DecompositionTQLI< T > Class Template Reference

#include <aims/math/tqli.h>

Public Member Functions
void	doit (AimsData< T > &, AimsData< T > &, AimsData< T > &)
	TQLI decomposition of a tridiagonal matrix. More...
	DecompositionTQLI ()
	Constructor and destructor. More...
virtual	~DecompositionTQLI ()
	destructor More...

Detailed Description

template<class T>
class DecompositionTQLI< T >

Definition at line 45 of file tqli.h.

Constructor & Destructor Documentation

DecompositionTQLI()

template<class T >

DecompositionTQLI< T >::DecompositionTQLI ( )

inline

Constructor and destructor.

constructor

Definition at line 52 of file tqli.h.

~DecompositionTQLI()

template<class T >

virtual DecompositionTQLI< T >::~DecompositionTQLI ( )

inlinevirtual

destructor

Definition at line 54 of file tqli.h.

References DecompositionTQLI< T >::doit().

Member Function Documentation

doit()

template<class T >

void DecompositionTQLI< T >::doit	(	AimsData< T > &	,
		AimsData< T > &	,
		AimsData< T > &
	)

TQLI decomposition of a tridiagonal matrix.

\ This function is adapted from the Numerical Recipes in C. \ This routine determines the eigenvalues and eigenvectors of a real, symmetric, tridiagonal matrix, or of a real, symmetric matrix previously reduced by HouseholderTridiag. \ The first parameter contains (on input) the diagonal elements of the tridiagonal matrix. On output, it is replaced by the eigenvalues. \ The second parameter is the vector of the subdiagonal elements of the tridiagonal matrix. \ The last parameter is set (on input) as an identity matrix if the eigenvectors of a tridiagonal matrix are desired, or as the matrix output by HouseholderTridiag if the matrix was previously reduced. On output, it is replaced by the normalized eigenvectors. The k-th column of this matrix corresponds to the k-th eigenvector.

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

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

• aims/math/tqli.h