1#ifndef STAN_MATH_PRIM_ERR_CHECK_3F2_CONVERGES_HPP
2#define STAN_MATH_PRIM_ERR_CHECK_3F2_CONVERGES_HPP
38template <
typename T_a1,
typename T_a2,
typename T_a3,
typename T_b1,
39 typename T_b2,
typename T_z>
41 const T_a2& a2,
const T_a3& a3,
const T_b1& b1,
42 const T_b2& b2,
const T_z& z) {
54 bool is_polynomial =
false;
72 if (is_polynomial && !is_undefined) {
75 if (
fabs(z) < 1.0 && !is_undefined) {
78 if (
fabs(z) == 1.0 && !is_undefined && b1 + b2 > a1 + a2 + a3) {
82 std::stringstream msg;
83 msg <<
"called from function '" << function <<
"', "
84 <<
"hypergeometric function 3F2 does not meet convergence "
85 <<
"conditions with given arguments. "
86 <<
"a1: " << a1 <<
", a2: " << a2 <<
", a3: " << a3 <<
", b1: " << b1
87 <<
", b2: " << b2 <<
", z: " << z;
88 throw std::domain_error(msg.str());
double value_of_rec(const fvar< T > &v)
Return the value of the specified variable.
void check_3F2_converges(const char *function, const T_a1 &a1, const T_a2 &a2, const T_a3 &a3, const T_b1 &b1, const T_b2 &b2, const T_z &z)
Check if the hypergeometric function (3F2) called with supplied arguments will converge,...
fvar< T > floor(const fvar< T > &x)
void check_not_nan(const char *function, const char *name, const T_y &y)
Check if y is not NaN.
bool is_nonpositive_integer(T x)
Returns true if the input is a nonpositive integer and false otherwise.
fvar< T > fabs(const fvar< T > &x)
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...