1 #ifndef STAN_MATH_PRIM_SCAL_FUN_GAMMA_P_HPP
2 #define STAN_MATH_PRIM_SCAL_FUN_GAMMA_P_HPP
4 #include <boost/math/special_functions/gamma.hpp>
54 inline double gamma_p(
double x,
double a) {
var gamma_p(double a, const var &b)
fvar< T > gamma_p(const fvar< T > &x1, const fvar< T > &x2)