npm package: @stdlib/math-base-special-sincosf
Description: Simultaneously compute the sine and cosine of a single-precision floating-point number (in radians).
Author: The Stdlib Authors
Latest version: 0.1.1

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# sincosf

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

> Simultaneously compute the [sine][@stdlib/math/base/special/sinf] and [cosine][@stdlib/math/base/special/cosf] of a single-precision floating-point number (in radians).

<section class="installation">

## Installation

```bash
npm install @stdlib/math-base-special-sincosf
```

</section>

<section class="usage">

## Usage

```javascript
var sincosf = require( '@stdlib/math-base-special-sincosf' );
```

#### sincosf( x )

Simultaneously computes the [sine][@stdlib/math/base/special/sinf] and [cosine][@stdlib/math/base/special/cosf] of a single-precision floating-point number (in radians).

```javascript
var v = sincosf( 0.0 );
// returns [ ~0.0, ~1.0 ]

v = sincosf( 3.141592653589793/2.0 );
// returns [ ~1.0, ~0.0 ]

v = sincosf( -3.141592653589793/6.0 );
// returns [ ~-0.5, ~0.866 ]
```

#### sincosf.assign( x, out, stride, offset )

Simultaneously computes the [sine][@stdlib/math/base/special/sinf] and [cosine][@stdlib/math/base/special/cosf] of a single-precision floating-point number (in radians) and assigns the results to a provided output array.

```javascript
var Float32Array = require( '@stdlib/array-float32' );

var out = new Float32Array( 2 );

var v = sincosf.assign( 0.0, out, 1, 0 );
// returns <Float32Array>[ ~0.0, ~1.0 ]

var bool = ( v === out );
// returns true
```

</section>

<!-- /.usage -->

<section class="examples">

## Examples

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

```javascript
var uniform = require( '@stdlib/random-array-uniform' );
var TWO_PI = require( '@stdlib/constants-float32-two-pi' );
var sincosf = require( '@stdlib/math-base-special-sincosf' );

var opts = {
    'dtype': 'float32'
};
var x = uniform( 100, 0.0, TWO_PI, opts );

var y;
var i;
for ( i = 0; i < x.length; i++ ) {
    y = sincosf( x[ i ] );
    console.log( 'sincosf(%d) = [ %d, %d ]', x[ i ], y[ 0 ], y[ 1 ] );
}
```

</section>

<!-- /.examples -->

<!-- C interface documentation. -->

* * *

<section class="c">

## C APIs

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<section class="intro">

</section>

<!-- /.intro -->

<!-- C usage documentation. -->

<section class="usage">

### Usage

```c
#include "stdlib/math/base/special/sincosf.h"
```

#### stdlib_base_sincosf( x, &sine, &cosine )

Simultaneously computes the [sine][@stdlib/math/base/special/sinf] and [cosine][@stdlib/math/base/special/cosf] of a single-precision floating-point number (in radians).

```c
float cosine;
float sine;

stdlib_base_sincosf( 4.0f, &sine, &cosine );
```

The function accepts the following arguments:

-   **x**: `[in] float` input value.
-   **sine**: `[out] float*` destination for the sine.
-   **cosine**: `[out] float*` destination for the cosine.

```c
void stdlib_base_sincosf( const float x, float *sine, float *cosine );
```

</section>

<!-- /.usage -->

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

<section class="notes">

</section>

<!-- /.notes -->

<!-- C API usage examples. -->

<section class="examples">

### Examples

```c
#include "stdlib/math/base/special/sincosf.h"
#include <stdio.h>

int main( void ) {
    const float x[] = { 0.0f, 1.57f, 3.14f, 6.28f };

    float cosine;
    float sine;
    int i;
    for ( i = 0; i < 4; i++ ) {
        stdlib_base_sincosf( x[ i ], &sine, &cosine );
        printf( "sincosf(%f) = [ %f, %f ]\n", x[ i ], sine, cosine );
    }
}
```

</section>

<!-- /.examples -->

</section>

<!-- /.c -->

<!-- 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

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---

## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

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[@stdlib/math/base/special/cosf]: https://www.npmjs.com/package/@stdlib/math-base-special-cosf

[@stdlib/math/base/special/sinf]: https://www.npmjs.com/package/@stdlib/math-base-special-sinf

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</section>

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