Chroma::Givens Class Reference

#include <syssolver_linop_fgmres_dr.h>

Public Member Functions
	Givens (int col, const multi2d< DComplex > &H)
void	operator() (int col, multi2d< DComplex > &H)
void	operator() (multi1d< DComplex > &v)

Private Attributes
int	col_
DComplex	s_
DComplex	c_
DComplex	r_

Detailed Description

Definition at line 31 of file syssolver_linop_fgmres_dr.h.

Constructor & Destructor Documentation

Givens()

Chroma::Givens::Givens ( int  col, const multi2d< DComplex > &  H  )

inline

Given a marix H, construct the rotator so that H(row,col) = r and H(row+1,col) = 0

Parameters

col	the column Input
H	the Matrix Input

Definition at line 84 of file syssolver_linop_fgmres_dr.h.

References c_, col_, r_, s_, and t.

Member Function Documentation

operator()() [1/2]

void Chroma::Givens::operator() ( int  col, multi2d< DComplex > &  H  )

inline

Apply the rotation to column col of the matrix H. The routine affects col and col+1.

Parameters

col	the columm
H	the matrix

Definition at line 119 of file syssolver_linop_fgmres_dr.h.

References Chroma::a, Chroma::b, c_, col_, r_, and s_.

operator()() [2/2]

void Chroma::Givens::operator() ( multi1d< DComplex > &  v )

inline

Apply rotation to Column Vector v

Definition at line 135 of file syssolver_linop_fgmres_dr.h.

References Chroma::a, Chroma::b, c_, col_, and s_.

Member Data Documentation

c_

DComplex Chroma::Givens::c_

private

Definition at line 146 of file syssolver_linop_fgmres_dr.h.

Referenced by Givens(), and operator()().

col_

int Chroma::Givens::col_

private

Definition at line 144 of file syssolver_linop_fgmres_dr.h.

Referenced by Givens(), and operator()().

r_

DComplex Chroma::Givens::r_

private

Definition at line 147 of file syssolver_linop_fgmres_dr.h.

Referenced by Givens(), and operator()().

s_

DComplex Chroma::Givens::s_

private

Definition at line 145 of file syssolver_linop_fgmres_dr.h.

Referenced by Givens(), and operator()().

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

• syssolver_linop_fgmres_dr.h