Extended BLAS.
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> Extended basic linear algebra subprograms (BLAS).
``bash`
npm install @stdlib/blas-ext
`javascript`
var extblas = require( '@stdlib/blas-ext' );
#### extblas
Namespace for extended basic linear algebra subprograms (BLAS).
`javascript`
var o = extblas;
// returns {...}
The namespace contains the following:
- [base][@stdlib/blas/ext/base]: base (i.e., lower-level) extensions to basic linear algebra subprograms (BLAS).
- [cusum( x[, initial][, options] )][@stdlib/blas/ext/cusum]: compute the cumulative sum along one or more ndarray dimensions.
- [findIndex( x[, options], clbk[, thisArg] )][@stdlib/blas/ext/find-index]: return the index of the first element along an ndarray dimension which passes a test implemented by a predicate function.
- [findLastIndex( x[, options], clbk[, thisArg] )][@stdlib/blas/ext/find-last-index]: return the index of the last element along an ndarray dimension which passes a test implemented by a predicate function.
- [indexOf( x, searchElement[, fromIndex][, options] )][@stdlib/blas/ext/index-of]: return the first index of a specified search element along an ndarray dimension.
- [lastIndexOf( x, searchElement[, fromIndex][, options] )][@stdlib/blas/ext/last-index-of]: return the last index of a specified search element along an ndarray dimension.
- [linspace( shape, start, stop[, endpoint][, options] )][@stdlib/blas/ext/linspace]: return a new ndarray filled with linearly spaced values over a specified interval along one or more ndarray dimensions.
- [sorthp( x[, sortOrder][, options] )][@stdlib/blas/ext/sorthp]: sort an input ndarray along one or more ndarray dimensions using heapsort.
- [sum( x[, options] )][@stdlib/blas/ext/sum]: compute the sum along one or more ndarray dimensions.
- [toSortedhp( x[, sortOrder][, options] )][@stdlib/blas/ext/to-sortedhp]: return a new ndarray containing the elements of an input ndarray sorted along one or more ndarray dimensions using heapsort.
`javascript
var objectKeys = require( '@stdlib/utils-keys' );
var ns = require( '@stdlib/blas-ext' );
console.log( objectKeys( ns ) );
`
*
This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[stdlib]: https://github.com/stdlib-js/stdlib
[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors
[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/blas-ext/tree/deno
[deno-readme]: https://github.com/stdlib-js/blas-ext/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/blas-ext/tree/umd
[umd-readme]: https://github.com/stdlib-js/blas-ext/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/blas-ext/tree/esm
[esm-readme]: https://github.com/stdlib-js/blas-ext/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/blas-ext/blob/main/branches.md
[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/blas-ext/main/LICENSE
[@stdlib/blas/ext/base]: https://www.npmjs.com/package/@stdlib/blas-ext-base
[@stdlib/blas/ext/cusum]: https://www.npmjs.com/package/@stdlib/blas-ext-cusum
[@stdlib/blas/ext/find-index]: https://www.npmjs.com/package/@stdlib/blas-ext-find-index
[@stdlib/blas/ext/find-last-index]: https://www.npmjs.com/package/@stdlib/blas-ext-find-last-index
[@stdlib/blas/ext/index-of]: https://www.npmjs.com/package/@stdlib/blas-ext-index-of
[@stdlib/blas/ext/last-index-of]: https://www.npmjs.com/package/@stdlib/blas-ext-last-index-of
[@stdlib/blas/ext/linspace]: https://www.npmjs.com/package/@stdlib/blas-ext-linspace
[@stdlib/blas/ext/sorthp]: https://www.npmjs.com/package/@stdlib/blas-ext-sorthp
[@stdlib/blas/ext/sum]: https://www.npmjs.com/package/@stdlib/blas-ext-sum
[@stdlib/blas/ext/to-sortedhp]: https://www.npmjs.com/package/@stdlib/blas-ext-to-sortedhp