# @stdlib/math-base-special-sincos

0.2.1 • Public • Published

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# sincos

Simultaneously compute the sine and cosine of a number.

## Installation

`npm install @stdlib/math-base-special-sincos`

## Usage

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

#### sincos( x )

Simultaneously computes the sine and cosine of a `number` (in radians).

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

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

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

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

Simultaneously computes the sine and cosine of a `number` (in radians) and assigns results to a provided output array.

```var Float64Array = require( '@stdlib/array-float64' );

var out = new Float64Array( 2 );

var v = sincos.assign( 0.0, out, 1, 0 );
// returns <Float64Array>[ ~0.0, ~1.0 ]

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

## Examples

```var linspace = require( '@stdlib/array-base-linspace' );
var TWO_PI = require( '@stdlib/constants-float64-two-pi' );
var sincos = require( '@stdlib/math-base-special-sincos' );

var x = linspace( 0.0, TWO_PI, 100 );

var i;
for ( i = 0; i < x.length; i++ ) {
console.log( sincos( x[ i ] ) );
}```

## Notice

This package is part of 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, see the main project repository.

## Package Sidebar

### Install

`npm i @stdlib/math-base-special-sincos`

### Repository

github.com/stdlib-js/math-base-special-sincos

stdlib.io

429

### Version

0.2.1

Apache-2.0 AND BSL-1.0

48.3 kB

13