npm package: @stdlib/complex-float64
Description: Double-precision complex number functions.
Author: The Stdlib Authors
Latest version: 0.4.1

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<details>
  <summary>
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# Complex128

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

> Double-precision complex floating-point number functions.

<section class="installation">

## Installation

```bash
npm install @stdlib/complex-float64
```

</section>

<section class="usage">

## Usage

```javascript
var complex = require( '@stdlib/complex-float64' );
```

#### complex

Namespace containing double-precision complex floating-point number functions.

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

The namespace contains the following sub-namespaces:

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

<div class="namespace-toc">

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

</div>

<!-- </toc> -->

The namespace contains the following functions:

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

<div class="namespace-toc">

-   <span class="signature">[`conj( z )`][@stdlib/complex/float64/conj]</span><span class="delimiter">: </span><span class="description">return the complex conjugate of a double-precision complex floating-point number.</span>
-   <span class="signature">[`Complex128( real, imag )`][@stdlib/complex/float64/ctor]</span><span class="delimiter">: </span><span class="description">128-bit complex number.</span>
-   <span class="signature">[`imag( z )`][@stdlib/complex/float64/imag]</span><span class="delimiter">: </span><span class="description">return the imaginary component of a double-precision complex floating-point number.</span>
-   <span class="signature">[`parseComplex128( str )`][@stdlib/complex/float64/parse]</span><span class="delimiter">: </span><span class="description">parse a string representation of a 128-bit complex number.</span>
-   <span class="signature">[`real( z )`][@stdlib/complex/float64/real]</span><span class="delimiter">: </span><span class="description">return the real component of a double-precision complex floating-point number.</span>
-   <span class="signature">[`reim( z )`][@stdlib/complex/float64/reim]</span><span class="delimiter">: </span><span class="description">return the real and imaginary components of a double-precision complex floating-point number.</span>
-   <span class="signature">[`reviveComplex128( key, value )`][@stdlib/complex/float64/reviver]</span><span class="delimiter">: </span><span class="description">revive a JSON-serialized 128-bit complex number.</span>

</div>

<!-- </toc> -->

</section>

<!-- /.usage -->

<!-- Package notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- TODO: better examples -->

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

```javascript
var objectKeys = require( '@stdlib/utils-keys' );
var ns = require( '@stdlib/complex-float64' );

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 -->

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<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; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

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[npm-image]: http://img.shields.io/npm/v/@stdlib/complex-float64.svg
[npm-url]: https://npmjs.org/package/@stdlib/complex-float64

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[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/complex-float64/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/complex-float64?branch=main

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[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-float64/tree/deno
[deno-readme]: https://github.com/stdlib-js/complex-float64/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/complex-float64/tree/umd
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[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/complex-float64/main/LICENSE

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

[@stdlib/complex/float64/conj]: https://www.npmjs.com/package/@stdlib/complex-float64-conj

[@stdlib/complex/float64/ctor]: https://www.npmjs.com/package/@stdlib/complex-float64-ctor

[@stdlib/complex/float64/imag]: https://www.npmjs.com/package/@stdlib/complex-float64-imag

[@stdlib/complex/float64/parse]: https://www.npmjs.com/package/@stdlib/complex-float64-parse

[@stdlib/complex/float64/real]: https://www.npmjs.com/package/@stdlib/complex-float64-real

[@stdlib/complex/float64/reim]: https://www.npmjs.com/package/@stdlib/complex-float64-reim

[@stdlib/complex/float64/reviver]: https://www.npmjs.com/package/@stdlib/complex-float64-reviver

[@stdlib/complex/float64/base]: https://www.npmjs.com/package/@stdlib/complex-float64-base

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</section>

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