Time-derivative interface for DIRK. More...

Inheritance diagram for Tempus::StepperDIRKTimeDerivative< Scalar >:

Public Member Functions
	StepperDIRKTimeDerivative (Scalar s, Teuchos::RCP< const Thyra::VectorBase< Scalar > > xTilde)
	Constructor.

virtual	~StepperDIRKTimeDerivative ()
	Destructor.

virtual void	compute (Teuchos::RCP< const Thyra::VectorBase< Scalar > > x, Teuchos::RCP< Thyra::VectorBase< Scalar > > xDot, Teuchos::RCP< Thyra::VectorBase< Scalar > > xDotDot=Teuchos::null)
	Compute the time derivative.

virtual void	initialize (Scalar s, Teuchos::RCP< const Thyra::VectorBase< Scalar > > xTilde)

Private Attributes
Teuchos::RCP< const Thyra::VectorBase< Scalar > >	xTilde_

Scalar	s_

Detailed Description

template<typename Scalar>
class Tempus::StepperDIRKTimeDerivative< Scalar >

Time-derivative interface for DIRK.

Given the stage state and

$\tilde{X} = x_{n-1} +\Delta t \sum_{j=1}^{i-1} a_{ij}\,\dot{X}_{j},$

compute the DIRK stage time-derivative,

$\dot{X}_i = \frac{X_{i} - \tilde{X}}{a_{ii} \Delta t}$

$\ddot{x}$ is not used and set to null.

Constructor & Destructor Documentation

template<typename Scalar >

Tempus::StepperDIRKTimeDerivative< Scalar >::StepperDIRKTimeDerivative	(	Scalar	s,
		Teuchos::RCP< const Thyra::VectorBase< Scalar > >	xTilde
	)

inline

Constructor.

template<typename Scalar >

virtual Tempus::StepperDIRKTimeDerivative< Scalar >::~StepperDIRKTimeDerivative ( )

inlinevirtual

Destructor.

template<typename Scalar >

virtual void Tempus::StepperDIRKTimeDerivative< Scalar >::compute	(	Teuchos::RCP< const Thyra::VectorBase< Scalar > >	x,
		Teuchos::RCP< Thyra::VectorBase< Scalar > >	xDot,
		Teuchos::RCP< Thyra::VectorBase< Scalar > >	xDotDot = `Teuchos::null`
	)