sinpi

Compute the sine of a number times π.

Usage

var sinpi = require( '@stdlib/math/base/special/sinpi' );

sinpi( x )

Computes sin(πx) more accurately than sin(pi*x), especially for large x.

var y = sinpi( 0.0 );
// returns 0.0

y = sinpi( 0.5 );
// returns 1.0

y = sinpi( 0.9 );
// returns ~0.309

y = sinpi( NaN );
// returns NaN

Examples

var linspace = require( '@stdlib/array/base/linspace' );
var sinpi = require( '@stdlib/math/base/special/sinpi' );

var x = linspace( -100.0, 100.0, 100 );

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