func CdfCauchyQinv(q float64, a float64) float64 { return float64(C.gsl_cdf_cauchy_Qinv(C.double(q), C.double(a))) }
// CauchyQinv returns the cumulative distribution function Qinv(x) for // the upper tail of a cauchy distribution. func CauchyQinv(Q, a float64) float64 { return float64(C.gsl_cdf_cauchy_Qinv(C.double(Q), C.double(a))) }