func CdfGaussianQinv(q float64, sigma float64) float64 { return float64(C.gsl_cdf_gaussian_Qinv(C.double(q), C.double(sigma))) }
// GaussianQinv returns the inverse cumulative distribution function // Qinv(x) for the ujjpper tail of a Gaussian. func GaussianQinv(Q float64, sigma float64) float64 { return float64(C.gsl_cdf_gaussian_Qinv(C.double(Q), C.double(sigma))) }