ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType > Class Template Reference

#include <deal.II/lac/shifted_matrix.h>

Public Member Functions
	ShiftedMatrixGeneralized (const MatrixType &A, const MatrixType2 &M, const double sigma)
void	shift (const double sigma)
double	shift () const
void	vmult (VectorType &dst, const VectorType &src) const
double	residual (VectorType &dst, const VectorType &src, const VectorType &rhs) const

Private Attributes
SmartPointer< const MatrixType, ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType > >	A
SmartPointer< const MatrixType2, ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType > >	M
VectorType	aux
double	sigma

Detailed Description

template<typename MatrixType, class MatrixType2, class VectorType>
class ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType >

Matrix with shifted diagonal values with respect to a certain scalar product.

Given a matrix A, this class implements a matrix-vector product with A+s M, where s is a provided shift parameter and M is the matrix representing the identity

Deprecated:

If deal.II was configured with C++11 support, use the LinearOperator class instead, see the module on linear operators for further details.

Author

Guido Kanschat, 2001

Definition at line 107 of file shifted_matrix.h.

Constructor & Destructor Documentation

ShiftedMatrixGeneralized()

template<typename MatrixType , class MatrixType2 , class VectorType >

ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType >::ShiftedMatrixGeneralized ( const MatrixType &  A, const MatrixType2 &  M, const double  sigma  )

inline

Constructor. Provide the base matrix and a shift parameter.

Definition at line 219 of file shifted_matrix.h.

Member Function Documentation

shift() [1/2]

template<typename MatrixType , class MatrixType2 , class VectorType >

void ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType >::shift ( const double  sigma )

inline

Set the shift parameter.

Definition at line 229 of file shifted_matrix.h.

shift() [2/2]

template<typename MatrixType , class MatrixType2 , class VectorType >

double ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType >::shift ( ) const

inline

Access to the shift parameter.

Definition at line 236 of file shifted_matrix.h.

vmult()

template<typename MatrixType , class MatrixType2 , class VectorType >

void ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType >::vmult ( VectorType &  dst, const VectorType &  src  ) const

inline

Matrix-vector-product.

Definition at line 245 of file shifted_matrix.h.

residual()

template<typename MatrixType , class MatrixType2 , class VectorType >

double ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType >::residual ( VectorType &  dst, const VectorType &  src, const VectorType &  rhs  ) const

inline

Residual.

Definition at line 261 of file shifted_matrix.h.

Member Data Documentation

A

template<typename MatrixType , class MatrixType2 , class VectorType >

SmartPointer<const MatrixType,ShiftedMatrixGeneralized<MatrixType,MatrixType2,VectorType> > ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType >::A

private

Storage for base matrix.

Definition at line 141 of file shifted_matrix.h.

M

template<typename MatrixType , class MatrixType2 , class VectorType >

SmartPointer<const MatrixType2,ShiftedMatrixGeneralized<MatrixType,MatrixType2,VectorType> > ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType >::M

private

Storage for mass matrix.

Definition at line 145 of file shifted_matrix.h.

aux

template<typename MatrixType , class MatrixType2 , class VectorType >

VectorType ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType >::aux

mutableprivate

Auxiliary vector.

Definition at line 150 of file shifted_matrix.h.

sigma

template<typename MatrixType , class MatrixType2 , class VectorType >

double ShiftedMatrixGeneralized< MatrixType, MatrixType2, VectorType >::sigma

private

Shift parameter.

Definition at line 155 of file shifted_matrix.h.

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

• deal.II/lac/shifted_matrix.h