From a7bb0a912e1e19cdc3041742ef90a24a225c23a4 Mon Sep 17 00:00:00 2001
From: kaustubh <kaustubh.mp007@gmail.com>
Date: Fri, 5 Dec 2025 23:21:03 +0530
Subject: [PATCH 1/5] feat: add blas/ext/base/ndarray/gsumkbn

---
 .../blas/ext/base/ndarray/gsumkbn/README.md   | 123 +++++++++++++
 .../ndarray/gsumkbn/benchmark/benchmark.js    | 102 +++++++++++
 .../ext/base/ndarray/gsumkbn/docs/repl.txt    |  34 ++++
 .../ndarray/gsumkbn/docs/types/index.d.ts     |  45 +++++
 .../base/ndarray/gsumkbn/docs/types/test.ts   |  57 ++++++
 .../base/ndarray/gsumkbn/examples/index.js    |  33 ++++
 .../ext/base/ndarray/gsumkbn/lib/index.js     |  44 +++++
 .../blas/ext/base/ndarray/gsumkbn/lib/main.js |  55 ++++++
 .../ext/base/ndarray/gsumkbn/package.json     |  69 +++++++
 .../ext/base/ndarray/gsumkbn/test/test.js     | 172 ++++++++++++++++++
 10 files changed, 734 insertions(+)
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/README.md
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/benchmark/benchmark.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/repl.txt
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/index.d.ts
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/test.ts
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/examples/index.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/index.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/package.json
 create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js

diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/README.md b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/README.md
new file mode 100644
index 000000000000..df4066f7bee4
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/README.md
@@ -0,0 +1,123 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2025 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.
+
+-->
+
+# gsumkbn
+
+> Compute the sum of all elements in a one-dimensional ndarray using an improved Kahan–Babuška algorithm.
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var gsumkbn = require( '@stdlib/blas/ext/base/ndarray/gsumkbn' );
+```
+
+#### gsumkbn( arrays )
+
+Computes the sum of all elements in a one-dimensional ndarray using an improved Kahan–Babuška algorithm.
+
+```javascript
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+
+var xbuf = [ 1.0, 3.0, 4.0, 2.0 ];
+var x = new ndarray( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );
+
+var v = gsumkbn( [ x ] );
+// returns 10.0
+```
+
+The function has the following parameters:
+
+-   **arrays**: array-like object containing a one-dimensional input ndarray.
+
+</section>
+
+<!-- /.usage -->
+
+<section class="notes">
+
+## Notes
+
+-   If provided an empty real-valued one-dimensional ndarray, the function returns `0.0`.
+
+</section>
+
+<!-- /.notes -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+var gsumkbn = require( '@stdlib/blas/ext/base/ndarray/gsumkbn' );
+
+var xbuf = discreteUniform( 10, -50, 50, {
+    'dtype': 'generic'
+});
+var x = new ndarray( 'generic', xbuf, [ xbuf.length ], [ 1 ], 0, 'row-major' );
+console.log( ndarray2array( x ) );
+
+var v = gsumkbn( [ x ] );
+console.log( v );
+```
+
+</section>
+
+<!-- /.examples -->
+
+<section class="references">
+
+## References
+
+-   Neumaier, Arnold. 1974. "Rounding Error Analysis of Some Methods for Summing Finite Sums." _Zeitschrift Für Angewandte Mathematik Und Mechanik_ 54 (1): 39–51. doi:[10.1002/zamm.19740540106][@neumaier:1974a].
+
+</section>
+
+<!-- /.references -->
+
+<!-- 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">
+
+[@neumaier:1974a]: https://doi.org/10.1002/zamm.19740540106
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/benchmark/benchmark.js
new file mode 100644
index 000000000000..3646c45101c4
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/benchmark/benchmark.js
@@ -0,0 +1,102 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+var pkg = require( './../package.json' ).name;
+var gsumkbn = require( './../lib' );
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'generic'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var xbuf;
+	var x;
+
+	xbuf = uniform( len, -10.0, 10.0, options );
+	x = new ndarray( options.dtype, xbuf, [len], [1], 0, 'row-major' );
+
+	return benchmark;
+
+	function benchmark( b ) {
+		var v;
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			v = gsumkbn( [x] );
+			if ( isnan( v ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnan( v ) ) {
+			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( pkg + ':len=' + len, f );
+	}
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/repl.txt
new file mode 100644
index 000000000000..14d6d2f91292
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/repl.txt
@@ -0,0 +1,34 @@
+
+{{alias}}( arrays )
+    Computes the sum of all elements in a one-dimensional ndarray using an
+    improved Kahan–Babuška algorithm.
+
+    If provided a real-valued empty ndarray, the function returns `0.0`.
+
+    If provided a complex-valued empty ndarray, the function returns `0+0i`.
+
+    Parameters
+    ----------
+    arrays: ArrayLikeObject<ndarray>
+        Array-like object containing a one-dimensional input ndarray.
+
+    Returns
+    -------
+    out: number|Complex
+        Sum.
+
+    Examples
+    --------
+    > var xbuf = [ 1.0, 2.0, 3.0 ];
+    > var dt = 'generic';
+    > var sh = [ xbuf.length ];
+    > var sx = [ 1 ];
+    > var ox = 0;
+    > var ord = 'row-major';
+    > var x = new {{alias:@stdlib/ndarray/ctor}}( dt, xbuf, sh, sx, ox, ord );
+    > {{alias}}( [ x ] )
+    6.0
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/index.d.ts
new file mode 100644
index 000000000000..284a8f58981d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/index.d.ts
@@ -0,0 +1,45 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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
+
+/// <reference types="@stdlib/types"/>
+
+import { typedndarray } from '@stdlib/types/ndarray';
+
+/**
+* Computes the sum of all elements in a one-dimensional ndarray using an improved Kahan–Babuška algorithm.
+*
+* @param arrays - array-like object containing an input ndarray
+* @returns sum
+*
+* @example
+* var ndarray = require( '@stdlib/ndarray/base/ctor' );
+*
+* var xbuf = [ 1.0, 3.0, 4.0, 2.0 ];
+* var x = new ndarray( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );
+*
+* var v = gsumkbn( [ x ] );
+* // returns 10.0
+*/
+declare function gsumkbn<T extends typedndarray<number> = typedndarray<number>>( arrays: [T] ): number;
+
+
+// EXPORTS //
+
+export = gsumkbn;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/test.ts
new file mode 100644
index 000000000000..b2b293526f8c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/test.ts
@@ -0,0 +1,57 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 space-in-parens */
+
+import zeros = require( '@stdlib/ndarray/zeros' );
+import gsumkbn = require( './index' );
+
+
+// TESTS //
+
+// The function returns a sum...
+{
+	const x = zeros( [10], {
+		'dtype': 'float64'
+	});
+
+	gsumkbn( [x] ); // $ExpectType number
+}
+
+// The compiler throws an error if the function is provided a first argument which is not an array of ndarrays...
+{
+	gsumkbn( '10' ); // $ExpectError
+	gsumkbn( 10 ); // $ExpectError
+	gsumkbn( true ); // $ExpectError
+	gsumkbn( false ); // $ExpectError
+	gsumkbn( null ); // $ExpectError
+	gsumkbn( undefined ); // $ExpectError
+	gsumkbn( [] ); // $ExpectError
+	gsumkbn( {} ); // $ExpectError
+	gsumkbn( ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+	const x = zeros( [10], {
+		'dtype': 'float64'
+	});
+
+	gsumkbn(); // $ExpectError
+	gsumkbn( [x], {} ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/examples/index.js
new file mode 100644
index 000000000000..fe7d31d5c554
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/examples/index.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 ndarray = require( '@stdlib/ndarray/base/ctor' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+var gsumkbn = require( './../lib' );
+
+var xbuf = discreteUniform( 10, -50, 50, {
+	'dtype': 'generic'
+});
+var x = new ndarray( 'generic', xbuf, [xbuf.length], [1], 0, 'row-major' );
+console.log( ndarray2array( x ) );
+
+var v = gsumkbn( [x] );
+console.log( v );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/index.js
new file mode 100644
index 000000000000..f76baa008801
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/index.js
@@ -0,0 +1,44 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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';
+
+/**
+* Compute the sum of all elements in a one-dimensional ndarray using an improved Kahan–Babuška algorithm.
+*
+* @module @stdlib/blas/ext/base/ndarray/gsumkbn
+*
+* @example
+* var ndarray = require( '@stdlib/ndarray/base/ctor' );
+* var gsumkbn = require( '@stdlib/blas/ext/base/ndarray/gsumkbn' );
+*
+* var xbuf = [ 1.0, 3.0, 4.0, 2.0 ];
+* var x = new ndarray( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );
+*
+* var v = gsumkbn( [ x ] );
+* // returns 10.0
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js
new file mode 100644
index 000000000000..3cd6e2a63078
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js
@@ -0,0 +1,55 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 numelDimension = require( '@stdlib/ndarray/base/numel-dimension' );
+var getStride = require( '@stdlib/ndarray/base/stride' );
+var getOffset = require( '@stdlib/ndarray/base/offset' );
+var getData = require( '@stdlib/ndarray/base/data-buffer' );
+var strided = require( '@stdlib/blas/ext/base/gsumkbn' ).ndarray;
+
+
+// MAIN //
+
+/**
+* Computes the sum of all elements in a one-dimensional ndarray using an improved Kahan–Babuška algorithm.
+*
+* @param {ArrayLikeObject<Object>} arrays - array-like object containing an input ndarray
+* @returns {(number|ComplexLike)} sum
+*
+* @example
+* var ndarray = require( '@stdlib/ndarray/base/ctor' );
+*
+* var xbuf = [ 1.0, 3.0, 4.0, 2.0 ];
+* var x = new ndarray( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );
+*
+* var v = gsumkbn( [ x ] );
+* // returns 10.0
+*/
+function gsumkbn( arrays ) {
+	var x = arrays[0];
+	return strided( numelDimension( x, 0 ), getData( x ), getStride( x, 0 ), getOffset( x ) ); // eslint-disable-line max-len
+}
+
+
+// EXPORTS //
+
+module.exports = gsumkbn;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/package.json b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/package.json
new file mode 100644
index 000000000000..a3986f61d5d4
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/package.json
@@ -0,0 +1,69 @@
+{
+  "name": "@stdlib/blas/ext/base/ndarray/gsumkbn",
+  "version": "0.0.0",
+  "description": "Compute the sum of all elements in a one-dimensional ndarray using an improved Kahan–Babuška algorithm.",
+  "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",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "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",
+    "statistics",
+    "stats",
+    "mathematics",
+    "math",
+    "blas",
+    "extended",
+    "sum",
+    "total",
+    "summation",
+    "compensated",
+    "kahan",
+    "kbn",
+    "ndarray"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js
new file mode 100644
index 000000000000..e21b1b643633
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js
@@ -0,0 +1,172 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 isnan = require( '@stdlib/math/base/assert/is-nan' );
+var isPositiveZero = require( '@stdlib/math/base/assert/is-positive-zero' );
+var ndarray = require( '@stdlib/ndarray/base/ctor' );
+var gsumkbn = require( './../lib' );
+
+
+// FUNCTIONS //
+
+/**
+* Returns a one-dimensional ndarray.
+*
+* @private
+* @param {Collection} buffer - underlying data buffer
+* @param {NonNegativeInteger} length - number of indexed elements
+* @param {integer} stride - stride length
+* @param {NonNegativeInteger} offset - index offset
+* @returns {ndarray} one-dimensional ndarray
+*/
+function vector( buffer, length, stride, offset ) {
+	return new ndarray( 'generic', buffer, [length], [stride], offset, 'row-major' );
+}
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof gsumkbn, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function has an arity of 1', function test( t ) {
+	t.strictEqual( gsumkbn.length, 1, 'has expected arity' );
+	t.end();
+});
+
+tape( 'the function computes the sum of all elements in a one-dimensional ndarray using an improved Kahan–Babuška algorithm', function test( t ) {
+	var x;
+	var v;
+
+	x = [1.0, -2.0, -4.0, 5.0, 0.0, 3.0];
+	v = gsumkbn( [vector( x, 6, 1, 0 )] );
+	t.strictEqual( v, 3.0, 'returns expected value' );
+
+	x = [-4.0, -5.0];
+	v = gsumkbn( [vector( x, 2, 1, 0 )] );
+	t.strictEqual( v, -9.0, 'returns expected value' );
+
+	x = [-0.0, 0.0, -0.0];
+	v = gsumkbn( [vector( x, 3, 1, 0 )] );
+	t.strictEqual( isPositiveZero( v ), true, 'returns expected value' );
+
+	x = [NaN];
+	v = gsumkbn( [vector( x, 1, 1, 0 )] );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+	x = [NaN, NaN];
+	v = gsumkbn( [vector( x, 2, 1, 0 )] );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'if provided an empty real-valued vector, the function returns `0.0`', function test( t ) {
+	var x;
+	var v;
+
+	x = [];
+
+	v = gsumkbn( [vector( x, 0, 1, 0 )] );
+	t.strictEqual( isPositiveZero( v ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'if provided a vector containing a single element, the function returns that element', function test( t ) {
+	var x;
+	var v;
+
+	x = [1.0];
+
+	v = gsumkbn( [vector( x, 1, 1, 0 )] );
+	t.strictEqual( v, 1.0, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports one-dimensional ndarrays having non-unit strides', function test( t ) {
+	var x;
+	var v;
+
+	x = [
+		1.0,  // 0
+		2.0,
+		2.0,  // 1
+		-7.0,
+		-2.0, // 2
+		3.0,
+		4.0,  // 3
+		2.0
+	];
+
+	v = gsumkbn( [vector( x, 4, 2, 0 )] );
+
+	t.strictEqual( v, 5.0, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports one-dimensional ndarrays having negative strides', function test( t ) {
+	var x;
+	var v;
+
+	x = [
+		1.0,  // 3
+		2.0,
+		2.0,  // 2
+		-7.0,
+		-2.0, // 1
+		3.0,
+		4.0,  // 0
+		2.0
+	];
+
+	v = gsumkbn( [vector( x, 4, -2, 6 )] );
+
+	t.strictEqual( v, 5.0, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function supports one-dimensional ndarrays having non-zero offsets', function test( t ) {
+	var x;
+	var v;
+
+	x = [
+		2.0,
+		1.0,  // 0
+		2.0,
+		-2.0, // 1
+		-2.0,
+		2.0,  // 2
+		3.0,
+		4.0   // 3
+	];
+
+	v = gsumkbn( [vector( x, 4, 2, 1 )] );
+	t.strictEqual( v, 5.0, 'returns expected value' );
+
+	t.end();
+});

From 917e79a0ccd0ba807294b6213de3e88f390ac724 Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Sun, 7 Dec 2025 02:36:26 -0800
Subject: [PATCH 2/5] docs: update copy

Signed-off-by: Athan <kgryte@gmail.com>
---
 .../@stdlib/blas/ext/base/ndarray/gsumkbn/docs/repl.txt     | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/repl.txt
index 14d6d2f91292..c1eade96705b 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/repl.txt
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/repl.txt
@@ -3,9 +3,7 @@
     Computes the sum of all elements in a one-dimensional ndarray using an
     improved Kahan–Babuška algorithm.
 
-    If provided a real-valued empty ndarray, the function returns `0.0`.
-
-    If provided a complex-valued empty ndarray, the function returns `0+0i`.
+    If provided an empty ndarray, the function returns `0.0`.
 
     Parameters
     ----------
@@ -14,7 +12,7 @@
 
     Returns
     -------
-    out: number|Complex
+    out: number
         Sum.
 
     Examples

From d6d5cc43cd796db5a937d0a7a00c537ffc525223 Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Sun, 7 Dec 2025 02:38:39 -0800
Subject: [PATCH 3/5] docs: fix type

Signed-off-by: Athan <kgryte@gmail.com>
---
 .../@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js           | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js
index 3cd6e2a63078..a89ed5f1230b 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js
@@ -33,7 +33,7 @@ var strided = require( '@stdlib/blas/ext/base/gsumkbn' ).ndarray;
 * Computes the sum of all elements in a one-dimensional ndarray using an improved Kahan–Babuška algorithm.
 *
 * @param {ArrayLikeObject<Object>} arrays - array-like object containing an input ndarray
-* @returns {(number|ComplexLike)} sum
+* @returns {number} sum
 *
 * @example
 * var ndarray = require( '@stdlib/ndarray/base/ctor' );

From 4f72a742e71416fcc3723d5f387f4c1d56de51e6 Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Sun, 7 Dec 2025 02:44:30 -0800
Subject: [PATCH 4/5] style: fix spacing

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: passed
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: passed
  - task: lint_javascript_tests
    status: passed
  - task: lint_javascript_benchmarks
    status: passed
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: passed
  - task: lint_typescript_tests
    status: passed
  - task: lint_license_headers
    status: passed
---
---
 .../ndarray/gsumkbn/benchmark/benchmark.js    |  4 +--
 .../ndarray/gsumkbn/docs/types/index.d.ts     |  2 +-
 .../base/ndarray/gsumkbn/docs/types/test.ts   |  6 ++--
 .../base/ndarray/gsumkbn/examples/index.js    |  4 +--
 .../blas/ext/base/ndarray/gsumkbn/lib/main.js |  2 +-
 .../ext/base/ndarray/gsumkbn/test/test.js     | 36 +++++++++----------
 6 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/benchmark/benchmark.js
index 3646c45101c4..dbc0b4b38cbc 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/benchmark/benchmark.js
@@ -50,7 +50,7 @@ function createBenchmark( len ) {
 	var x;
 
 	xbuf = uniform( len, -10.0, 10.0, options );
-	x = new ndarray( options.dtype, xbuf, [len], [1], 0, 'row-major' );
+	x = new ndarray( options.dtype, xbuf, [ len ], [ 1 ], 0, 'row-major' );
 
 	return benchmark;
 
@@ -60,7 +60,7 @@ function createBenchmark( len ) {
 
 		b.tic();
 		for ( i = 0; i < b.iterations; i++ ) {
-			v = gsumkbn( [x] );
+			v = gsumkbn( [ x ] );
 			if ( isnan( v ) ) {
 				b.fail( 'should not return NaN' );
 			}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/index.d.ts
index 284a8f58981d..fadecc8034fd 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/index.d.ts
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/index.d.ts
@@ -37,7 +37,7 @@ import { typedndarray } from '@stdlib/types/ndarray';
 * var v = gsumkbn( [ x ] );
 * // returns 10.0
 */
-declare function gsumkbn<T extends typedndarray<number> = typedndarray<number>>( arrays: [T] ): number;
+declare function gsumkbn<T extends typedndarray<number> = typedndarray<number>>( arrays: [ T ] ): number;
 
 
 // EXPORTS //
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/test.ts
index b2b293526f8c..f3851f84ead9 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/test.ts
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/docs/types/test.ts
@@ -30,7 +30,7 @@ import gsumkbn = require( './index' );
 		'dtype': 'float64'
 	});
 
-	gsumkbn( [x] ); // $ExpectType number
+	gsumkbn( [ x ] ); // $ExpectType number
 }
 
 // The compiler throws an error if the function is provided a first argument which is not an array of ndarrays...
@@ -48,10 +48,10 @@ import gsumkbn = require( './index' );
 
 // The compiler throws an error if the function is provided an unsupported number of arguments...
 {
-	const x = zeros( [10], {
+	const x = zeros( [ 10 ], {
 		'dtype': 'float64'
 	});
 
 	gsumkbn(); // $ExpectError
-	gsumkbn( [x], {} ); // $ExpectError
+	gsumkbn( [ x ], {} ); // $ExpectError
 }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/examples/index.js
index fe7d31d5c554..b6d8c37e54ad 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/examples/index.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/examples/index.js
@@ -26,8 +26,8 @@ var gsumkbn = require( './../lib' );
 var xbuf = discreteUniform( 10, -50, 50, {
 	'dtype': 'generic'
 });
-var x = new ndarray( 'generic', xbuf, [xbuf.length], [1], 0, 'row-major' );
+var x = new ndarray( 'generic', xbuf, [ xbuf.length ], [ 1 ], 0, 'row-major' );
 console.log( ndarray2array( x ) );
 
-var v = gsumkbn( [x] );
+var v = gsumkbn( [ x ] );
 console.log( v );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js
index a89ed5f1230b..a8ed24934c06 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/lib/main.js
@@ -45,7 +45,7 @@ var strided = require( '@stdlib/blas/ext/base/gsumkbn' ).ndarray;
 * // returns 10.0
 */
 function gsumkbn( arrays ) {
-	var x = arrays[0];
+	var x = arrays[ 0 ];
 	return strided( numelDimension( x, 0 ), getData( x ), getStride( x, 0 ), getOffset( x ) ); // eslint-disable-line max-len
 }
 
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js
index e21b1b643633..20e9d7396804 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js
@@ -40,7 +40,7 @@ var gsumkbn = require( './../lib' );
 * @returns {ndarray} one-dimensional ndarray
 */
 function vector( buffer, length, stride, offset ) {
-	return new ndarray( 'generic', buffer, [length], [stride], offset, 'row-major' );
+	return new ndarray( 'generic', buffer, [ length ], [ stride ], offset, 'row-major' );
 }
 
 
@@ -57,28 +57,28 @@ tape( 'the function has an arity of 1', function test( t ) {
 	t.end();
 });
 
-tape( 'the function computes the sum of all elements in a one-dimensional ndarray using an improved Kahan–Babuška algorithm', function test( t ) {
+tape( 'the function computes the sum of all elements in a one-dimensional ndarray', function test( t ) {
 	var x;
 	var v;
 
-	x = [1.0, -2.0, -4.0, 5.0, 0.0, 3.0];
-	v = gsumkbn( [vector( x, 6, 1, 0 )] );
+	x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ];
+	v = gsumkbn( [ vector( x, 6, 1, 0 ) ] );
 	t.strictEqual( v, 3.0, 'returns expected value' );
 
-	x = [-4.0, -5.0];
-	v = gsumkbn( [vector( x, 2, 1, 0 )] );
+	x = [ -4.0, -5.0 ];
+	v = gsumkbn( [ vector( x, 2, 1, 0 ) ] );
 	t.strictEqual( v, -9.0, 'returns expected value' );
 
-	x = [-0.0, 0.0, -0.0];
-	v = gsumkbn( [vector( x, 3, 1, 0 )] );
+	x = [ -0.0, 0.0, -0.0 ];
+	v = gsumkbn( [ vector( x, 3, 1, 0 ) ] );
 	t.strictEqual( isPositiveZero( v ), true, 'returns expected value' );
 
-	x = [NaN];
-	v = gsumkbn( [vector( x, 1, 1, 0 )] );
+	x = [ NaN ];
+	v = gsumkbn( [ vector( x, 1, 1, 0 ) ] );
 	t.strictEqual( isnan( v ), true, 'returns expected value' );
 
-	x = [NaN, NaN];
-	v = gsumkbn( [vector( x, 2, 1, 0 )] );
+	x = [ NaN, NaN ];
+	v = gsumkbn( [ vector( x, 2, 1, 0 ) ] );
 	t.strictEqual( isnan( v ), true, 'returns expected value' );
 
 	t.end();
@@ -90,7 +90,7 @@ tape( 'if provided an empty real-valued vector, the function returns `0.0`', fun
 
 	x = [];
 
-	v = gsumkbn( [vector( x, 0, 1, 0 )] );
+	v = gsumkbn( [ vector( x, 0, 1, 0 ) ] );
 	t.strictEqual( isPositiveZero( v ), true, 'returns expected value' );
 
 	t.end();
@@ -100,9 +100,9 @@ tape( 'if provided a vector containing a single element, the function returns th
 	var x;
 	var v;
 
-	x = [1.0];
+	x = [ 1.0 ];
 
-	v = gsumkbn( [vector( x, 1, 1, 0 )] );
+	v = gsumkbn( [ vector( x, 1, 1, 0 ) ] );
 	t.strictEqual( v, 1.0, 'returns expected value' );
 
 	t.end();
@@ -123,7 +123,7 @@ tape( 'the function supports one-dimensional ndarrays having non-unit strides',
 		2.0
 	];
 
-	v = gsumkbn( [vector( x, 4, 2, 0 )] );
+	v = gsumkbn( [ vector( x, 4, 2, 0 ) ] );
 
 	t.strictEqual( v, 5.0, 'returns expected value' );
 	t.end();
@@ -144,7 +144,7 @@ tape( 'the function supports one-dimensional ndarrays having negative strides',
 		2.0
 	];
 
-	v = gsumkbn( [vector( x, 4, -2, 6 )] );
+	v = gsumkbn( [ vector( x, 4, -2, 6 ) ] );
 
 	t.strictEqual( v, 5.0, 'returns expected value' );
 	t.end();
@@ -165,7 +165,7 @@ tape( 'the function supports one-dimensional ndarrays having non-zero offsets',
 		4.0   // 3
 	];
 
-	v = gsumkbn( [vector( x, 4, 2, 1 )] );
+	v = gsumkbn( [ vector( x, 4, 2, 1 ) ] );
 	t.strictEqual( v, 5.0, 'returns expected value' );
 
 	t.end();

From f25686dd822f7ea17773ec440bad48ba91c67c1d Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Sun, 7 Dec 2025 02:45:33 -0800
Subject: [PATCH 5/5] test: update desc

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

diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js
index 20e9d7396804..0167111f5930 100644
--- a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gsumkbn/test/test.js
@@ -84,7 +84,7 @@ tape( 'the function computes the sum of all elements in a one-dimensional ndarra
 	t.end();
 });
 
-tape( 'if provided an empty real-valued vector, the function returns `0.0`', function test( t ) {
+tape( 'if provided an empty ndarray, the function returns `0.0`', function test( t ) {
 	var x;
 	var v;
 
@@ -96,7 +96,7 @@ tape( 'if provided an empty real-valued vector, the function returns `0.0`', fun
 	t.end();
 });
 
-tape( 'if provided a vector containing a single element, the function returns that element', function test( t ) {
+tape( 'if provided an ndarray containing a single element, the function returns that element', function test( t ) {
 	var x;
 	var v;