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, Inc. business, by Kwok C. Ng, and others. For information about FDLIBM, see http://www.netlib.org.

See Also

acos, acosh, cos

cosd

cot

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