Fortran Wiki
tanh

Description

tanh(x) computes the hyperbolic tangent of x.

Standard

FORTRAN 77 and later

Class

Elemental function

Syntax

x = tanh(x)

Arguments

• x - The type shall be real.

Return value

The return value is of type real and lies in the range $-1\le \tanh (x)\le 1$.

Example

program test_tanh
  real(8) :: x = 2.1_8
  x = tanh(x)
end program test_tanh

See also

atanh