npm package: @stdlib/complex
Description: Complex numbers.
Author: The Stdlib Authors
Latest version: 0.3.3

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<details>
  <summary>
    About stdlib...
  </summary>
  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
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</details>

# Complex Numbers

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Complex number data types.

<section class="installation">

## Installation

```bash
npm install @stdlib/complex
```

</section>

<section class="usage">

## Usage

```javascript
var ns = require( '@stdlib/complex' );
```

#### ns

Complex number data types.

```javascript
var o = ns;
// returns {...}
```

The namespace contains the following sub-namespaces:

<!-- <toc pattern="+(base|float32|float64)"> -->

<div class="namespace-toc">

-   <span class="signature">[`base`][@stdlib/complex/base]</span><span class="delimiter">: </span><span class="description">base (i.e., lower-level) complex number functions.</span>
-   <span class="signature">[`float32`][@stdlib/complex/float32]</span><span class="delimiter">: </span><span class="description">single-precision complex floating-point number functions.</span>
-   <span class="signature">[`float64`][@stdlib/complex/float64]</span><span class="delimiter">: </span><span class="description">double-precision complex floating-point number functions.</span>

</div>

<!-- </toc> -->

The namespace contains the following APIs:

<!-- <toc pattern="*"> -->

<div class="namespace-toc">

-   <span class="signature">[`complex( real, imag[, dtype] )`][@stdlib/complex/cmplx]</span><span class="delimiter">: </span><span class="description">create a complex number.</span>
-   <span class="signature">[`ctors( dtype )`][@stdlib/complex/ctors]</span><span class="delimiter">: </span><span class="description">complex number constructors.</span>
-   <span class="signature">[`dtype( value )`][@stdlib/complex/dtype]</span><span class="delimiter">: </span><span class="description">return the data type of a complex number.</span>
-   <span class="signature">[`dtypes()`][@stdlib/complex/dtypes]</span><span class="delimiter">: </span><span class="description">list of complex number data types.</span>
-   <span class="signature">[`promotionRules( [dtype1, dtype2] )`][@stdlib/complex/promotion-rules]</span><span class="delimiter">: </span><span class="description">return the complex number data type with the smallest size and closest "kind" to which data types can be **safely** cast.</span>
-   <span class="signature">[`reviveComplex( key, value )`][@stdlib/complex/reviver]</span><span class="delimiter">: </span><span class="description">revive a JSON-serialized complex number.</span>

</div>

<!-- </toc> -->

</section>

<!-- /.usage -->

<section class="examples">

## Examples

<!-- TODO: better examples -->

<!-- eslint no-undef: "error" -->

```javascript
var objectKeys = require( '@stdlib/utils/keys' );
var ns = require( '@stdlib/complex' );

console.log( objectKeys( ns ) );
```

</section>

<!-- /.examples -->

<!-- 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="main-repo" >

* * *

## 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 &copy; 2016-2024. The Stdlib [Authors][stdlib-authors].

</section>

<!-- /.stdlib -->

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<section class="links">

[npm-image]: http://img.shields.io/npm/v/@stdlib/complex.svg
[npm-url]: https://npmjs.org/package/@stdlib/complex

[test-image]: https://github.com/stdlib-js/complex/actions/workflows/test.yml/badge.svg?branch=v0.3.3
[test-url]: https://github.com/stdlib-js/complex/actions/workflows/test.yml?query=branch:v0.3.3

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/complex/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/complex?branch=main

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[chat-image]: https://img.shields.io/gitter/room/stdlib-js/stdlib.svg
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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/complex/tree/deno
[deno-readme]: https://github.com/stdlib-js/complex/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/complex/tree/umd
[umd-readme]: https://github.com/stdlib-js/complex/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/complex/tree/esm
[esm-readme]: https://github.com/stdlib-js/complex/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/complex/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/complex/main/LICENSE

<!-- <toc-links> -->

[@stdlib/complex/cmplx]: https://github.com/stdlib-js/complex/tree/main/cmplx

[@stdlib/complex/ctors]: https://github.com/stdlib-js/complex/tree/main/ctors

[@stdlib/complex/dtype]: https://github.com/stdlib-js/complex/tree/main/dtype

[@stdlib/complex/dtypes]: https://github.com/stdlib-js/complex/tree/main/dtypes

[@stdlib/complex/promotion-rules]: https://github.com/stdlib-js/complex/tree/main/promotion-rules

[@stdlib/complex/reviver]: https://github.com/stdlib-js/complex/tree/main/reviver

[@stdlib/complex/base]: https://github.com/stdlib-js/complex/tree/main/base

[@stdlib/complex/float32]: https://github.com/stdlib-js/complex/tree/main/float32

[@stdlib/complex/float64]: https://github.com/stdlib-js/complex/tree/main/float64

<!-- </toc-links> -->

</section>

<!-- /.links -->