func CdfUgaussianQinv(q float64) float64 { return float64(C.gsl_cdf_ugaussian_Qinv(C.double(q))) }
// UgaussianQinv returns the inverse cumulative distribution function // Qinv(x) for the upper tail of a unit Gaussian. func UgaussianQinv(Q float64) float64 { return float64(C.gsl_cdf_ugaussian_Qinv(C.double(Q))) }