TDecompBase.h File Reference

#include "Rtypes.h"
#include "TMatrixD.h"
#include "TMatrixDUtils.h"
#include "TObject.h"
#include "TVectorD.h"
#include <limits>

Include dependency graph for TDecompBase.h:

This graph shows which files directly or indirectly include this file:

Classes
class	TDecompBase
	Decomposition Base class. More...

Functions
void	ApplyGivens (Double_t &z1, Double_t &z2, Double_t c, Double_t s)
	Apply a Givens transformation as defined by c and s to the vector components v1 and v2 .
void	ApplyHouseHolder (const TVectorD &vc, Double_t up, Double_t b, Int_t lp, Int_t l, TMatrixDColumn &cc)
	Apply Householder-transformation.
void	ApplyHouseHolder (const TVectorD &vc, Double_t up, Double_t b, Int_t lp, Int_t l, TMatrixDRow &cr)
	Apply Householder-transformation.
void	ApplyHouseHolder (const TVectorD &vc, Double_t up, Double_t b, Int_t lp, Int_t l, TVectorD &cv)
	Apply Householder-transformation.
void	DefAplGivens (Double_t &v1, Double_t &v2, Double_t &c, Double_t &s)
	Define and apply a Givens-rotation by calculating 2 rotation parameters c and s.
void	DefGivens (Double_t v1, Double_t v2, Double_t &c, Double_t &s)
	Defines a Givens-rotation by calculating 2 rotation parameters c and s.
Bool_t	DefHouseHolder (const TVectorD &vc, Int_t lp, Int_t l, Double_t &up, Double_t &b, Double_t tol=0.0)
	Define a Householder-transformation through the parameters up and b .

Function Documentation

ApplyGivens()

void ApplyGivens	(	Double_t &	z1,
		Double_t &	z2,
		Double_t	c,
		Double_t	s
	)

Apply a Givens transformation as defined by c and s to the vector components v1 and v2 .

Definition at line 537 of file TDecompBase.cxx.

ApplyHouseHolder() [1/3]

void ApplyHouseHolder	(	const TVectorD &	vc,
		Double_t	up,
		Double_t	b,
		Int_t	lp,
		Int_t	l,
		TMatrixDColumn &	cc
	)

Apply Householder-transformation.

Definition at line 418 of file TDecompBase.cxx.

ApplyHouseHolder() [2/3]

void ApplyHouseHolder	(	const TVectorD &	vc,
		Double_t	up,
		Double_t	b,
		Int_t	lp,
		Int_t	l,
		TMatrixDRow &	cr
	)

Apply Householder-transformation.

Definition at line 389 of file TDecompBase.cxx.

ApplyHouseHolder() [3/3]

void ApplyHouseHolder	(	const TVectorD &	vc,
		Double_t	up,
		Double_t	b,
		Int_t	lp,
		Int_t	l,
		TVectorD &	cv
	)

Apply Householder-transformation.

Definition at line 447 of file TDecompBase.cxx.

DefAplGivens()

void DefAplGivens	(	Double_t &	v1,
		Double_t &	v2,
		Double_t &	c,
		Double_t &	s
	)

Define and apply a Givens-rotation by calculating 2 rotation parameters c and s.

The rotation is defined with and applied to the vector components v1 and v2.

Definition at line 505 of file TDecompBase.cxx.

DefGivens()

void DefGivens	(	Double_t	v1,
		Double_t	v2,
		Double_t &	c,
		Double_t &	s
	)

Defines a Givens-rotation by calculating 2 rotation parameters c and s.

The rotation is defined with the vector components v1 and v2.

Definition at line 476 of file TDecompBase.cxx.

DefHouseHolder()

Bool_t DefHouseHolder	(	const TVectorD &	vc,
		Int_t	lp,
		Int_t	l,
		Double_t &	up,
		Double_t &	b,
		Double_t	tol = 0.0
	)

Define a Householder-transformation through the parameters up and b .

Definition at line 354 of file TDecompBase.cxx.