RWHermQREigServer< TypeT > Class Template Reference
[Symmetric Eigenvalue Decomposition]

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

#include <rw/lapack/heigsrv.h>

Inheritance diagram for RWHermQREigServer< TypeT >:

List of all members.

Public Member Functions
	RWHermQREigServer (bool computeVecs=true)
virtual RWSymEigDecomp< double >	decompose (const RWTriDiagDecomp< TypeT > &A)
virtual bool	computeEigenVectors () const
void	computeEigenVectors (bool computeVecs)

---

Detailed Description

template<class TypeT>
class RWHermQREigServer< TypeT >

The class RWHermQREigServer<T> 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>

Examples

 #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>

void RWHermQREigServer< TypeT >::computeEigenVectors

(

bool

computeVecs

)

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

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>

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 >.