MATLAB Function Reference

cosh - Hyperbolic cosine

Syntax

Y = cosh(X)

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 .

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

Definition

The hyperbolic cosine can be defined as

Algorithm

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

cosd

cot