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Merge branch 'develop' into migrate-dcumaxabs-3
Signed-off-by: Athan <kgryte@gmail.com>
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‎.github/workflows/good_first_issue.yml

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GH_REPO: ${{ github.repository }}
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NUMBER: ${{ github.event.issue.number }}
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BODY: |
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# :rotating_light: Important: PLEASE READ :rotating_light:
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# :wave: Important: PLEASE READ :wave:
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This issue has been labeled as a **good first issue** and is available for anyone to work on.
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‎.mailmap

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# A
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Aayush Khanna <aayushiitbhu23@gmail.com> <96649223+aayush0325@users.noreply.github.com>
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Aayush Khanna <aayushiitbhu23@gmail.com> <ayush25khanna@gmail.com>
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Aayush Khanna <aayushiitbhu23@gmail.com> aayush0325
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Abhijit Raut <abhijitmraut8010@gmail.com> <121740684+AbhijitRaut04@users.noreply.github.com>

‎lib/node_modules/@stdlib/lapack/base/clacgv/README.md

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<!--
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@license Apache-2.0
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Copyright (c) 2025 The Stdlib Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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# clacgv
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> Conjugate each element in a single-precision complex floating-point vector.
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<section class="usage">
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## Usage
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```javascript
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var clacgv = require( '@stdlib/lapack/base/clacgv' );
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```
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#### clacgv( N, cx, strideCX )
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Conjugates each element in a single-precision complex floating-point vector.
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```javascript
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var Complex64Array = require( '@stdlib/array/complex64' );
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var realf = require( '@stdlib/complex/float32/real' );
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var imagf = require( '@stdlib/complex/float32/imag' );
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var cx = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
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clacgv( 2, cx, 1 );
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var z = cx.get( 0 );
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// returns <Complex64>
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var re = realf( z );
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// returns 1.0
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var im = imagf( z );
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// returns -2.0
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```
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The function has the following parameters:
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- **N**: number of indexed elements.
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- **cx**: input [`Complex64Array`][@stdlib/array/complex64].
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- **strideCX**: stride length for `cx`.
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The `N` and stride parameters determine which elements in `cx` are conjugated. For example, to conjugate every other element in `cx`,
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```javascript
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var Complex64Array = require( '@stdlib/array/complex64' );
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var realf = require( '@stdlib/complex/float32/real' );
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var imagf = require( '@stdlib/complex/float32/imag' );
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var cx = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );
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clacgv( 2, cx, 2 );
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var z = cx.get( 0 );
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// returns <Complex64>
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var re = realf( z );
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// returns 1.0
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var im = imagf( z );
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// returns -2.0
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```
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Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
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<!-- eslint-disable stdlib/capitalized-comments -->
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```javascript
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var Complex64Array = require( '@stdlib/array/complex64' );
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var Complex64 = require( '@stdlib/complex/float32/ctor' );
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var realf = require( '@stdlib/complex/float32/real' );
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var imagf = require( '@stdlib/complex/float32/imag' );
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// Initial array:
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var cx0 = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );
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// Create an offset view:
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var cx1 = new Complex64Array( cx0.buffer, cx0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
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// Conjugate every element in `cx1`:
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clacgv( 3, cx1, 1 );
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var z = cx0.get( 1 );
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// returns <Complex64>
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var re = realf( z );
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// returns 3.0
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var im = imagf( z );
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// returns -4.0
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```
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#### clacgv.ndarray( N, cx, strideCX, offsetCX )
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Conjugates each element in a single-precision floating-point vector using alternative indexing semantics.
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```javascript
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var Complex64Array = require( '@stdlib/array/complex64' );
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var realf = require( '@stdlib/complex/float32/real' );
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var imagf = require( '@stdlib/complex/float32/imag' );
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var cx = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
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clacgv.ndarray( 3, cx, 1, 0 );
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var z = cx.get( 0 );
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// returns <Complex64>
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var re = realf( z );
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// returns 1.0
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var im = imagf( z );
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// returns -2.0
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```
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The function has the following additional parameters:
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- **offsetCX**: starting index for `cx`.
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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 conjugate every other element in the input strided array starting from the second element,
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```javascript
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var Complex64Array = require( '@stdlib/array/complex64' );
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var realf = require( '@stdlib/complex/float32/real' );
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var imagf = require( '@stdlib/complex/float32/imag' );
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var cx = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );
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clacgv.ndarray( 2, cx, 2, 1 );
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var z = cx.get( 3 );
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// returns <Complex64>
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var re = realf( z );
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// returns 7.0
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var im = imagf( z );
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// returns -8.0
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```
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</section>
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<!-- /.usage -->
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<section class="notes">
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## Notes
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- If `N <= 0`, both functions return `cx` unchanged.
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- `clacgv()` corresponds to the [LAPACK][lapack] BLAS-like level 1 routine [`clacgv`][clacgv].
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</section>
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<!-- /.notes -->
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<section class="examples">
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## Examples
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<!-- eslint no-undef: "error" -->
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```javascript
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var discreteUniform = require( '@stdlib/random/base/discrete-uniform' );
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var filledarrayBy = require( '@stdlib/array/filled-by' );
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var Complex64 = require( '@stdlib/complex/float32/ctor' );
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var clacgv = require( '@stdlib/lapack/base/clacgv' );
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function rand() {
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return new Complex64( discreteUniform( 0, 10 ), discreteUniform( -5, 5 ) );
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}
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var cx = filledarrayBy( 10, 'complex64', rand );
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console.log( cx.toString() );
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// Conjugate elements:
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clacgv( cx.length, cx, 1 );
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console.log( cx.get( cx.length-1 ).toString() );
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```
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</section>
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<!-- /.examples -->
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<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
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<section class="related">
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</section>
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<!-- /.related -->
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<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
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<section class="links">
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[lapack]: https://www.netlib.org/lapack
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[clacgv]: https://www.netlib.org/lapack/explore-html/d9/d50/group__lacgv_ga689d8db6749fa9b193ff8520bfd6b2e9.html#ga689d8db6749fa9b193ff8520bfd6b2e9
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[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
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[@stdlib/array/complex64]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/complex64
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</section>
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<!-- /.links -->

‎lib/node_modules/@stdlib/lapack/base/clacgv/benchmark/benchmark.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var bench = require( '@stdlib/bench' );
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var uniform = require( '@stdlib/random/array/uniform' );
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var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
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var pow = require( '@stdlib/math/base/special/pow' );
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var Complex64Array = require( '@stdlib/array/complex64' );
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var pkg = require( './../package.json' ).name;
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var clacgv = require( './../lib/clacgv.js' );
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// VARIABLES //
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var options = {
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'dtype': 'float32'
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};
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// FUNCTIONS //
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/**
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* Creates a benchmark function.
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*
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* @private
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* @param {PositiveInteger} len - array length
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* @returns {Function} benchmark function
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*/
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function createBenchmark( len ) {
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var cxbuf;
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var cx;
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cxbuf = uniform( len*2, -100.0, 100.0, options );
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cx = new Complex64Array( cxbuf.buffer );
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return benchmark;
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/**
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* Benchmark function.
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*
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* @private
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* @param {Benchmark} b - benchmark instance
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*/
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function benchmark( b ) {
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var i;
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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clacgv( cx.length, cx, 1 );
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if ( isnanf( cxbuf[ i%(len*2) ] ) ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( isnanf( cxbuf[ i%(len*2) ] ) ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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}
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}
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// MAIN //
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/**
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* Main execution sequence.
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*
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* @private
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*/
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function main() {
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var len;
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var min;
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var max;
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var f;
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var i;
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min = 1; // 10^min
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max = 6; // 10^max
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for ( i = min; i <= max; i++ ) {
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len = pow( 10, i );
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f = createBenchmark( len );
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bench( pkg+':len='+len, f );
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}
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}
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main();

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