Stan Math Library  2.20.0
reverse mode automatic differentiation
modified_bessel_first_kind.hpp
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1 #ifndef STAN_MATH_PRIM_SCAL_FUN_MODIFIED_BESSEL_FIRST_KIND_HPP
2 #define STAN_MATH_PRIM_SCAL_FUN_MODIFIED_BESSEL_FIRST_KIND_HPP
3 
5 #include <boost/math/special_functions/bessel.hpp>
7 
8 namespace stan {
9 namespace math {
10 
36 template <typename T2>
37 inline T2 modified_bessel_first_kind(int v, const T2 z) {
38  check_not_nan("modified_bessel_first_kind", "z", z);
39 
40  return boost::math::cyl_bessel_i(v, z);
41 }
42 
43 } // namespace math
44 } // namespace stan
45 
46 #endif
fvar< T > modified_bessel_first_kind(int v, const fvar< T > &z)
void check_not_nan(const char *function, const char *name, const T_y &y)
Check if y is not NaN.

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