func CdfLaplacePinv(p float64, a float64) float64 { return float64(C.gsl_cdf_laplace_Pinv(C.double(p), C.double(a))) }
// LaplacePinv returns the inverse cumulative distribution function Pinv(x) for // the lower tail of a laplace distribution. func LaplacePinv(P, a float64) float64 { return float64(C.gsl_cdf_laplace_Pinv(C.double(P), C.double(a))) }