time-to-botec/squiggle/node_modules/@stdlib/math/base/special/cospi
NunoSempere b6addc7f05 feat: add the node modules
Necessary in order to clearly see the squiggle hotwiring.
2022-12-03 12:44:49 +00:00
..
docs feat: add the node modules 2022-12-03 12:44:49 +00:00
lib feat: add the node modules 2022-12-03 12:44:49 +00:00
package.json feat: add the node modules 2022-12-03 12:44:49 +00:00
README.md feat: add the node modules 2022-12-03 12:44:49 +00:00

cospi

Compute the cosine of a number times π.

Usage

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

cospi( x )

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

var y = cospi( 0.0 );
// returns 1.0

y = cospi( 0.5 );
// returns 0.0

y = cospi( 0.1 );
// returns ~0.951

y = cospi( NaN );
// returns NaN

Examples

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

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

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