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) {
33 inline typename apply_scalar_unary<digamma_fun, T>::return_t
var digamma(const stan::math::var &a)
Structure to wrap digamma() so it can be vectorized.
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)