sgpp::base::OperationEvalGradientBsplineClenshawCurtisNaive Class Reference

Operation for evaluating B-spline linear combinations on Clenshaw-Curtis grids and their gradients. More...

#include <OperationEvalGradientBsplineClenshawCurtisNaive.hpp>

Inheritance diagram for sgpp::base::OperationEvalGradientBsplineClenshawCurtisNaive:

Public Member Functions
void	evalGradient (const DataMatrix &alpha, const DataVector &point, DataVector &value, DataMatrix &gradient) override
double	evalGradient (const DataVector &alpha, const DataVector &point, DataVector &gradient) override
	OperationEvalGradientBsplineClenshawCurtisNaive (GridStorage &storage, size_t degree)
	Constructor.
	~OperationEvalGradientBsplineClenshawCurtisNaive () override
	Destructor.
Public Member Functions inherited from sgpp::base::OperationEvalGradient
	OperationEvalGradient ()
	Constructor.
virtual	~OperationEvalGradient ()
	Destructor.

Protected Attributes
SBsplineClenshawCurtisBase	base
	1D B-spline basis
DataVector	innerDerivative
	inner derivative (temporary vector)
DataVector	pointInUnitCube
	untransformed evaluation point (temporary vector)
GridStorage &	storage
	storage of the sparse grid

Additional Inherited Members
Public Attributes inherited from sgpp::base::OperationEvalGradient
DataVector	pointInUnitCube
	untransformed evaluation point (temporary vector)

Detailed Description

Operation for evaluating B-spline linear combinations on Clenshaw-Curtis grids and their gradients.

Constructor & Destructor Documentation

OperationEvalGradientBsplineClenshawCurtisNaive()

sgpp::base::OperationEvalGradientBsplineClenshawCurtisNaive::OperationEvalGradientBsplineClenshawCurtisNaive ( GridStorage &  storage, size_t  degree  )

inline

Constructor.

Parameters

storage	storage of the sparse grid
degree	B-spline degree

~OperationEvalGradientBsplineClenshawCurtisNaive()

sgpp::base::OperationEvalGradientBsplineClenshawCurtisNaive::~OperationEvalGradientBsplineClenshawCurtisNaive ( )

inlineoverride

Destructor.

Member Function Documentation

evalGradient() [1/2]

void sgpp::base::OperationEvalGradientBsplineClenshawCurtisNaive::evalGradient ( const DataMatrix &  alpha, const DataVector &  point, DataVector &  value, DataMatrix &  gradient  )

overridevirtual

Parameters

	alpha	coefficient matrix (each column is a coefficient vector)
	point	evaluation point
[out]	value	values of the linear combination
[out]	gradient	Jacobian of the linear combination (each row is a gradient vector)

Reimplemented from sgpp::base::OperationEvalGradient.

References alpha, base, sgpp::base::BsplineClenshawCurtisBasis< LT, IT >::eval(), sgpp::base::BsplineClenshawCurtisBasis< LT, IT >::evalDx(), sgpp::base::HashGridStorage::getBoundingBox(), sgpp::base::HashGridStorage::getDimension(), sgpp::base::HashGridPoint::getIndex(), sgpp::base::BoundingBox::getIntervalWidth(), sgpp::base::HashGridPoint::getLevel(), sgpp::base::HashGridStorage::getSize(), innerDerivative, m, pointInUnitCube, sgpp::base::DataMatrix::resize(), sgpp::base::DataMatrix::setAll(), sgpp::base::DataVector::setAll(), storage, and sgpp::base::BoundingBox::transformPointToUnitCube().

evalGradient() [2/2]

double sgpp::base::OperationEvalGradientBsplineClenshawCurtisNaive::evalGradient ( const DataVector &  alpha, const DataVector &  point, DataVector &  gradient  )

overridevirtual

Parameters

	alpha	coefficient vector
	point	evaluation point
[out]	gradient	gradient of linear combination

Returns

value of the linear combination

Implements sgpp::base::OperationEvalGradient.

References sgpp::base::DataVector::add(), alpha, base, sgpp::base::BsplineClenshawCurtisBasis< LT, IT >::eval(), sgpp::base::BsplineClenshawCurtisBasis< LT, IT >::evalDx(), sgpp::base::HashGridStorage::getBoundingBox(), sgpp::base::HashGridStorage::getDimension(), sgpp::base::HashGridPoint::getIndex(), sgpp::base::BoundingBox::getIntervalWidth(), sgpp::base::HashGridPoint::getLevel(), sgpp::base::HashGridStorage::getSize(), innerDerivative, pointInUnitCube, sgpp::base::DataVector::setAll(), storage, and sgpp::base::BoundingBox::transformPointToUnitCube().

Member Data Documentation

base

SBsplineClenshawCurtisBase sgpp::base::OperationEvalGradientBsplineClenshawCurtisNaive::base

protected

1D B-spline basis

Referenced by evalGradient(), and evalGradient().

innerDerivative

DataVector sgpp::base::OperationEvalGradientBsplineClenshawCurtisNaive::innerDerivative

protected

inner derivative (temporary vector)

Referenced by evalGradient(), and evalGradient().

pointInUnitCube

DataVector sgpp::base::OperationEvalGradientBsplineClenshawCurtisNaive::pointInUnitCube

protected

untransformed evaluation point (temporary vector)

Referenced by evalGradient(), and evalGradient().

storage

GridStorage& sgpp::base::OperationEvalGradientBsplineClenshawCurtisNaive::storage

protected

storage of the sparse grid

Referenced by evalGradient(), and evalGradient().

---

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

• base/src/sgpp/base/operation/hash/OperationEvalGradientBsplineClenshawCurtisNaive.hpp
• base/src/sgpp/base/operation/hash/OperationEvalGradientBsplineClenshawCurtisNaive.cpp