Stan Math Library  2.15.0
reverse mode automatic differentiation
trigamma.hpp
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1 #ifndef STAN_MATH_FWD_SCAL_FUN_TRIGAMMA_HPP
2 #define STAN_MATH_FWD_SCAL_FUN_TRIGAMMA_HPP
3 
4 #include <stan/math/fwd/core.hpp>
8 
9 namespace stan {
10  namespace math {
11 
20  template <typename T>
21  inline fvar<T> trigamma(const fvar<T>& u) {
22  return trigamma_impl(u);
23  }
24 
25  }
26 }
27 #endif
T trigamma_impl(const T &x)
Return the trigamma function applied to the argument.
Definition: trigamma.hpp:30
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

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