@stdlib/math-base-special-cosh

cosh

Compute the hyperbolic cosine of a number.

Installation

npm install @stdlib/math-base-special-cosh

Usage

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

cosh( x )

Computes the hyperbolic cosine of x.

var v = cosh( 0.0 );
// returns 1.0

v = cosh( 2.0 );
// returns ~3.762

v = cosh( -2.0 );
// returns ~3.762

v = cosh( 710.0 );
// returns Infinity

v = cosh( NaN );
// returns NaN

Examples

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

var x = linspace( -5.0, 5.0, 100 );

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

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See Also

• @stdlib/math/base/special/cos: compute the cosine of a number.
• @stdlib/math/base/special/sinh: compute the hyperbolic sine of a number.
• @stdlib/math/base/special/tanh: compute the hyperbolic tangent 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.