func CdfExponentialQinv(q float64, mu float64) float64 { return float64(C.gsl_cdf_exponential_Qinv(C.double(q), C.double(mu))) }
// ExponentialQinv returns the cumulative distribution function Qinv(x) for // the upper tail of an exponential distribution. func ExponentialQinv(Q, mu float64) float64 { return float64(C.gsl_cdf_exponential_Qinv(C.double(Q), C.double(mu))) }