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add logAbsDeterminant()

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move log and exp functors from Array to Core
update documentation
This commit is contained in:
Benoit Jacob
2009-08-24 09:46:17 -04:00
parent f31b5a7114
commit b8106e97b4
6 changed files with 87 additions and 70 deletions
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32
Eigen/src/Array/CwiseOperators.h
View File

@@ -43,38 +43,6 @@ Cwise<ExpressionType>::sqrt() const
return _expression();
}
/** \array_module
*
* \returns an expression of the coefficient-wise exponential of *this.
*
* Example: \include Cwise_exp.cpp
* Output: \verbinclude Cwise_exp.out
*
* \sa pow(), log(), sin(), cos()
*/
template<typename ExpressionType>
inline const EIGEN_CWISE_UNOP_RETURN_TYPE(ei_scalar_exp_op)
Cwise<ExpressionType>::exp() const
{
return _expression();
}
/** \array_module
*
* \returns an expression of the coefficient-wise logarithm of *this.
*
* Example: \include Cwise_log.cpp
* Output: \verbinclude Cwise_log.out
*
* \sa exp()
*/
template<typename ExpressionType>
inline const EIGEN_CWISE_UNOP_RETURN_TYPE(ei_scalar_log_op)
Cwise<ExpressionType>::log() const
{
return _expression();
}
/** \array_module
*
* \returns an expression of the coefficient-wise cosine of *this.

34
Eigen/src/Array/Functors.h
View File

@@ -69,40 +69,6 @@ struct ei_functor_traits<ei_scalar_sqrt_op<Scalar> >
};
};
/** \internal
*
* \array_module
*
* \brief Template functor to compute the exponential of a scalar
*
* \sa class CwiseUnaryOp, Cwise::exp()
*/
template<typename Scalar> struct ei_scalar_exp_op EIGEN_EMPTY_STRUCT {
inline const Scalar operator() (const Scalar& a) const { return ei_exp(a); }
typedef typename ei_packet_traits<Scalar>::type Packet;
inline Packet packetOp(const Packet& a) const { return ei_pexp(a); }
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_exp_op<Scalar> >
{ enum { Cost = 5 * NumTraits<Scalar>::MulCost, PacketAccess = ei_packet_traits<Scalar>::HasExp }; };
/** \internal
*
* \array_module
*
* \brief Template functor to compute the logarithm of a scalar
*
* \sa class CwiseUnaryOp, Cwise::log()
*/
template<typename Scalar> struct ei_scalar_log_op EIGEN_EMPTY_STRUCT {
inline const Scalar operator() (const Scalar& a) const { return ei_log(a); }
typedef typename ei_packet_traits<Scalar>::type Packet;
inline Packet packetOp(const Packet& a) const { return ei_plog(a); }
};
template<typename Scalar>
struct ei_functor_traits<ei_scalar_log_op<Scalar> >
{ enum { Cost = 5 * NumTraits<Scalar>::MulCost, PacketAccess = ei_packet_traits<Scalar>::HasLog }; };
/** \internal
*
* \array_module