qpmad::GivensRotation< t_Scalar > Class Template Reference

Detailed Description

template<typename t_Scalar>
class qpmad::GivensRotation< t_Scalar >

Represents Givens rotation.

[ cos, sin ] [ ] [ -sin, cos ]

for a given vector (a, b) is defined with

[ cos, sin ] [ a ] [ d ] [ ] * [ ] = [ ] [ -sin, cos ] [ b ] [ 0 ]

sin^2 + cos^2 = 1

Special cases: COPY b == 0: cos = 1, sin = 0 SWAP (b != 0) && (a == 0): cos = 0, sin = 1

Definition at line 41 of file givens.h.

#include <givens.h>

Public Types
enum	Type { NONTRIVIAL = 0 , COPY = 1 , SWAP = 2 }

Public Member Functions
Type	computeAndApply (t_Scalar &a, t_Scalar &b, const t_Scalar eps)
void	apply (t_Scalar &a, t_Scalar &b) const
template<class t_MatrixType >
void	applyColumnWise (t_MatrixType &M, MatrixIndex start, MatrixIndex end, MatrixIndex column_1, MatrixIndex column_2) const
template<class t_MatrixType >
void	applyRowWise (t_MatrixType &M, MatrixIndex start, MatrixIndex end, MatrixIndex row_1, MatrixIndex row_2) const

Private Member Functions
void	swap (t_Scalar &a, t_Scalar &b) const
void	applyNonTrivial (t_Scalar &a, t_Scalar &b) const

Private Attributes
Type	type
t_Scalar	cos
t_Scalar	sin

Member Enumeration Documentation

Type

template<typename t_Scalar >

enum qpmad::GivensRotation::Type

Enumerator
NONTRIVIAL
COPY
SWAP

Definition at line 44 of file givens.h.

Member Function Documentation

apply()

template<typename t_Scalar >

void qpmad::GivensRotation< t_Scalar >::apply ( t_Scalar &  a, t_Scalar &  b  ) const

inline

Definition at line 103 of file givens.h.

applyColumnWise()

template<typename t_Scalar >

template<class t_MatrixType >

void qpmad::GivensRotation< t_Scalar >::applyColumnWise ( t_MatrixType &  M, MatrixIndex  start, MatrixIndex  end, MatrixIndex  column_1, MatrixIndex  column_2  ) const

inline

Definition at line 119 of file givens.h.

applyNonTrivial()

template<typename t_Scalar >

void qpmad::GivensRotation< t_Scalar >::applyNonTrivial ( t_Scalar &  a, t_Scalar &  b  ) const

inlineprivate

Definition at line 172 of file givens.h.

applyRowWise()

template<typename t_Scalar >

template<class t_MatrixType >

void qpmad::GivensRotation< t_Scalar >::applyRowWise ( t_MatrixType &  M, MatrixIndex  start, MatrixIndex  end, MatrixIndex  row_1, MatrixIndex  row_2  ) const

inline

Definition at line 143 of file givens.h.

computeAndApply()

template<typename t_Scalar >

Type qpmad::GivensRotation< t_Scalar >::computeAndApply ( t_Scalar &  a, t_Scalar &  b, const t_Scalar  eps  )

inline

Definition at line 53 of file givens.h.

swap()

template<typename t_Scalar >

void qpmad::GivensRotation< t_Scalar >::swap ( t_Scalar &  a, t_Scalar &  b  ) const

inlineprivate

Definition at line 167 of file givens.h.

Member Data Documentation

cos

template<typename t_Scalar >

t_Scalar qpmad::GivensRotation< t_Scalar >::cos

private

Definition at line 162 of file givens.h.

sin

template<typename t_Scalar >

t_Scalar qpmad::GivensRotation< t_Scalar >::sin

private

Definition at line 163 of file givens.h.

type

template<typename t_Scalar >

Type qpmad::GivensRotation< t_Scalar >::type

private

Definition at line 161 of file givens.h.

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

• /mnt/data/_me/git/asherikov/qpmad/include/qpmad/givens.h