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https://github.com/stdlib-js/blas-base-matrix-triangles
BLAS matrix triangles.
https://github.com/stdlib-js/blas-base-matrix-triangles
array blas c fortran javascript matrix multidimensional ndarray node node-js nodejs stdlib triangle triangular types util utilities utility utils
Last synced: 21 days ago
JSON representation
BLAS matrix triangles.
- Host: GitHub
- URL: https://github.com/stdlib-js/blas-base-matrix-triangles
- Owner: stdlib-js
- License: apache-2.0
- Created: 2024-06-09T09:12:39.000Z (5 months ago)
- Default Branch: main
- Last Pushed: 2024-10-01T05:07:39.000Z (about 1 month ago)
- Last Synced: 2024-10-05T20:43:47.778Z (about 1 month ago)
- Topics: array, blas, c, fortran, javascript, matrix, multidimensional, ndarray, node, node-js, nodejs, stdlib, triangle, triangular, types, util, utilities, utility, utils
- Language: JavaScript
- Homepage: https://github.com/stdlib-js/stdlib
- Size: 145 KB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
- Citation: CITATION.cff
- Security: SECURITY.md
Awesome Lists containing this project
README
About stdlib...
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The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.
When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.
To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!
# Triangular Parts
[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url]
> BLAS matrix triangles.
## Installation
```bash
npm install @stdlib/blas-base-matrix-triangles
```
Alternatively,
- To load the package in a website via a `script` tag without installation and bundlers, use the [ES Module][es-module] available on the [`esm`][esm-url] branch (see [README][esm-readme]).
- If you are using Deno, visit the [`deno`][deno-url] branch (see [README][deno-readme] for usage intructions).
- For use in Observable, or in browser/node environments, use the [Universal Module Definition (UMD)][umd] build available on the [`umd`][umd-url] branch (see [README][umd-readme]).
The [branches.md][branches-url] file summarizes the available branches and displays a diagram illustrating their relationships.
To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.
## Usage
```javascript
var matrixTriangles = require( '@stdlib/blas-base-matrix-triangles' );
```
#### matrixTriangles()
Returns a list of BLAS matrix triangles.
```javascript
var out = matrixTriangles();
// e.g., returns [ 'upper', 'lower' ]
```
The output array contains the following types:
- `upper`: upper triangular part of a matrix.
- `lower`: lower triangular part of a matrix.
## Examples
```javascript
var contains = require( '@stdlib/array-base-assert-contains' ).factory;
var matrixTriangles = require( '@stdlib/blas-base-matrix-triangles' );
var isMatrixTriangle = contains( matrixTriangles() );
var bool = isMatrixTriangle( 'lower' );
// returns true
bool = isMatrixTriangle( 'upper' );
// returns true
bool = isMatrixTriangle( 'beep' );
// returns false
```
* * *
## C APIs
### Usage
```c
#include "stdlib/blas/base/matrix_triangles.h"
```
#### STDLIB_BLAS_MATRIX_TRIANGLE
An enumeration of BLAS matrix triangles with the following fields:
- **STDLIB_BLAS_UPPER**: upper triangular part of a matrix.
- **STDLIB_BLAS_LOWER**: lower triangular part of a matrix.
```c
#include "stdlib/blas/base/matrix_triangles.h"
const enum STDLIB_BLAS_MATRIX_TRIANGLE v = STDLIB_BLAS_LOWER;
```
### Notes
- Enumeration constants should be considered opaque values, and one should **not** rely on specific integer values.
* * *
## Notice
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].
#### Community
[![Chat][chat-image]][chat-url]
---
## License
See [LICENSE][stdlib-license].
## Copyright
Copyright © 2016-2024. The Stdlib [Authors][stdlib-authors].
[npm-image]: http://img.shields.io/npm/v/@stdlib/blas-base-matrix-triangles.svg
[npm-url]: https://npmjs.org/package/@stdlib/blas-base-matrix-triangles
[test-image]: https://github.com/stdlib-js/blas-base-matrix-triangles/actions/workflows/test.yml/badge.svg?branch=main
[test-url]: https://github.com/stdlib-js/blas-base-matrix-triangles/actions/workflows/test.yml?query=branch:main
[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/blas-base-matrix-triangles/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/blas-base-matrix-triangles?branch=main
[chat-image]: https://img.shields.io/gitter/room/stdlib-js/stdlib.svg
[chat-url]: https://app.gitter.im/#/room/#stdlib-js_stdlib:gitter.im
[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-base-matrix-triangles/tree/deno
[deno-readme]: https://github.com/stdlib-js/blas-base-matrix-triangles/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/blas-base-matrix-triangles/tree/umd
[umd-readme]: https://github.com/stdlib-js/blas-base-matrix-triangles/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/blas-base-matrix-triangles/tree/esm
[esm-readme]: https://github.com/stdlib-js/blas-base-matrix-triangles/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/blas-base-matrix-triangles/blob/main/branches.md
[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/blas-base-matrix-triangles/main/LICENSE