func Lnfact(n uint32) float64 {
return float64(C.gsl_sf_lnfact(C.uint(n)))
}
/* log(n!)
* Faster than ln(Gamma(n+1)) for n < 170; defers for larger n.
*/
func LnFact(n uint32) (r float64) {
r = float64(C.gsl_sf_lnfact(C.uint(n)))
return r
}