Thyra::MultipliedLinearOpBase< Scalar > Class Template Reference

Interface class for implicitly multiplied linear operators. More...

#include <Thyra_MultipliedLinearOpBase.hpp>

List of all members.

Pure virtual functions that must be overridden by subclasses

virtual int numOps () const =0
 Returns the number of constituent operators.
virtual bool opIsConst (const int k) const =0
 Determine if the kth constituent operator is const-only or not.
virtual Teuchos::RefCountPtr<
LinearOpBase< Scalar > > 
getNonconstOp (const int k)=0
 Return the kth non-constant constituent operator.
virtual Teuchos::RefCountPtr<
const LinearOpBase< Scalar > > 
getOp (const int k) const =0
 Return the kth constant constituent operator.


Detailed Description

template<class Scalar>
class Thyra::MultipliedLinearOpBase< Scalar >

Interface class for implicitly multiplied linear operators.

This interface represents a multiplied linear operator M of the form:

 
 M = Op[0] * Op[1] * ... * Op[numOps-1]
 

where Op[] is an array of numOps LinearOpBase objects. Of course the operator M is not constructed explicitly but instead just applies the constituent linear operators accordingly using temporaries.

In other words, subclasses define apply() as:


 y = alpha*M*x + beta*y
   = alpha * ( Op[0] * ( Op[1] * ( .... ( Op[numOps-1] * x ) ... ) ) ) + beta * y
 

Definition at line 60 of file Thyra_MultipliedLinearOpBase.hpp.


Member Function Documentation

template<class Scalar>
virtual int Thyra::MultipliedLinearOpBase< Scalar >::numOps  )  const [pure virtual]
 

Returns the number of constituent operators.

A return value of 0 indicates that this is not fully initialized.

template<class Scalar>
virtual bool Thyra::MultipliedLinearOpBase< Scalar >::opIsConst const int  k  )  const [pure virtual]
 

Determine if the kth constituent operator is const-only or not.

Parameters:
k [in] The zero-based index of the constituent operator to return.
Preconditions:

template<class Scalar>
virtual Teuchos::RefCountPtr<LinearOpBase<Scalar> > Thyra::MultipliedLinearOpBase< Scalar >::getNonconstOp const int  k  )  [pure virtual]
 

Return the kth non-constant constituent operator.

Parameters:
k [in] The zero-based index of the constituent operator to return.
Preconditions:
  • 0 <= k < this->numOps()
  • this->opIsConst(k)==false

template<class Scalar>
virtual Teuchos::RefCountPtr<const LinearOpBase<Scalar> > Thyra::MultipliedLinearOpBase< Scalar >::getOp const int  k  )  const [pure virtual]
 

Return the kth constant constituent operator.

Parameters:
k [in] The zero-based index of the constituent operator to return.
Preconditions:


The documentation for this class was generated from the following file:
Generated on Thu Sep 18 12:32:13 2008 for Extended Thyra ANA Operator/Vector Interfaces by doxygen 1.3.9.1