sgpp::pde::OperationMatrixLTwoDotExplicitLinear Class Reference

Explicit representation of the matrix \((\Phi_i,\Phi_j)_{L2}\) for a sparse grid. More...

#include <OperationMatrixLTwoDotExplicitLinear.hpp>

Inheritance diagram for sgpp::pde::OperationMatrixLTwoDotExplicitLinear:

Public Member Functions
void	buildMatrixWithBounds (sgpp::base::DataMatrix *mat, sgpp::base::Grid *grid, size_t i_start=0, size_t i_end=0, size_t j_start=0, size_t j_end=0)
	generalization of "buildMatrix" function, creates L2-dot-product matrix for specified bounds
virtual void	mult (sgpp::base::DataVector &alpha, sgpp::base::DataVector &result)
	Implementation of standard matrix multiplication.
	OperationMatrixLTwoDotExplicitLinear ()
	Constructor that only builds the object, without initialization.
	OperationMatrixLTwoDotExplicitLinear (sgpp::base::DataMatrix *m, sgpp::base::Grid *grid)
	Constructor that uses an external matrix pointer to construct the matrix, i.e.
	OperationMatrixLTwoDotExplicitLinear (sgpp::base::Grid *grid)
	Constructor that creates an own matrix i.e.
virtual	~OperationMatrixLTwoDotExplicitLinear ()
	Destructor.
Public Member Functions inherited from sgpp::base::OperationMatrix
	OperationMatrix ()
	Constructor.
virtual	~OperationMatrix ()
	Destructor.

Detailed Description

Explicit representation of the matrix \((\Phi_i,\Phi_j)_{L2}\) for a sparse grid.

Constructor & Destructor Documentation

OperationMatrixLTwoDotExplicitLinear() [1/3]

sgpp::pde::OperationMatrixLTwoDotExplicitLinear::OperationMatrixLTwoDotExplicitLinear

(

)

Constructor that only builds the object, without initialization.

OperationMatrixLTwoDotExplicitLinear() [2/3]

sgpp::pde::OperationMatrixLTwoDotExplicitLinear::OperationMatrixLTwoDotExplicitLinear	(	sgpp::base::DataMatrix *	m,
		sgpp::base::Grid *	grid
	)

Constructor that uses an external matrix pointer to construct the matrix, i.e.

matrix is NOT destroyed by the destructor of OperationMatrixLTwoDotExplicitLinearFullGrid

Parameters

m	pointer to datamatrix of size (number of grid point) x (number of grid points)
grid	the sparse grid

References grid(), and m.

OperationMatrixLTwoDotExplicitLinear() [3/3]

sgpp::pde::OperationMatrixLTwoDotExplicitLinear::OperationMatrixLTwoDotExplicitLinear ( sgpp::base::Grid *  grid )

explicit

Constructor that creates an own matrix i.e.

matrix is destroyed by the destructor of OperationMatrixLTwoDotExplicitLinearFullGrid

Parameters

grid	the sparse grid

References grid().

~OperationMatrixLTwoDotExplicitLinear()

sgpp::pde::OperationMatrixLTwoDotExplicitLinear::~OperationMatrixLTwoDotExplicitLinear ( )

virtual

Destructor.

Member Function Documentation

buildMatrixWithBounds()

void sgpp::pde::OperationMatrixLTwoDotExplicitLinear::buildMatrixWithBounds ( sgpp::base::DataMatrix *  mat, sgpp::base::Grid *  grid, size_t  i_start = 0, size_t  i_end = 0, size_t  j_start = 0, size_t  j_end = 0  )

inline

generalization of "buildMatrix" function, creates L2-dot-product matrix for specified bounds

Parameters

mat	matrix for storage of L2 producs
grid	the underlying grid
i_start	start index for row iteration
i_end	end index for row iteration
j_start	start index for column iteration
j_end	end index for column iteration

References sgpp::base::DataMatrix::get(), grid(), level, and sgpp::base::DataMatrix::set().

mult()

void sgpp::pde::OperationMatrixLTwoDotExplicitLinear::mult ( sgpp::base::DataVector &  alpha, sgpp::base::DataVector &  result  )

virtual

Implementation of standard matrix multiplication.

Parameters

alpha	DataVector that is multiplied to the matrix
result	DataVector into which the result of multiplication is stored

Implements sgpp::base::OperationMatrix.

References alpha, sgpp::base::DataMatrix::getNcols(), sgpp::base::DataMatrix::getNrows(), sgpp::base::DataMatrix::getPointer(), and sgpp::base::DataVector::getSize().

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

• pde/src/sgpp/pde/operation/hash/OperationMatrixLTwoDotExplicitLinear.hpp
• pde/src/sgpp/pde/operation/hash/OperationMatrixLTwoDotExplicitLinear.cpp