MFEM  v4.0 Finite element discretization library
mfem::MatrixInverse Class Reference

Abstract data type for matrix inverse. More...

#include <matrix.hpp>

Inheritance diagram for mfem::MatrixInverse:
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Collaboration diagram for mfem::MatrixInverse:
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## Public Member Functions

MatrixInverse ()

MatrixInverse (const Matrix &mat)
Creates approximation of the inverse of square matrix. More...

Public Member Functions inherited from mfem::Solver
Solver (int s=0, bool iter_mode=false)
Initialize a square Solver with size s. More...

Solver (int h, int w, bool iter_mode=false)
Initialize a Solver with height h and width w. More...

virtual void SetOperator (const Operator &op)=0
Set/update the solver for the given operator. More...

Public Member Functions inherited from mfem::Operator
Operator (int s=0)
Construct a square Operator with given size s (default 0). More...

Operator (int h, int w)
Construct an Operator with the given height (output size) and width (input size). More...

int Height () const
Get the height (size of output) of the Operator. Synonym with NumRows(). More...

int NumRows () const
Get the number of rows (size of output) of the Operator. Synonym with Height(). More...

int Width () const
Get the width (size of input) of the Operator. Synonym with NumCols(). More...

int NumCols () const
Get the number of columns (size of input) of the Operator. Synonym with Width(). More...

virtual MemoryClass GetMemoryClass () const
Return the MemoryClass preferred by the Operator. More...

virtual void Mult (const Vector &x, Vector &y) const =0
Operator application: y=A(x). More...

virtual void MultTranspose (const Vector &x, Vector &y) const
Action of the transpose operator: y=A^t(x). The default behavior in class Operator is to generate an error. More...

virtual OperatorGetGradient (const Vector &x) const
Evaluate the gradient operator at the point x. The default behavior in class Operator is to generate an error. More...

virtual const OperatorGetProlongation () const
Prolongation operator from linear algebra (linear system) vectors, to input vectors for the operator. NULL means identity. More...

virtual const OperatorGetRestriction () const
Restriction operator from input vectors for the operator to linear algebra (linear system) vectors. NULL means identity. More...

void FormLinearSystem (const Array< int > &ess_tdof_list, Vector &x, Vector &b, Operator *&A, Vector &X, Vector &B, int copy_interior=0)
Form a constrained linear system using a matrix-free approach. More...

virtual void RecoverFEMSolution (const Vector &X, const Vector &b, Vector &x)
Reconstruct a solution vector x (e.g. a GridFunction) from the solution X of a constrained linear system obtained from Operator::FormLinearSystem(). More...

void PrintMatlab (std::ostream &out, int n=0, int m=0) const
Prints operator with input size n and output size m in Matlab format. More...

virtual ~Operator ()
Virtual destructor. More...

Type GetType () const
Return the type ID of the Operator class. More...

Public Types inherited from mfem::Operator
enum  Type {
ANY_TYPE, MFEM_SPARSEMAT, Hypre_ParCSR, PETSC_MATAIJ,
PETSC_MATIS, PETSC_MATSHELL, PETSC_MATNEST, PETSC_MATHYPRE,
PETSC_MATGENERIC
}
Enumeration defining IDs for some classes derived from Operator. More...

Public Attributes inherited from mfem::Solver
bool iterative_mode
If true, use the second argument of Mult() as an initial guess. More...

Protected Attributes inherited from mfem::Operator
int height
Dimension of the output / number of rows in the matrix. More...

int width
Dimension of the input / number of columns in the matrix. More...

## Detailed Description

Abstract data type for matrix inverse.

Definition at line 66 of file matrix.hpp.

## Constructor & Destructor Documentation

 mfem::MatrixInverse::MatrixInverse ( )
inline

Definition at line 69 of file matrix.hpp.

 mfem::MatrixInverse::MatrixInverse ( const Matrix & mat )
inline

Creates approximation of the inverse of square matrix.

Definition at line 72 of file matrix.hpp.

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