Public Types | Public Member Functions | List of all members
Eigen::internal::scalar_digamma_op< Scalar > Struct Template Reference

Template functor to compute psi, the derivative of lgamma of a scalar. More...

#include <SpecialFunctionsFunctors.h>

Public Types

typedef packet_traits< Scalar >::type Packet
 

Public Member Functions

EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Scalar operator() (const Scalar &a) const
 
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Packet packetOp (const Packet &a) const
 

Detailed Description

template<typename Scalar>
struct Eigen::internal::scalar_digamma_op< Scalar >

Template functor to compute psi, the derivative of lgamma of a scalar.

See also
class CwiseUnaryOp, Cwise::digamma()

Member Typedef Documentation

◆ Packet

template<typename Scalar >
typedef packet_traits<Scalar>::type Eigen::internal::scalar_digamma_op< Scalar >::Packet

Member Function Documentation

◆ operator()()

template<typename Scalar >
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Scalar Eigen::internal::scalar_digamma_op< Scalar >::operator() ( const Scalar &  a) const
inline
178  {
179  using numext::digamma;
180  return digamma(a);
181  }
a
const Scalar * a
Definition: level2_cplx_impl.h:32

References a.

◆ packetOp()

template<typename Scalar >
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Packet Eigen::internal::scalar_digamma_op< Scalar >::packetOp ( const Packet &  a) const
inline
183 { return internal::pdigamma(a); }
Eigen::internal::pdigamma
EIGEN_DECLARE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS Packet pdigamma(const Packet &a)
Definition: SpecialFunctionsPacketMath.h:29

References a, and Eigen::internal::pdigamma().

The documentation for this struct was generated from the following files: