hypergeometric_2F2.hpp

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#ifndef STAN_MATH_PRIM_FUN_HYPERGEOMETRIC_2F2_HPP
#define STAN_MATH_PRIM_FUN_HYPERGEOMETRIC_2F2_HPP
 
#include <stan/math/prim/meta.hpp>
#include <stan/math/prim/fun/hypergeometric_pFq.hpp>
 
namespace stan {
namespace math {
 
template <typename Ta, typename Tb, typename Tz,
          require_all_eigen_t<Ta, Tb>* = nullptr,
          require_stan_scalar_t<Tz>* = nullptr>
return_type_t<Ta, Tb, Tz> hypergeometric_2F2(const Ta& a, const Tb& b,
                                             const Tz& z) {
  if (a.size() != 2 || b.size() != 2) {
    std::stringstream msg;
    msg << "Inputs to hypergeometric 2F2 do not contain two values"
        << "a: " << a << ", b: " << b;
    throw std::domain_error(msg.str());
  }
  return hypergeometric_pFq(a, b, z);
}
}  // namespace math
}  // namespace stan
#endif