Functions
double	_rgama (double(durand)(), double(dnrand)(), double alpha, double beta)
	Generate random numbers following gamma distribution (Squeeze method of Marsaglia and Tsang)

void	_rgama_r (double alpha, double beta, double r, double yy, int irev)
	Generate random numbers following gamma distribution (Squeeze method of Marsaglia and Tsang) (reverse communication version)

Detailed Description

This is the group of L6a7. Gamma random numbers.

Functions