dolfin::BlockMatrix Class Reference

Block Matrix. More...

#include <BlockMatrix.h>

Public Member Functions
	BlockMatrix (std::size_t m=0, std::size_t n=0)
	Constructor.
	~BlockMatrix ()
	Destructor.
void	set_block (std::size_t i, std::size_t j, std::shared_ptr< GenericMatrix > m)
	Set block.
std::shared_ptr< const GenericMatrix >	get_block (std::size_t i, std::size_t j) const
	Get block (const version)
std::shared_ptr< GenericMatrix >	get_block (std::size_t i, std::size_t j)
	Get block.
std::size_t	size (std::size_t dim) const
	Return size of given dimension.
void	zero ()
	Set all entries to zero and keep any sparse structure.
void	apply (std::string mode)
	Finalize assembly of tensor.
std::string	str (bool verbose) const
	Return informal string representation (pretty-print)
void	mult (const BlockVector &x, BlockVector &y, bool transposed=false) const
	Matrix-vector product, y = Ax.
std::shared_ptr< GenericMatrix >	schur_approximation (bool symmetry=true) const

Detailed Description

Block Matrix.

Member Function Documentation

schur_approximation()

std::shared_ptr< GenericMatrix > BlockMatrix::schur_approximation

(

bool

symmetry = true

)

const

Create a crude explicit Schur approximation of S = D - C A^-1 B of (A B; C D) If symmetry != 0, then the caller promises that B = symmetry * transpose(C).

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

• /home/fenics/shared/dolfin/dolfin/la/BlockMatrix.h
• /home/fenics/shared/dolfin/dolfin/la/BlockMatrix.cpp