| MATLAB Function Reference | ![]() |
Y = cosh(X)
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.
Graph the hyperbolic cosine function over the domain
.
x = -5:0.01:5; plot(x,cosh(x)), grid on

The hyperbolic cosine can be defined as
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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.
![]() | cosd | cot | ![]() |
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