9.170. LOG_GAMMA
9.170 LOG_GAMMA — Logarithm of the Gamma function
- Description:
-
LOG_GAMMA(X)
computes the natural logarithm of the absolute value of the Gamma (\Gamma) function. - Standard:
- Fortran 2008 and later
- Class:
- Elemental function
- Syntax:
-
X = LOG_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_log_gamma real :: x = 1.0 x = lgamma(x) ! returns 0.0 end program test_log_gamma
- Specific names:
-
Name Ar