cosh - Hyperbolic cosine

Syntax

Description

The cosh function operates element-wise on arrays. The function's domains and ranges include complex values. All angles are in radians.

Y = cosh(X) returns the hyperbolic cosine for each element of X.

Examples

Graph the hyperbolic cosine function over the domain –5 ≤ x ≤ 5.

x = -5:0.01:5; 
plot(x,cosh(x)), grid on

Definitions

The hyperbolic cosine of z is

Algorithms

cosh uses FDLIBM, which was developed at SunSoft, a Sun Microsystems business, by Kwok C. Ng, and others. For information about FDLIBM, see http://www.netlib.org.

See Also

acos | acosh | cos

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