HessenbergQR< T > Class Template Reference

#include <aims/math/hqr.h>

Public Member Functions
AimsData< T >	doit (AimsData< T > &, AimsData< T > &, AimsData< T > *zz=NULL)
	Hessenberg matrices' QR transformation. More...
	HessenbergQR ()
	Constructor and destructor. More...
virtual	~HessenbergQR ()
	destructor More...

Detailed Description

template<class T>
class HessenbergQR< T >

Definition at line 46 of file hqr.h.

Constructor & Destructor Documentation

HessenbergQR()

template<class T >

HessenbergQR< T >::HessenbergQR ( )

inline

Constructor and destructor.

constructor

Definition at line 53 of file hqr.h.

~HessenbergQR()

template<class T >

virtual HessenbergQR< T >::~HessenbergQR ( )

inlinevirtual

destructor

Definition at line 55 of file hqr.h.

References HessenbergQR< T >::doit().

Member Function Documentation

doit()

template<class T >

AimsData< T > HessenbergQR< T >::doit	(	AimsData< T > &	,
		AimsData< T > &	,
		AimsData< T > *	zz = NULL
	)

Hessenberg matrices' QR transformation.

\ This function is adapted from the Eispack routine 'hqr2.f'. \ This routine returns the real parts of the eigenvalues of a real upper Hessenberg matrix passed on input by the QR method. \ The second parameter is output as the imaginary parts of the eigenvalues. \

Parameters

zz

contains (on output) the real and imaginary parts of the eigenvectors. If the i-th eigenvalue is real, the i-th column of zz contains its eigenvector. If the i-th eigenvalue is complex with positive imaginary part, the i-th and (i+1)-th columns of zz contain the real and imaginary parts of its eigenvector, and an other eigenvector is formed by its complex conjugate.

Referenced by HessenbergQR< T >::~HessenbergQR().

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The documentation for this class was generated from the following file:

• aims/math/hqr.h