RWSymQREigServer<T>, RWHermQREigServer<T>

Module:  Linear Algebra   Group:  Symmetric Eigenvalue Decomposition classes

Does not inherit

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Members

RWHermQREigServer<DComplex>::computeEigenVectors RWHermQREigServer<DComplex>::decompose ()

RWHermQREigServer<DComplex>::operator(); () RWHermQREigServer()

RWSymQREigServer<T>::computeEigenVectors() RWSymQREigServer<T>::decompose ()

RWSymQREigServer<T>::operator(); () RWSymQREigServer()

#include <rw/lapack/seigsrv.h>

RWSymQREigServer<double> server;
RWSymEigDecomp<double> eig = server(A); // A is a
                              // RWSymBandMat<double>

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

The classes RWSymQREigServer<T> and RWHermQREigServer<T> are the servers for the QR method of computing eigenvalues. These are the default servers.

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

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

    RWSymQREigServer<double> server;     // configure a
                                              server
    server.computeEigenVectors(false);   // turn off
                                             eigenvectors
    RWSymEigDecomp<double> eig = server(A);
    return 0;
}

RWSymQREigServer(bool computeVecs=true);
RWHermQREigServer(bool computeVecs=true);

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

void
RWSymQREigServer<T>::computeEigenVectors(bool);
void
RWHermQREigServer<DComplex>::computeEigenVectors
    (bool);

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

bool
RWSymQREigServer<T>::computeEigenVectors() const;
bool
RWHermQREigServer<DComplex>::computeEigenVectors()
                                           const;

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

RWSymEigDecomp<T>
RWSymQREigServer<T>::decompose
          (const RWSymTriDiagDecomp<T>& A) const
RWSymEigDecomp<double>
RWHermQREigServer<DComplex>::decompose
          (const RWSymTriDiagDecomp<double>& A) const

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

RWSymEigDecomp<T>       RWSymQREigServer<T>::operator();
                    (const RWSymMat<T>& A) const;
RWSymEigDecomp<T>       RWSymQREigServer<T>::operator();
                    (const RWSymBandMat<T>& A) const;
RWHermEigDecomp<DComplex>    RWHermQREigServer<DComplex>::operator();
                    (const RWHermMat<DComplex>& A)
                     const;
RWHermEigDecomp<DComplex>   RWHermQREigServer<DComplex>::operator();
                   (const RWHermBandMat<DComplex>& A)
                    const;

Computes a symmetric eigenvalue decomposition.

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