MFEM  v3.3.2 Finite element discretization library
mfem::TransposeOperator Class Reference

The transpose of a given operator. Switches the roles of the methods Mult() and MultTranspose(). More...

`#include <operator.hpp>`

Inheritance diagram for mfem::TransposeOperator:
[legend]
Collaboration diagram for mfem::TransposeOperator:
[legend]

## Public Member Functions

TransposeOperator (const Operator *a)
Construct the transpose of a given operator *a. More...

TransposeOperator (const Operator &a)
Construct the transpose of a given operator a. More...

virtual void Mult (const Vector &x, Vector &y) const
Operator application. Apply the transpose of the original Operator. More...

virtual void MultTranspose (const Vector &x, Vector &y) const
Application of the transpose. Apply the original 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 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...

Public Types inherited from mfem::Operator
enum  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...

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

The transpose of a given operator. Switches the roles of the methods Mult() and MultTranspose().

Definition at line 295 of file operator.hpp.

## Constructor & Destructor Documentation

 mfem::TransposeOperator::TransposeOperator ( const Operator * a )
inline

Construct the transpose of a given operator *a.

Definition at line 302 of file operator.hpp.

 mfem::TransposeOperator::TransposeOperator ( const Operator & a )
inline

Construct the transpose of a given operator a.

Definition at line 306 of file operator.hpp.

## Member Function Documentation

 virtual void mfem::TransposeOperator::Mult ( const Vector & x, Vector & y ) const
inlinevirtual

Operator application. Apply the transpose of the original Operator.

Implements mfem::Operator.

Definition at line 310 of file operator.hpp.

 virtual void mfem::TransposeOperator::MultTranspose ( const Vector & x, Vector & y ) const
inlinevirtual

Application of the transpose. Apply the original Operator.

Reimplemented from mfem::Operator.

Definition at line 314 of file operator.hpp.

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