The Exponential Distribution

Random: double gsl_ran_exponential (const gsl_rng * r, double mu)

This function returns a random variate from the exponential distribution with mean mu. The distribution is,

for @c{$x \ge 0$} @math{x >= 0}.

Function: double gsl_ran_exponential_pdf (double x, double mu)

This function computes the probability density @math{p(x)} at x for an exponential distribution with mean mu, using the formula given above.