# Sine > Compute the [sine][sine] of a number.
## Usage ```javascript var sin = require( '@stdlib/math/base/special/sin' ); ``` #### sin( x ) Computes the [sine][sine] of a `number` (in radians). ```javascript var v = sin( 0.0 ); // returns ~0.0 v = sin( 3.141592653589793/2.0 ); // returns ~1.0 v = sin( -3.141592653589793/6.0 ); // returns ~-0.5 ```
## Examples ```javascript var linspace = require( '@stdlib/array/linspace' ); var TWO_PI = require( '@stdlib/constants/float64/two-pi' ); var sin = require( '@stdlib/math/base/special/sin' ); var x = linspace( 0.0, TWO_PI, 100 ); var i; for ( i = 0; i < x.length; i++ ) { console.log( sin( x[ i ] ) ); } ```