76 +++++++++++++++++++
 .../base/sediff/test/test.ndarray.native.js   | 76 +++++++++++++++++++
 .../blas/ext/base/sediff/test/test.sediff.js  | 76 +++++++++++++++++++
 .../base/sediff/test/test.sediff.native.js    | 76 +++++++++++++++++++
 21 files changed, 468 insertions(+), 127 deletions(-)

diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md b/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md
index 723b25a2d58e..b15f3c9ad0e0 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md
@@ -55,10 +55,10 @@ The function has the following parameters:
 -   **N**: number of indexed elements.
 -   **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 after 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 after computing differences.
 -   **strideA**: stride length for `append`.
 -   **out**: output [`Float32Array`][@stdlib/array/float32]. Must have `N + N1 + N2 - 1` elements.
@@ -152,7 +152,7 @@ console.log( out );
 
 ## Notes
 
--   If the sum of `N`, `N1`, and `N2` is less than or equal to `1`, both functions return the output array unchanged.
+-   If `N + N1 + N2 <= 1`, both functions return the output array unchanged.
 
 </section>
 
@@ -187,7 +187,7 @@ console.log( 'Append array: ', a );
 var out = new Float32Array( 13 );
 
 sediff( x.length, x, 1, 2, p, 1, 2, a, 1, out, 1 );
-console.log( 'Output', out );
+console.log( 'Output: ', out );
 ```
 
 </section>
@@ -222,7 +222,7 @@ console.log( 'Output', out );
 
 <!-- lint disable maximum-heading-length -->
 
-#### stdlib_strided_sediff( N, \*X, strideX, N1, \*prepend, strideP, N2, \*append, strideA, \*Out, strideOut )
+#### stdlib_strided_sediff( N, \*X, strideX, N1, \*Prepend, strideP, N2, \*Append, strideA, \*Out, strideOut )
 
 Calculates the differences between consecutive elements of a single-precision floating-point strided array.
 
@@ -240,22 +240,22 @@ The function accepts the following arguments:
 -   **N**: `[in] CBLAS_INT` number of indexed elements.
 -   **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 after 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 after computing differences.
--   **strideA**: `[in] CBLAS_INT` stride length for `append`.
--   **Out**: `[inout] float*` output array. Must have `N + N1 + N2 - 1` elements.
+-   **N1**: `[in] CBLAS_INT` number of indexed elements for `Prepend`.
+-   **Prepend**: `[in] float*` array containing values to prepend after 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 after computing differences.
+-   **strideA**: `[in] CBLAS_INT` stride length for `Append`.
+-   **Out**: `[out] float*` output array. Must have `N + N1 + N2 - 1` elements.
 -   **strideOut**: `[in] CBLAS_INT` stride length for `Out`.
 
 ```c
-void stdlib_strided_sediff( const CBLAS_INT N, 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 );
+void stdlib_strided_sediff( const CBLAS_INT N, 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 );
 ```
 
 <!-- lint disable maximum-heading-length -->
 
-#### stdlib_strided_sediff_ndarray( N, \*X, strideX, offsetX, N1, \*prepend, strideP, offsetP, N2, \*append, strideA, offsetA, \*Out, strideOut, offsetOut )
+#### stdlib_strided_sediff_ndarray( N, \*X, strideX, offsetX, N1, \*Prepend, strideP, offsetP, N2, \*Append, strideA, offsetA, \*Out, strideOut, offsetOut )
 
 Calculates the differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
 
@@ -274,20 +274,20 @@ The function accepts the following arguments:
 -   **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 after 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 after 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 - 1` elements.
+-   **N1**: `[in] CBLAS_INT` number of indexed elements for `Prepend`.
+-   **Prepend**: `[in] float*` array containing values to prepend after 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 after 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 - 1` elements.
 -   **strideOut**: `[in] CBLAS_INT` stride length for `Out`.
 -   **offsetOut**: `[in] CBLAS_INT` starting index for `Out`.
 
 ```c
-void stdlib_strided_sediff_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 );
+void stdlib_strided_sediff_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 );
 ```
 
 </section>
@@ -316,13 +316,13 @@ 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, 0.0f, 0.0f };
 
     // Compute forward differences:
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/benchmark.length.c
index 59e4414816ac..259931e48623 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/benchmark.length.c
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/benchmark.length.c
@@ -230,7 +230,7 @@ int main( void ) {
 		iter = ITERATIONS / pow( 10, i-1 );
 		for ( j = 0; j < REPEATS; j++ ) {
 			count += 1;
-			printf( "# c::native::%s:len=%d\n", NAME, len );
+			printf( "# c::%s:len=%d\n", NAME, len );
 			elapsed = benchmark1( iter, len );
 			print_results( iter, elapsed );
 			printf( "ok %d benchmark finished\n", count );
@@ -241,7 +241,7 @@ int main( void ) {
 		iter = ITERATIONS / pow( 10, i-1 );
 		for ( j = 0; j < REPEATS; j++ ) {
 			count += 1;
-			printf( "# c::native::%s:ndarray:len=%d\n", NAME, len );
+			printf( "# c::%s:ndarray:len=%d\n", NAME, len );
 			elapsed = benchmark2( iter, len );
 			print_results( iter, elapsed );
 			printf( "ok %d benchmark finished\n", count );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt
index e4f60d7f39e2..7c7224866789 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt
@@ -1,4 +1,5 @@
-{{alias}}( N, x, sx, N1, p, sp, N2, a, sa, out, so )
+
+{{alias}}( N, x,sx, N1,p,sp, N2,a,sa, out,so )
     Calculates the differences between consecutive elements of a
     single-precision floating-point strided array.
 
@@ -8,8 +9,7 @@
     Indexing is relative to the first index. To introduce an offset, use a typed
     array view.
 
-    If the sum of `N`, `N1`, and `N2` is less than or equal to `1`, the function
-    returns the output array unchanged.
+    If `N + N1 + N2 <= 1`, the function returns the output array unchanged.
 
     Parameters
     ----------
@@ -23,25 +23,25 @@
         Stride length for `x`.
 
     N1: integer
-        Number of elements to `prepend`.
+        Number of indexed elements for `p`.
 
     p: Float32Array
         Array containing values to prepend after 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 after computing differences.
 
     sa: integer
-        Stride length for `append`.
+        Stride length for `a`.
 
     out: Float32Array
-        Output array.
+        Output array. Must have `N + N1 + N2 - 1` indexed elements.
 
     so: integer
         Stride length for `out`.
@@ -53,7 +53,7 @@
 
     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 ] );
@@ -65,7 +65,7 @@
     > 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 );
+    > out = new {{alias:@stdlib/array/float32}}( 4 );
     > {{alias}}( 3, x, 2, 1, p, 1, 1, a, 1, out, 1 )
     <Float32Array>[ 1.0, 4.0, 4.0, 11.0 ]
 
@@ -74,12 +74,12 @@
     > 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 );
+    > out = new {{alias:@stdlib/array/float32}}( 5 );
     > {{alias}}( x1.length, x1, 1, 1, p, 1, 1, a, 1, out, 1 )
     <Float32Array>[ 1.0, 2.0, 2.0, 2.0, 11.0 ]
 
 
-{{alias}}.ndarray( N, x, sx, ox, N1, p, sp, op, N2, a, sa, oa, out, so, oo )
+{{alias}}.ndarray( N, x,sx,ox, N1, p,sp,op, N2, a,sa,oa, out,so,oo )
     Calculates the differences between consecutive elements of a
     single-precision floating-point strided array using alternative indexing
     semantics.
@@ -103,31 +103,31 @@
         Starting index for `x`.
 
     N1: integer
-        Number of elements to `prepend`.
+        Number of indexed elements for `p`.
 
     p: Float32Array
         Array containing values to prepend after 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 after 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.
+        Output array. Must have `N + N1 + N2 - 1` indexed elements.
 
     so: integer
         Stride length for `out`.
@@ -142,12 +142,12 @@
 
     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 ] );
     > var out = new {{alias:@stdlib/array/float32}}( 4 );
-    > {{alias}}.ndarray( 3, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 )
+    > {{alias}}.ndarray( 3, x,1,0, 1, p,1,0, 1, a,1,0, out,1,0 )
     <Float32Array>[ 0.0, -3.0, 4.0, 3.0 ]
 
     // Advanced indexing:
@@ -155,8 +155,9 @@
     > p = new {{alias:@stdlib/array/float32}}( [ 0.0 ] );
     > a = new {{alias:@stdlib/array/float32}}( [ 3.0 ] );
     > out = new {{alias:@stdlib/array/float32}}( 3 );
-    > {{alias}}.ndarray( 2, x, 1, 1, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 )
+    > {{alias}}.ndarray( 2, x,1,1, 1, p,1,0, 1, a,1,0, out,1,0 )
     <Float32Array>[ 0.0, 4.0, 3.0 ]
 
     See Also
     --------
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts
index 9af60cce3cb6..41307b6e078d 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts
@@ -25,13 +25,17 @@ interface Routine {
 	/**
 	* Calculates the differences between consecutive elements of a single-precision floating-point strided array.
 	*
+	* ## Notes
+	*
+	* -   The `out` array must have `N + N1 + N2 - 1` elements.
+	*
 	* @param N - number of indexed elements
 	* @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
@@ -56,15 +60,19 @@ interface Routine {
 	/**
 	* Calculates the differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
 	*
+	* ## Notes
+	*
+	* -   The `out` array must have `N + N1 + N2 - 1` elements.
+	*
 	* @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 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`
@@ -92,13 +100,17 @@ interface Routine {
 /**
 * Calculates the differences between consecutive elements of a single-precision floating-point strided array.
 *
+* ## Notes
+*
+* -   The `out` array must have `N + N1 + N2 - 1` elements.
+*
 * @param N - number of indexed elements
 * @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/sediff/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/test.ts
index f19831b974d7..2a225cb7a5c9 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/test.ts
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/test.ts
@@ -54,7 +54,6 @@ import sediff = require( './index' );
 	const a = new Float32Array( 1 );
 	const out = new Float32Array( 11 );
 
-	sediff( 10, 10, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
 	sediff( 10, '10', 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
 	sediff( 10, true, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
 	sediff( 10, false, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
@@ -105,7 +104,6 @@ import sediff = require( './index' );
 	const a = new Float32Array( 1 );
 	const out = new Float32Array( 11 );
 
-	sediff( x.length, x, 1, 1, 10, 1, 1, a, 1, out, 1 ); // $ExpectError
 	sediff( x.length, x, 1, 1, '10', 1, 1, a, 1, out, 1 ); // $ExpectError
 	sediff( x.length, x, 1, 1, true, 1, 1, a, 1, out, 1 ); // $ExpectError
 	sediff( x.length, x, 1, 1, false, 1, 1, a, 1, out, 1 ); // $ExpectError
@@ -156,7 +154,6 @@ import sediff = require( './index' );
 	const p = new Float32Array( 1 );
 	const out = new Float32Array( 11 );
 
-	sediff( x.length, x, 1, 1, p, 1, 1, 10, 1, out, 1 ); // $ExpectError
 	sediff( x.length, x, 1, 1, p, 1, 1, '10', 1, out, 1 ); // $ExpectError
 	sediff( x.length, x, 1, 1, p, 1, 1, true, 1, out, 1 ); // $ExpectError
 	sediff( x.length, x, 1, 1, p, 1, 1, false, 1, out, 1 ); // $ExpectError
@@ -190,7 +187,6 @@ import sediff = require( './index' );
 	const p = new Float32Array( 1 );
 	const a = new Float32Array( 1 );
 
-	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, 10, 1 ); // $ExpectError
 	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, '10', 1 ); // $ExpectError
 	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, true, 1 ); // $ExpectError
 	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, false, 1 ); // $ExpectError
@@ -236,7 +232,7 @@ import sediff = require( './index' );
 	sediff( x.length, x, 1, 1, p, 1, 1, a ); // $ExpectError
 	sediff( x.length, x, 1, 1, p, 1, 1, a, 1 ); // $ExpectError
 	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out ); // $ExpectError
-	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1, 10 ); // $ExpectError
+	sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1, {} ); // $ExpectError
 }
 
 // Attached to main export is an `ndarray` method which returns a Float32Array...
@@ -272,7 +268,6 @@ import sediff = require( './index' );
 	const a = new Float32Array( 1 );
 	const out = new Float32Array( 11 );
 
-	sediff.ndarray( 10, 10, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
 	sediff.ndarray( 10, '10', 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
 	sediff.ndarray( 10, true, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
 	sediff.ndarray( 10, false, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
@@ -340,7 +335,6 @@ import sediff = require( './index' );
 	const a = new Float32Array( 1 );
 	const out = new Float32Array( 11 );
 
-	sediff.ndarray( x.length, x, 1, 0, 1, 10, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
 	sediff.ndarray( x.length, x, 1, 0, 1, '10', 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
 	sediff.ndarray( x.length, x, 1, 0, 1, true, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
 	sediff.ndarray( x.length, x, 1, 0, 1, false, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
@@ -408,7 +402,6 @@ import sediff = require( './index' );
 	const p = new Float32Array( 1 );
 	const out = new Float32Array( 11 );
 
-	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, 10, 1, 0, out, 1, 0 ); // $ExpectError
 	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, '10', 1, 0, out, 1, 0 ); // $ExpectError
 	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, true, 1, 0, out, 1, 0 ); // $ExpectError
 	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, false, 1, 0, out, 1, 0 ); // $ExpectError
@@ -459,7 +452,6 @@ import sediff = require( './index' );
 	const p = new Float32Array( 1 );
 	const a = new Float32Array( 1 );
 
-	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, 10, 1, 0 ); // $ExpectError
 	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, '10', 1, 0 ); // $ExpectError
 	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, true, 1, 0 ); // $ExpectError
 	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, false, 1, 0 ); // $ExpectError
@@ -526,5 +518,5 @@ import sediff = require( './index' );
 	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0 ); // $ExpectError
 	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out ); // $ExpectError
 	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1 ); // $ExpectError
-	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, 10 ); // $ExpectError
+	sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, {} ); // $ExpectError
 }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/example.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/example.c
index bdfeb5d6ef19..926096617bc7 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/example.c
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/example.c
@@ -23,13 +23,13 @@ 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, 0.0f, 0.0f };
 
 	// Compute forward differences:
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/index.js
index 97506062687a..94c8fbc5357b 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/index.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/index.js
@@ -40,4 +40,4 @@ console.log( 'Append array: ', a );
 var out = new Float32Array( 13 );
 
 sediff( x.length, x, 1, 2, p, 1, 2, a, 1, out, 1 );
-console.log( 'Output', out );
+console.log( 'Output: ', out );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/include.gypi b/lib/node_modules/@stdlib/blas/ext/base/sediff/include.gypi
index bee8d41a2caf..dcb556d250e8 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/include.gypi
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/include.gypi
@@ -16,19 +16,35 @@
 
 # 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': [
-      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).include; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+      '<@(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:
@@ -37,17 +53,18 @@
     # Source files:
     'src_files': [
       '<(src_dir)/addon.c',
-      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).src; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+      '<!@(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\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).libraries; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+      '<!@(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': [
-      '<!@(node -e "var arr = require(\'@stdlib/utils/library-manifest\')(\'./manifest.json\',{},{\'basedir\':process.cwd(),\'paths\':\'posix\'}).libpath; for ( var i = 0; i < arr.length; i++ ) { console.log( arr[ i ] ); }")',
+      '<@(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/sediff/include/stdlib/blas/ext/base/sediff.h b/lib/node_modules/@stdlib/blas/ext/base/sediff/include/stdlib/blas/ext/base/sediff.h
index 3ab7170f2d40..519ecca3c153 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/include/stdlib/blas/ext/base/sediff.h
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/include/stdlib/blas/ext/base/sediff.h
@@ -31,12 +31,13 @@ extern "C" {
 /**
 * Calculates the differences between consecutive elements of a single-precision floating-point strided array.
 */
-void API_SUFFIX(stdlib_strided_sediff)( const CBLAS_INT N, 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 );
+void API_SUFFIX(stdlib_strided_sediff)( const CBLAS_INT N, 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 );
 
 /**
 * Calculates the differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
 */
-void API_SUFFIX(stdlib_strided_sediff_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 );
+void API_SUFFIX(stdlib_strided_sediff_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 );
+
 
 #ifdef __cplusplus
 }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/index.js
index e0c65dbec74c..98a9c60ac22e 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/index.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/index.js
@@ -36,6 +36,20 @@
 *
 * console.log( out );
 * // out => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+* var sediff = require( '@stdlib/blas/ext/base/sediff' );
+*
+* 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( 6 );
+*
+* sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+*
+* console.log( out );
+* // out => <Float32Array>[ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
 */
 
 // MODULES //
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js
index c925222fe412..adb3367324c3 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js
@@ -33,18 +33,18 @@ var scopy = require( '@stdlib/blas/base/scopy' );
 * @param {PositiveInteger} N - number of indexed elements
 * @param {Float32Array} x - input array
 * @param {integer} strideX - stride length for `x`
-* @param {NonNegativeInteger} offsetX - starting index for `x`
-* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @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 {NonNegativeInteger} offsetP - starting index for `prepend`
-* @param {PositiveInteger} N2 - number of indexed elements of append
+* @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 {NonNegativeInteger} offsetA - starting index for `append`
+* @param {PositiveInteger} offsetA - starting index for `append`
 * @param {Float32Array} out - output array
 * @param {integer} strideOut - stride length for `out`
-* @param {NonNegativeInteger} offsetOut - starting index for `out`
+* @param {PositiveInteger} offsetOut - starting index for `out`
 * @returns {Float32Array} output array
 *
 * @example
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js
index bd93527866ec..446bf081d578 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js
@@ -33,18 +33,18 @@ var addon = require( './../src/addon.node' );
 * @param {PositiveInteger} N - number of indexed elements
 * @param {Float32Array} x - input array
 * @param {integer} strideX - stride length for `x`
-* @param {NonNegativeInteger} offsetX - starting index for `x`
-* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @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 {NonNegativeInteger} offsetP - starting index for `prepend`
-* @param {PositiveInteger} N2 - number of indexed elements of append
+* @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 {NonNegativeInteger} offsetA - starting index for `append`
+* @param {PositiveInteger} offsetA - starting index for `append`
 * @param {Float32Array} out - output array
 * @param {integer} strideOut - stride length for `out`
-* @param {NonNegativeInteger} offsetOut - starting index for `out`
+* @param {PositiveInteger} offsetOut - starting index for `out`
 * @returns {Float32Array} output array
 *
 * @example
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js
index fadf32bb96de..1ea2f41dfaca 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js
@@ -34,10 +34,10 @@ var ndarray = require( './ndarray.js' );
 * @param {PositiveInteger} N - number of indexed elements
 * @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/sediff/lib/sediff.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js
index 6e5b072a21f5..df646b2e850e 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js
@@ -33,10 +33,10 @@ var addon = require( './../src/addon.node' );
 * @param {PositiveInteger} N - number of indexed elements
 * @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/sediff/src/addon.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/addon.c
index 362aef16f0bb..b617b275b888 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/src/addon.c
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/addon.c
@@ -41,10 +41,10 @@ static napi_value addon( napi_env env, napi_callback_info info ) {
 	STDLIB_NAPI_ARGV_INT64( env, strideA, argv, 8 );
 	STDLIB_NAPI_ARGV_INT64( env, strideOut, argv, 10 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 1 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 4 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 7 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Prepend, N1, strideP, argv, 4 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Append, N2, strideA, argv, 7 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N+N1+N2-1, strideOut, argv, 9 );
-	API_SUFFIX(stdlib_strided_sediff)( N, X, strideX, N1, prepend, strideP, N2, append, strideA, Out, strideOut );
+	API_SUFFIX(stdlib_strided_sediff)( N, X, strideX, N1, Prepend, strideP, N2, Append, strideA, Out, strideOut );
 	return NULL;
 }
 
@@ -69,10 +69,10 @@ static napi_value addon_method( napi_env env, napi_callback_info info ) {
 	STDLIB_NAPI_ARGV_INT64( env, strideOut, argv, 13 );
 	STDLIB_NAPI_ARGV_INT64( env, offsetOut, argv, 14 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 1 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 5 );
-	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 9 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Prepend, N1, strideP, argv, 5 );
+	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Append, N2, strideA, argv, 9 );
 	STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N+N1+N2-1, strideOut, argv, 12 );
-	API_SUFFIX(stdlib_strided_sediff_ndarray)( N, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, Out, strideOut, offsetOut );
+	API_SUFFIX(stdlib_strided_sediff_ndarray)( N, X, strideX, offsetX, N1, Prepend, strideP, offsetP, N2, Append, strideA, offsetA, Out, strideOut, offsetOut );
 	return NULL;
 }
 
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c
index 49483d27dc5d..f3c6b1c4b3b9 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c
@@ -26,22 +26,22 @@
 *
 * @param N          number of indexed elements
 * @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 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 strideOut  stride length for Out
 */
-void API_SUFFIX(stdlib_strided_sediff)( const CBLAS_INT N, 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 ) {
+void API_SUFFIX(stdlib_strided_sediff)( const CBLAS_INT N, 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 ) {
 	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+N2-1, strideOut );
-	API_SUFFIX(stdlib_strided_sediff_ndarray)( N, X, strideX, ox, N1, prepend, strideP, op, N2, append, strideA, oa, Out, strideOut, oo );
+	API_SUFFIX(stdlib_strided_sediff_ndarray)( N, X, strideX, ox, N1, Prepend, strideP, op, N2, Append, strideA, oa, Out, strideOut, oo );
 }
 
 /**
@@ -49,21 +49,21 @@ void API_SUFFIX(stdlib_strided_sediff)( const CBLAS_INT N, const float *X, const
 *
 * @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 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 strideOut  stride length for Out
+* @param offsetOut  starting index for Out
 */
-void API_SUFFIX(stdlib_strided_sediff_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 ) {
+void API_SUFFIX(stdlib_strided_sediff_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;
@@ -76,8 +76,8 @@ void API_SUFFIX(stdlib_strided_sediff_ndarray)( const CBLAS_INT N, const float *
 		return;
 	}
 
-	// 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 );
 
 	// Compute differences of input array:
 	ix = offsetX;
@@ -91,8 +91,8 @@ void API_SUFFIX(stdlib_strided_sediff_ndarray)( const CBLAS_INT N, const float *
 		io += strideOut;
 	}
 
-	// Copy `append` into output array:
-	c_scopy_ndarray( N2, append, strideA, offsetA, Out, strideOut, io );
+	// Copy `Append` into output array:
+	c_scopy_ndarray( N2, Append, strideA, offsetA, Out, strideOut, io );
 
 	return;
 }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.js
index 212c78eb618a..5da5d5e86815 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.js
@@ -67,7 +67,7 @@ tape( 'if a native implementation is not available, the main export is a JavaScr
 	var sediff;
 	var main;
 
-	main = require( './../lib/main.js' );
+	main = require( './../lib/sediff.js' );
 
 	sediff = proxyquire( './../lib', {
 		'@stdlib/utils/try-require': tryRequire
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.js
index 33e66a799aa0..bc38185d3362 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.js
@@ -191,3 +191,79 @@ tape( 'the function supports offset parameters', function test( t ) {
 
 	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 o;
+
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	o = new Float32Array( 3 );
+
+	out = sediff( x.length, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array( [ 2.0, 3.0, 4.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 o;
+
+	// Multiple prepend (N1=2), no append:
+	x = new Float32Array( [ 6.0, 8.0 ] );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( 0 );
+	o = new Float32Array( 3 );
+
+	out = sediff( x.length, x, 1, 0, 2, p, 1, 0, 0, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array( [ 1.0, 3.0, 2.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 ] );
+	o = new Float32Array( 4 );
+
+	out = sediff( x.length, x, 1, 0, 1, p, 1, 0, 2, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array( [ 1.0, 2.0, 6.0, 10.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 o;
+
+	// No prepend, x present, single append:
+	x = new Float32Array( [ 2.0, 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 10.0 ] );
+	o = new Float32Array( 2 );
+
+	out = sediff( x.length, x, 1, 0, 0, p, 1, 0, 1, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array( [ 3.0, 10.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.native.js
index 5f37bf5e3f55..03bef9849b10 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.native.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.native.js
@@ -200,3 +200,79 @@ tape( 'the function supports offset parameters', opts, function test( t ) {
 
 	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 o;
+
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	o = new Float32Array( 3 );
+
+	out = sediff( x.length, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array( [ 2.0, 3.0, 4.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 o;
+
+	// Multiple prepend (N1=2), no append:
+	x = new Float32Array( [ 6.0, 8.0 ] );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( 0 );
+	o = new Float32Array( 3 );
+
+	out = sediff( x.length, x, 1, 0, 2, p, 1, 0, 0, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array( [ 1.0, 3.0, 2.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 ] );
+	o = new Float32Array( 4 );
+
+	out = sediff( x.length, x, 1, 0, 1, p, 1, 0, 2, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array( [ 1.0, 2.0, 6.0, 10.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 o;
+
+	// No prepend, x present, single append:
+	x = new Float32Array( [ 2.0, 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 10.0 ] );
+	o = new Float32Array( 2 );
+
+	out = sediff( x.length, x, 1, 0, 0, p, 1, 0, 1, a, 1, 0, o, 1, 0 );
+	expected = new Float32Array( [ 3.0, 10.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.js
index a5bfbdc019e0..9b3b39abb39b 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.js
@@ -163,3 +163,79 @@ tape( 'the function supports negative stride parameters', function test( t ) {
 
 	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 o;
+
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	o = new Float32Array( 3 );
+
+	out = sediff( x.length, x, 1, 0, p, 1, 0, a, 1, o, 1 );
+	expected = new Float32Array( [ 2.0, 3.0, 4.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 o;
+
+	// Multiple prepend (N1=2), no append:
+	x = new Float32Array( [ 6.0, 8.0 ] );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( 0 );
+	o = new Float32Array( 3 );
+
+	out = sediff( x.length, x, 1, 2, p, 1, 0, a, 1, o, 1 );
+	expected = new Float32Array( [ 1.0, 3.0, 2.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 ] );
+	o = new Float32Array( 4 );
+
+	out = sediff( x.length, x, 1, 1, p, 1, 2, a, 1, o, 1 );
+	expected = new Float32Array( [ 1.0, 2.0, 6.0, 10.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 o;
+
+	// No prepend, x present, single append:
+	x = new Float32Array( [ 2.0, 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 10.0 ] );
+	o = new Float32Array( 2 );
+
+	out = sediff( x.length, x, 1, 0, p, 1, 1, a, 1, o, 1 );
+	expected = new Float32Array( [ 3.0, 10.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.native.js
index fdecd46fa40a..0e3814fcda40 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.native.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.native.js
@@ -172,3 +172,79 @@ tape( 'the function supports negative stride parameters', opts, function test( t
 
 	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 o;
+
+	x = new Float32Array( [ 1.0, 3.0, 6.0, 10.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( 0 );
+	o = new Float32Array( 3 );
+
+	out = sediff( x.length, x, 1, 0, p, 1, 0, a, 1, o, 1 );
+	expected = new Float32Array( [ 2.0, 3.0, 4.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 o;
+
+	// Multiple prepend (N1=2), no append:
+	x = new Float32Array( [ 6.0, 8.0 ] );
+	p = new Float32Array( [ 1.0, 3.0 ] );
+	a = new Float32Array( 0 );
+	o = new Float32Array( 3 );
+
+	out = sediff( x.length, x, 1, 2, p, 1, 0, a, 1, o, 1 );
+	expected = new Float32Array( [ 1.0, 3.0, 2.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 ] );
+	o = new Float32Array( 4 );
+
+	out = sediff( x.length, x, 1, 1, p, 1, 2, a, 1, o, 1 );
+	expected = new Float32Array( [ 1.0, 2.0, 6.0, 10.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, '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 o;
+
+	// No prepend, x present, single append:
+	x = new Float32Array( [ 2.0, 5.0 ] );
+	p = new Float32Array( 0 );
+	a = new Float32Array( [ 10.0 ] );
+	o = new Float32Array( 2 );
+
+	out = sediff( x.length, x, 1, 0, p, 1, 1, a, 1, o, 1 );
+	expected = new Float32Array( [ 3.0, 10.0 ] );
+	t.deepEqual( o, expected, 'returns expected value' );
+	t.strictEqual( out, o, 'returns expected value' );
+
+	t.end();
+});

From bd2e0345fac3619d599240609478cfaa5e17683b Mon Sep 17 00:00:00 2001
From: headlessNode <harriskhan047@outlook.com>
Date: Wed, 22 Apr 2026 23:40:03 +0500
Subject: [PATCH 3/3] 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: 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: passed
  - task: lint_license_headers
    status: passed
---
---
 .../@stdlib/blas/ext/base/sediff/README.md           |  8 ++++----
 .../@stdlib/blas/ext/base/sediff/docs/repl.txt       |  8 ++++----
 .../blas/ext/base/sediff/docs/types/index.d.ts       | 12 ++++++------
 .../@stdlib/blas/ext/base/sediff/lib/ndarray.js      |  4 ++--
 .../blas/ext/base/sediff/lib/ndarray.native.js       |  4 ++--
 .../@stdlib/blas/ext/base/sediff/lib/sediff.js       |  4 ++--
 .../blas/ext/base/sediff/lib/sediff.native.js        |  4 ++--
 .../@stdlib/blas/ext/base/sediff/src/main.c          |  8 ++++----
 8 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md b/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md
index b15f3c9ad0e0..2e404e9ab63c 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md
@@ -240,10 +240,10 @@ The function accepts the following arguments:
 -   **N**: `[in] CBLAS_INT` number of indexed elements.
 -   **X**: `[in] float*` input array.
 -   **strideX**: `[in] CBLAS_INT` stride length for `X`.
--   **N1**: `[in] CBLAS_INT` number of indexed elements for `Prepend`.
+-   **N1**: `[in] CBLAS_INT` number of indexed elements to `Prepend`.
 -   **Prepend**: `[in] float*` array containing values to prepend after computing differences.
 -   **strideP**: `[in] CBLAS_INT` stride length for `Prepend`.
--   **N2**: `[in] CBLAS_INT` number of indexed elements for `Append`.
+-   **N2**: `[in] CBLAS_INT` number of indexed elements to `Append`.
 -   **Append**: `[in] float*` array containing values to append after computing differences.
 -   **strideA**: `[in] CBLAS_INT` stride length for `Append`.
 -   **Out**: `[out] float*` output array. Must have `N + N1 + N2 - 1` elements.
@@ -274,11 +274,11 @@ The function accepts the following arguments:
 -   **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 indexed elements for `Prepend`.
+-   **N1**: `[in] CBLAS_INT` number of indexed elements to `Prepend`.
 -   **Prepend**: `[in] float*` array containing values to prepend after 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`.
+-   **N2**: `[in] CBLAS_INT` number of indexed elements to `Append`.
 -   **Append**: `[in] float*` array containing values to append after computing differences.
 -   **strideA**: `[in] CBLAS_INT` stride length for `Append`.
 -   **offsetA**: `[in] CBLAS_INT` starting index for `Append`.
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt
index 7c7224866789..b27a4fc5b52d 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt
@@ -23,7 +23,7 @@
         Stride length for `x`.
 
     N1: integer
-        Number of indexed elements for `p`.
+        Number of indexed elements to prepend.
 
     p: Float32Array
         Array containing values to prepend after computing differences.
@@ -32,7 +32,7 @@
         Stride length for `p`.
 
     N2: integer
-        Number of indexed elements for `a`.
+        Number of indexed elements to append.
 
     a: Float32Array
         Array containing values to append after computing differences.
@@ -103,7 +103,7 @@
         Starting index for `x`.
 
     N1: integer
-        Number of indexed elements for `p`.
+        Number of indexed elements to prepend.
 
     p: Float32Array
         Array containing values to prepend after computing differences.
@@ -115,7 +115,7 @@
         Starting index for `p`.
 
     N2: integer
-        Number of indexed elements for `a`.
+        Number of indexed elements to append.
 
     a: Float32Array
         Array containing values to append after computing differences.
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts
index 41307b6e078d..a5318882cf8e 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts
@@ -32,10 +32,10 @@ interface Routine {
 	* @param N - number of indexed elements
 	* @param x - input array
 	* @param strideX - stride length for `x`
-	* @param N1 - number of indexed elements for `prepend`
+	* @param N1 - number of indexed elements to `prepend`
 	* @param prepend - prepend array
 	* @param strideP - stride length for `prepend`
-	* @param N2 - number of indexed elements for `append`
+	* @param N2 - number of indexed elements to `append`
 	* @param append - append array
 	* @param strideA - stride length for `append`
 	* @param out - output array
@@ -68,11 +68,11 @@ interface Routine {
 	* @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 N1 - number of indexed elements to `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 N2 - number of indexed elements to `append`
 	* @param append - append array
 	* @param strideA - stride length for `append`
 	* @param offsetA - starting index for `append`
@@ -107,10 +107,10 @@ interface Routine {
 * @param N - number of indexed elements
 * @param x - input array
 * @param strideX - stride length for `x`
-* @param N1 - number of indexed elements for `prepend`
+* @param N1 - number of indexed elements to `prepend`
 * @param prepend - prepend array
 * @param strideP - stride length for `prepend`
-* @param N2 - number of indexed elements for `append`
+* @param N2 - number of indexed elements to `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/sediff/lib/ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js
index adb3367324c3..7882819c7709 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js
@@ -34,11 +34,11 @@ var scopy = require( '@stdlib/blas/base/scopy' );
 * @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 {PositiveInteger} N1 - number of indexed elements to `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 {PositiveInteger} N2 - number of indexed elements to `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/sediff/lib/ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js
index 446bf081d578..abfc3384870d 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js
@@ -34,11 +34,11 @@ var addon = require( './../src/addon.node' );
 * @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 {PositiveInteger} N1 - number of indexed elements to `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 {PositiveInteger} N2 - number of indexed elements to `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/sediff/lib/sediff.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js
index 1ea2f41dfaca..4919b7998d41 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js
@@ -34,10 +34,10 @@ var ndarray = require( './ndarray.js' );
 * @param {PositiveInteger} N - number of indexed elements
 * @param {Float32Array} x - input array
 * @param {integer} strideX - stride length for `x`
-* @param {PositiveInteger} N1 - number of indexed elements for `prepend`
+* @param {PositiveInteger} N1 - number of indexed elements to `prepend`
 * @param {Float32Array} prepend - prepend array
 * @param {integer} strideP - stride length for `prepend`
-* @param {PositiveInteger} N2 - number of indexed elements for `append`
+* @param {PositiveInteger} N2 - number of indexed elements to `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/sediff/lib/sediff.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js
index df646b2e850e..4726efed8e03 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js
@@ -33,10 +33,10 @@ var addon = require( './../src/addon.node' );
 * @param {PositiveInteger} N - number of indexed elements
 * @param {Float32Array} x - input array
 * @param {integer} strideX - stride length for `x`
-* @param {PositiveInteger} N1 - number of indexed elements for `prepend`
+* @param {PositiveInteger} N1 - number of indexed elements to `prepend`
 * @param {Float32Array} prepend - prepend array
 * @param {integer} strideP - stride length for `prepend`
-* @param {PositiveInteger} N2 - number of indexed elements for `append`
+* @param {PositiveInteger} N2 - number of indexed elements to `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/sediff/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c
index f3c6b1c4b3b9..2a87f00edc5e 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c
@@ -27,10 +27,10 @@
 * @param N          number of indexed elements
 * @param X          input array
 * @param strideX    stride length for X
-* @param N1         number of indexed elements for Prepend
+* @param N1         number of indexed elements to Prepend
 * @param Prepend    prepend array
 * @param strideP    stride length for Prepend
-* @param N2         number of indexed elements for Append
+* @param N2         number of indexed elements to Append
 * @param Append     append array
 * @param strideA    stride length for Append
 * @param Out        output array
@@ -51,11 +51,11 @@ void API_SUFFIX(stdlib_strided_sediff)( const CBLAS_INT N, const float *X, const
 * @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 N1         number of indexed elements to 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 N2         number of indexed elements to Append
 * @param Append     append array
 * @param strideA    stride length for Append
 * @param offsetA    starting index for Append