Stan Math Library  2.20.0
reverse mode automatic differentiation
lgamma.hpp
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1 #ifndef STAN_MATH_PRIM_MAT_FUN_LGAMMA_HPP
2 #define STAN_MATH_PRIM_MAT_FUN_LGAMMA_HPP
3 
6 
7 namespace stan {
8 namespace math {
9 
17 struct lgamma_fun {
18  template <typename T>
19  static inline T fun(const T& x) {
20  return lgamma(x);
21  }
22 };
23 
32 template <typename T>
35 }
36 
37 } // namespace math
38 } // namespace stan
39 
40 #endif
fvar< T > lgamma(const fvar< T > &x)
Return the natural logarithm of the gamma function applied to the specified argument.
Definition: lgamma.hpp:21
static T fun(const T &x)
Definition: lgamma.hpp:19
Structure to wrap lgamma() so that it can be vectorized.
Definition: lgamma.hpp:17
Eigen::Matrix< scalar_t, T::RowsAtCompileTime, T::ColsAtCompileTime > return_t
Return type for applying the function elementwise to a matrix expression template of type T...
static return_t apply(const T &x)
Return the result of applying the function defined by the template parameter F to the specified matri...

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