# Fortran Wiki cosh

## Description

cosh(x) computes the hyperbolic cosine of x.

## Standard

FORTRAN 77 and later

## Class

Elemental function

## Syntax

x = cosh(x)

## Arguments

• x - The type shall be real.

## Return value

The return value is of type real and it is positive ($\mathrm{cosh}\left(x\right)\ge 0$). The return value is of the same kind as x.

## Example

program test_cosh
real(8) :: x = 1.0_8
x = cosh(x)
end program test_cosh