BlockDiagonalMatrix< MATRIX > Class Template Reference
[Derived matrices]

Inheritance diagram for BlockDiagonalMatrix< MATRIX >:

[legend]

List of all members.

Public Member Functions
	BlockDiagonalMatrix (const MATRIX &M, const unsigned int n_blocks)
template<typename number1 , typename number2 >
void	vmult (BlockVector< number1 > &dst, const BlockVector< number2 > &src) const
template<typename number1 , typename number2 >
void	Tvmult (BlockVector< number1 > &dst, const BlockVector< number2 > &src) const
Private Attributes
unsigned int	num_blocks
SmartPointer< const MATRIX >	matrix

---

Detailed Description

template<class MATRIX>
class BlockDiagonalMatrix< MATRIX >

A matrix with several copies of the same block on the diagonal.

This matrix implements an m by m block matrix. Each diagonal block consists of the same (non-block) matrix, while off-diagonal blocks are void.

One special application is a one by one block matrix, allowing to apply the vmult of the original matrix (or preconditioner) to a block vector.

Author:

Guido Kanschat, 2000

---

Constructor & Destructor Documentation

template<class MATRIX >

BlockDiagonalMatrix< MATRIX >::BlockDiagonalMatrix	(	const MATRIX &	M,
		const unsigned int	n_blocks
	)			[inline]

Constructor for an n_blocks by n_blocks matrix with diagonal blocks M.

---

Member Function Documentation

template<class MATRIX >

template<typename number1 , typename number2 >

void BlockDiagonalMatrix< MATRIX >::vmult	(	BlockVector< number1 > &	dst,
		const BlockVector< number2 > &	src
	)			const [inline]

Matrix-vector-multiplication.

References Assert, BlockVectorBase< Vector< Number > >::block(), BlockDiagonalMatrix< MATRIX >::matrix, BlockVectorBase< Vector< Number > >::n_blocks(), and BlockDiagonalMatrix< MATRIX >::num_blocks.

template<class MATRIX >

template<typename number1 , typename number2 >

void BlockDiagonalMatrix< MATRIX >::Tvmult	(	BlockVector< number1 > &	dst,
		const BlockVector< number2 > &	src
	)			const [inline]

Transposed matrix-vector-multiplication.

References Assert, BlockVectorBase< Vector< Number > >::block(), BlockDiagonalMatrix< MATRIX >::matrix, BlockVectorBase< Vector< Number > >::n_blocks(), and BlockDiagonalMatrix< MATRIX >::num_blocks.

---

Member Data Documentation

template<class MATRIX >

unsigned int BlockDiagonalMatrix< MATRIX >::num_blocks [private]

Number of blocks.

Referenced by BlockDiagonalMatrix< MATRIX >::Tvmult(), and BlockDiagonalMatrix< MATRIX >::vmult().

template<class MATRIX >

SmartPointer<const MATRIX> BlockDiagonalMatrix< MATRIX >::matrix [private]

Diagonal entry.

Referenced by BlockDiagonalMatrix< MATRIX >::Tvmult(), and BlockDiagonalMatrix< MATRIX >::vmult().

---

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

• lac/include/lac/block_matrix.h