GAMMA(2) GAMMA(2) NAME gamma - log gamma function SYNOPSIS double gamma(double x) int signgam; DESCRIPTION Gamma returns ln |Γ(x)|. The sign of Γ(x) is returned in the external integer signgam. EXAMPLES Computation of the gamma function: errno = 0; y = gamma(x); if(errno || y > 88) error(); y = signgam*exp(y); SEE ALSO intro(2)