trigamma.hpp File Reference

#include <stan/math/prim/meta.hpp>
#include <stan/math/prim/fun/constants.hpp>
#include <stan/math/prim/fun/floor.hpp>
#include <stan/math/prim/fun/inv.hpp>
#include <stan/math/prim/fun/inv_square.hpp>
#include <stan/math/prim/fun/sin.hpp>
#include <stan/math/prim/fun/square.hpp>
#include <stan/math/prim/functor/apply_scalar_unary.hpp>
#include <cmath>

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Classes
struct	stan::math::trigamma_fun
	Structure to wrap trigamma() so it can be vectorized. More...

Namespaces
namespace	stan
	The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation from C or the boost::math::lgamma implementation.
namespace	stan::math
	Matrices and templated mathematical functions.

Functions
template<typename T >
T	stan::math::trigamma_impl (const T &x)
	Return the trigamma function applied to the argument.
double	stan::math::trigamma (double u)
	Return the second derivative of the log Gamma function evaluated at the specified argument.
double	stan::math::trigamma (int u)
	Return the second derivative of the log Gamma function evaluated at the specified argument.
template<typename T , require_not_nonscalar_prim_or_rev_kernel_expression_t< T > * = nullptr, require_container_t< T > * = nullptr>
auto	stan::math::trigamma (T &&x)
	Return the elementwise application of trigamma() to specified argument container.