cosh

Compute the hyperbolic cosine of a number.

Usage

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

cosh( x )

Computes the hyperbolic cosine of a number (in radians).

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/math/utils/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 ] ) );
}