VSymMatrix Class Reference

Simple symmetric Matrix based on std::vector<double> More...

#include <VMatrix.h>

List of all members.

Public Member Functions
	VSymMatrix (const unsigned int nRows=0)
virtual	~VSymMatrix ()
void	resize (const unsigned int nRows)
	Resize symmetric matrix.
unsigned int	invert ()
	Matrix inversion.
double &	operator() (unsigned int i, unsigned int j)
	access element (i,j) assuming i>=j
double	operator() (unsigned int i, unsigned int j) const
	access element (i,j) assuming i>=j
unsigned int	getNumRows () const
	Get number of rows (= number of colums).
void	print () const
	Print matrix.
VSymMatrix	operator- (const VMatrix &aMatrix) const
	Subtraction SymMatrix-(sym)Matrix.
VVector	operator* (const VVector &aVector) const
	Multiplication SymMatrix*Vector.
VMatrix	operator* (const VMatrix &aMatrix) const
	Multiplication SymMatrix*Matrix.

Private Attributes
unsigned int	numRows
	Number of rows.
std::vector< double >	theVec
	Data (symmetric storage)

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Detailed Description

Simple symmetric Matrix based on std::vector<double>

Definition at line 59 of file VMatrix.h.

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Constructor & Destructor Documentation

VSymMatrix::VSymMatrix

(

const unsigned int

nRows = 0

)

Definition at line 124 of file VMatrix.cpp.

VSymMatrix::~VSymMatrix ( )

virtual

Definition at line 128 of file VMatrix.cpp.

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Member Function Documentation

unsigned int VSymMatrix::getNumRows

(

)

const

Get number of rows (= number of colums).

Returns:

Number of rows.

Definition at line 144 of file VMatrix.cpp.

References numRows.

unsigned int VSymMatrix::invert

(

)

Matrix inversion.

Invert symmetric N-by-N matrix V in symmetric storage mode V(1) = V11, V(2) = V12, V(3) = V22, V(4) = V13, . . . replaced by inverse matrix

Method of solution is by elimination selecting the pivot on the diagonal each stage. The rank of the matrix is returned in NRANK. For NRANK ne N, all remaining rows and cols of the resulting matrix V are set to zero.

Exceptions:

1	: matrix is singular.

Returns:

Rank of matrix.

Definition at line 296 of file VMatrix.cpp.

References numRows, and theVec.

Referenced by BorderedBandMatrix::solveAndInvertBorderedBand().

double & VSymMatrix::operator() ( unsigned int  i, unsigned int  j  )

inline

access element (i,j) assuming i>=j

Definition at line 98 of file VMatrix.h.

References theVec.

double VSymMatrix::operator() ( unsigned int  i, unsigned int  j  ) const

inline

access element (i,j) assuming i>=j

Definition at line 103 of file VMatrix.h.

References theVec.

VVector VSymMatrix::operator*

(

const VVector &

aVector

)

const

Multiplication SymMatrix*Vector.

Definition at line 176 of file VMatrix.cpp.

References numRows, and theVec.

VMatrix VSymMatrix::operator*

(

const VMatrix &

aMatrix

)

const

Multiplication SymMatrix*Matrix.

Definition at line 189 of file VMatrix.cpp.

References VMatrix::getNumCols(), numRows, and theVec.

VSymMatrix VSymMatrix::operator-

(

const VMatrix &

aMatrix

)

const

Subtraction SymMatrix-(sym)Matrix.

Definition at line 165 of file VMatrix.cpp.

References numRows, and theVec.

void VSymMatrix::print

(

)

const

Print matrix.

Definition at line 149 of file VMatrix.cpp.

References numRows, and theVec.

Referenced by BorderedBandMatrix::printMatrix().

void VSymMatrix::resize

(

const unsigned int

nRows

)

Resize symmetric matrix.

Parameters:

[in]

nRows

Number of rows.

Definition at line 135 of file VMatrix.cpp.

References numRows, and theVec.

Referenced by BorderedBandMatrix::resize().

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Member Data Documentation

unsigned int VSymMatrix::numRows

private

Number of rows.

Definition at line 73 of file VMatrix.h.

Referenced by getNumRows(), invert(), operator*(), operator-(), print(), and resize().

std::vector<double> VSymMatrix::theVec

private

Data (symmetric storage)

Definition at line 74 of file VMatrix.h.

Referenced by invert(), operator()(), operator*(), operator-(), print(), and resize().

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

• src/VMatrix.h
• src/VMatrix.cpp