1 #ifndef STAN_MATH_PRIM_MAT_FUN_DIGAMMA_HPP 2 #define STAN_MATH_PRIM_MAT_FUN_DIGAMMA_HPP 5 #include <boost/math/special_functions/digamma.hpp> 19 static inline T
fun(
const T& x) {
Structure to wrap digamma() so it can be vectorized.
var digamma(const var &a)
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...
fvar< T > digamma(const fvar< T > &x)
Return the derivative of the log gamma function at the specified argument.