COSH (The GNU Fortran Compiler) (original) (raw)


8.75 COSH — Hyperbolic cosine function

Synopsis:

X = COSH(X)

Description:

COSH(X) computes the hyperbolic cosine of X.

Class:

Elemental function

Arguments:

X The type shall be REAL or COMPLEX.

Return value:

The return value has same type and kind as X. If X is complex, the imaginary part of the result is in radians. If Xis REAL, the return value has a lower bound of one,\cosh (x) \geq 1.

Example:

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

Specific names:

Name Argument Return type Standard
COSH(X) REAL(4) X REAL(4) Fortran 77 and later
DCOSH(X) REAL(8) X REAL(8) Fortran 77 and later

Standard:

Fortran 77 and later, for a complex argument Fortran 2008 or later

See also:

Inverse function:
ACOSH — Inverse hyperbolic cosine function