Helper class for Backwards Difference schemes for 2nd order problems. More...

#include <BDF.h>

Inheritance diagram for TimeIntegration::BDFD2:

Collaboration diagram for TimeIntegration::BDFD2:

Public Member Functions
	BDFD2 (int order=2, int step_=0)
	Default constructor. More...

const std::vector< double > &	getCoefs () const override
	Returns the BDF coefficients.

Public Member Functions inherited from TimeIntegration::BDF
	BDF (int order=0)
	Default constructor. More...

virtual	~BDF ()
	Empty destructor.

void	setOrder (int order)
	Initializes the coefficients for the specified order.

int	getOrder () const
	Returns the order to be used for current time step.

int	getActualOrder () const
	Returns the order of the scheme.

short int	getDegree () const
	Returns the degree of the time derivative approximation.

bool	advanceStep (double dt=0.0, double dtn=0.0)
	Advances the time stepping scheme.

double	operator[] (int idx) const
	Indexing operator returning the idx'th coefficient.

template<class T >
T	extrapolate (const std::vector< T > &values) const
	Extrapolates values. More...

Protected Attributes
std::vector< double >	coefs2
	BDF coefficients for second time step.

Protected Attributes inherited from TimeIntegration::BDF
short int	degree
	Degree of the time derivative approximation.

int	step
	Time step counter.

std::vector< double >	coefs
	The BDF coefficients.

std::vector< double >	coefs1
	BDF coefficients for first time step.

Detailed Description

Helper class for Backwards Difference schemes for 2nd order problems.

Constructor & Destructor Documentation

explicit

Default constructor.

Parameters

[in]	order	The order of the BDF scheme
[in]	step_	Initial step position

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