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 ] ) ); }

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See Also

• @stdlib/math/base/special/sin: compute the sine of a number.

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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

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License

See LICENSE.

Copyright

Copyright © 2016-2022. The Stdlib Authors.