Automatic Differentiation
 
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trigamma.hpp
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1#ifndef STAN_MATH_FWD_FUN_TRIGAMMA_HPP
2#define STAN_MATH_FWD_FUN_TRIGAMMA_HPP
3
7
8namespace stan {
9namespace math {
10
20template <typename T>
21inline fvar<T> trigamma(const fvar<T>& u) {
22 return trigamma_impl(u);
23}
24
25} // namespace math
26} // namespace stan
27#endif
T trigamma_impl(const T &x)
Return the trigamma function applied to the argument.
Definition trigamma.hpp:37
fvar< T > trigamma(const fvar< T > &u)
Return the value of the trigamma function at the specified argument (i.e., the second derivative of t...
Definition trigamma.hpp:21
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...
This template class represents scalars used in forward-mode automatic differentiation,...
Definition fvar.hpp:40