RWHermQREigServer< TypeT > Class Template Reference

The default server for the QR method of computing eigenvalues. More...

#include <rw/lapack/heigsrv.h>

Inheritance diagram for RWHermQREigServer< TypeT >:

Public Member Functions
	RWHermQREigServer (bool computeVecs=true)
virtual bool	computeEigenVectors () const
void	computeEigenVectors (bool computeVecs)
virtual RWSymEigDecomp< double >	decompose (const RWTriDiagDecomp< TypeT > &A)
Public Member Functions inherited from RWHermEigServer< TypeT >
virtual RWHermEigDecomp< TypeT >	operator() (const RWHermMat< TypeT > &A)
virtual RWHermEigDecomp< TypeT >	operator() (const RWHermBandMat< TypeT > &A)

Detailed Description

template<class TypeT>
class RWHermQREigServer< TypeT >

The class RWHermQREigServer is the server for the QR method of computing eigenvalues. This is the default server.

Synopsis

#include <rw/lapack/heigsrv.h>
RWHermQREigServer<DComplex> server;
RWHermEigDecomp<DComplex> eig = server(A); // A is a
                                           // RWHermBandMat<DComplex>

Example

#include <iostream>
#include <rw/lapack/heigsrv.h>

int main()
{
    RWHermMat<DComplex> A;                     // input a matrix
    std::cin >> A;

    RWHermQREigServer<DComplex> server;        // configure a server
    server.computeEigenVectors(false);         // turn off eigenvectors
    RWHermEigDecomp<DComplex> eig = server(A);

    return 0;
}

Constructor & Destructor Documentation

template<class TypeT>

RWHermQREigServer< TypeT >::RWHermQREigServer

(

bool

computeVecs = true

)

Constructs a server. The parameter indicates whether this server should be configured to compute eigenvectors as well as eigenvalues.

Member Function Documentation

template<class TypeT>

virtual bool RWHermQREigServer< TypeT >::computeEigenVectors ( ) const

virtual

Returns true if this server is configured to compute eigenvectors as well as eigenvalues.

Implements RWHermEigServer< TypeT >.

template<class TypeT>

void RWHermQREigServer< TypeT >::computeEigenVectors

(

bool

computeVecs

)

Sets whether or not the server should compute eigenvectors as well as eigenvalues.

template<class TypeT>

virtual RWSymEigDecomp<double> RWHermQREigServer< TypeT >::decompose ( const RWTriDiagDecomp< TypeT > &  A )

virtual

Computes the eigenvalue decomposition of the tridiagonal matrix inside the tridiagonal decomposition.

Implements RWHermEigServer< TypeT >.