gamma
GAMMA(3)                      libc math functions                     GAMMA(3)
NAME
       gamma - logarithm of the gamma function
SYNOPSIS
       #include <math.h>
       double gamma (double x);
       float gammaf (float x);
       long double gammal (long double x);
DESCRIPTION
       The gamma() functions exist for compatibility reasons.  They are equiv-
       alent to lgamma() etc. Use these. Use of the name gamma() is confusing,
       since  these functions do not compute the Gamma function, but the natu-
       ral logarithm of the Gamma function.
CONFORMING TO
       Nonstandard. Compatible with previous mistakes.
SEE ALSO
       lgamma(3), signgam(3), tgamma(3)
GNU                               2002-08-10                          GAMMA(3)