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log_gamma (Rev #4, changes)

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Description

log_gamma(x) computes the natural logarithm of the absolute value of the~~(削除) Gamma (削除ここまで)(削除) ( (削除ここまで)~~(追記) Gamma function (追記ここまで)(追記) ( (追記ここまで)\\Gamma~~(削除) ) (削除ここまで)~~(追記) ). (追記ここまで)~~(削除) function. (削除ここまで)~~

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 = log_gamma(x) ! returns 0.0
end program test_log_gamma

Fortran Wiki log_gamma (Rev #4, changes)