GAMMA(3f)

DESCRIPTION
GAMMA(X) computes Gamma (Gamma) of X. For positive, integer values of X the Gamma function simplifies to the factorial function Gamma(x)=(x-1)!.

STANDARD
Fortran 2008 and later

CLASS
Elemental function

SYNTAX
X = GAMMA(X)

ARGUMENTS

X Shall be of type REAL and neither zero nor a negative integer.

RETURN VALUE
The return value is of type REAL of the same kind as X.

EXAMPLE
          program test_gamma
            real :: x = 1.0
            x = gamma(x) ! returns 1.0
          end program test_gamma

SPECIFIC NAMES

Name Argument Return type Standard GAMMA(X) REAL(4) X REAL(4) GNU Extension DGAMMA(X) REAL(8) X REAL(8) GNU Extension

SEE ALSO
Logarithm of the Gamma function: LOG_GAMMA

AUTHOR

This information was taken from the GFortran documentation (https://gcc.gnu.org/onlinedocs/gcc-5.3.0/gfortran/) and converted to a manpage by AstroFloyd (http://astrofloyd.org).