1 #ifndef STAN_MATH_PRIM_SCAL_FUN_BESSEL_FIRST_KIND_HPP
2 #define STAN_MATH_PRIM_SCAL_FUN_BESSEL_FIRST_KIND_HPP
4 #include <boost/math/special_functions/bessel.hpp>
44 return boost::math::cyl_bessel_j(v, z);
bool check_not_nan(const char *function, const char *name, const T_y &y)
Return true if y is not NaN.
fvar< T > bessel_first_kind(int v, const fvar< T > &z)