cosh

Hyperbolic cosine of each element.

Category: Mathematics > Elementary Math

Syntax

Y = cosh(X)

Description

cosh(x) = (exp(x) + exp(-x)) / 2. It is even, equals 1 at 0, and is never smaller than 1 for real input. The graph of cosh is the catenary, the shape of a hanging chain.

Input arguments

X

Numeric array of any size. Complex values are allowed.

Output arguments

Y

Array of the same size as X.

Example

Hyperbolic cosine

cosh([0 1 -1 2])

ans = 1×4

    1.0000    1.5431    1.5431    3.7622

See also

sinh tanh acosh exp