Eigen::DiagonalBase< Derived > Class Template Reference

Detailed Description

template<typename Derived>
class Eigen::DiagonalBase< Derived >

Base class for diagonal matrices and expressions.

This is the base class that is inherited by diagonal matrix and related expression types, which internally use a vector for storing the diagonal entries. Diagonal types always represent square matrices.

Template Parameters

Derived

is the derived type, a DiagonalMatrix or DiagonalWrapper.

See also

class DiagonalMatrix, class DiagonalWrapper

Inheritance diagram for Eigen::DiagonalBase< Derived >:

Public Member Functions
Scalar	coeff (Index row, Index col) const
EIGEN_CONSTEXPR Index	cols () const
Derived &	derived ()
const Derived &	derived () const
DiagonalVectorType &	diagonal ()
const DiagonalVectorType &	diagonal () const
const DiagonalInverseReturnType	inverse () const
template<typename OtherDerived >
const DiagonalProductReturnType< OtherDerived >	operator* (const DiagonalBase< OtherDerived > &other) const
template<typename MatrixDerived >
const Product< Derived, MatrixDerived, LazyProduct >	operator* (const MatrixBase< MatrixDerived > &matrix) const
const DiagonalScaleReturnType	operator* (const Scalar &scalar) const
template<typename OtherDerived >
const DiagonalSumReturnType< OtherDerived >	operator+ (const DiagonalBase< OtherDerived > &other) const
template<typename OtherDerived >
const DiagonalDifferenceReturnType< OtherDerived >	operator- (const DiagonalBase< OtherDerived > &other) const
EIGEN_CONSTEXPR Index	rows () const
DenseMatrixType	toDenseMatrix () const
Public Member Functions inherited from Eigen::EigenBase< Derived >
EIGEN_CONSTEXPR Index	cols () const EIGEN_NOEXCEPT
Derived &	derived ()
const Derived &	derived () const
EIGEN_CONSTEXPR Index	rows () const EIGEN_NOEXCEPT
EIGEN_CONSTEXPR Index	size () const EIGEN_NOEXCEPT

Additional Inherited Members
Public Types inherited from Eigen::EigenBase< Derived >
typedef Eigen::Index	Index
	The interface type of indices.

Member Function Documentation

coeff()

template<typename Derived >

Scalar Eigen::DiagonalBase< Derived >::coeff ( Index row, Index col ) const

inline

Returns

the value of the coefficient as if *this was a dense matrix.

cols()

template<typename Derived >

EIGEN_CONSTEXPR Index Eigen::DiagonalBase< Derived >::cols ( ) const

inline

Returns

the number of columns.

derived() [1/2]

template<typename Derived >

Derived & Eigen::DiagonalBase< Derived >::derived ( )

inline

Returns

a const reference to the derived object.

derived() [2/2]

template<typename Derived >

const Derived & Eigen::DiagonalBase< Derived >::derived ( ) const

inline

Returns

a reference to the derived object.

diagonal() [1/2]

template<typename Derived >

DiagonalVectorType & Eigen::DiagonalBase< Derived >::diagonal ( )

inline

Returns

a const reference to the derived object's vector of diagonal coefficients.

diagonal() [2/2]

template<typename Derived >

const DiagonalVectorType & Eigen::DiagonalBase< Derived >::diagonal ( ) const

inline

Returns

a reference to the derived object's vector of diagonal coefficients.

inverse()

template<typename Derived >

const DiagonalInverseReturnType Eigen::DiagonalBase< Derived >::inverse ( ) const

inline

Returns

the inverse *this. Computed as the coefficient-wise inverse of the diagonal.

operator*() [1/3]

template<typename Derived >

template<typename OtherDerived >

const DiagonalProductReturnType< OtherDerived > Eigen::DiagonalBase< Derived >::operator* ( const DiagonalBase< OtherDerived > & other ) const

inline

Returns

the diagonal matrix product of *this by the diagonal matrix other

operator*() [2/3]

template<typename Derived >

template<typename MatrixDerived >

const Product< Derived, MatrixDerived, LazyProduct > Eigen::DiagonalBase< Derived >::operator* ( const MatrixBase< MatrixDerived > & matrix ) const

inline

Returns

the diagonal matrix product of *this by the dense matrix, matrix

operator*() [3/3]

template<typename Derived >

const DiagonalScaleReturnType Eigen::DiagonalBase< Derived >::operator* ( const Scalar & scalar ) const

inline

Returns

the product of *this by the scalar scalar

operator+()

template<typename Derived >

template<typename OtherDerived >

const DiagonalSumReturnType< OtherDerived > Eigen::DiagonalBase< Derived >::operator+ ( const DiagonalBase< OtherDerived > & other ) const

inline

Returns

the sum of *this and the diagonal matrix other

operator-()

template<typename Derived >

template<typename OtherDerived >

const DiagonalDifferenceReturnType< OtherDerived > Eigen::DiagonalBase< Derived >::operator- ( const DiagonalBase< OtherDerived > & other ) const

inline

Returns

the difference of *this and the diagonal matrix other

rows()

template<typename Derived >

EIGEN_CONSTEXPR Index Eigen::DiagonalBase< Derived >::rows ( ) const

inline

Returns

the number of rows.

toDenseMatrix()

template<typename Derived >

DenseMatrixType Eigen::DiagonalBase< Derived >::toDenseMatrix ( ) const

inline

Constructs a dense matrix from *this. Note, this directly returns a dense matrix type, not an expression.

Returns

A dense matrix, with its diagonal entries set from the the derived object.

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The documentation for this class was generated from the following file:

• DiagonalMatrix.h