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sinc
Compute the cardinal sine of a number.
The normalized cardinal sine function is defined as
for any real number x
.
Installation
npm install @stdlib/math-base-special-sinc
Usage
var sinc = require( '@stdlib/math-base-special-sinc' );
sinc( x )
Computes the normalized cardinal sine of a number
.
var v = sinc( 0.5 );
// returns ~0.637
v = sinc( -1.2 );
// returns ~-0.156
v = sinc( 0.0 );
// returns 1.0
v = sinc( NaN );
// returns NaN
Examples
var linspace = require( '@stdlib/array-base-linspace' );
var sinc = require( '@stdlib/math-base-special-sinc' );
var x = linspace( -5.0, 5.0, 100 );
var i;
for ( i = 0; i < x.length; i++ ) {
console.log( sinc( x[ i ] ) );
}
See Also
-
@stdlib/math-base/special/sin
: compute the sine of a number.
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.
Community
License
See LICENSE.
Copyright
Copyright © 2016-2024. The Stdlib Authors.