matrixFunctionInterface.cpp File Reference

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Detailed Description

Miscellaneous matrix functions.

Author:

Author

jayhawk_hokie

Version:

Revision

1.3

Date:

Date

2007/07/24 08:40:44

Definition in file matrixFunctionInterface.cpp.

#include "matrixFunctionInterface.h"

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Functions
void	eigenValues (Matrix _Matrix, Matrix &_EigenVectors, Vector &_RealEigenValues, Vector &_ImaginaryEigenValues)
	Takes in a square matrix and returns, by reference, the Real and Imaginary Eigenvalues and the Eigenvectors for that matrix This function does not normalize the Eigenvectors.
bool	greatestEigenValue (Matrix _Matrix, double &_EigenValue, Vector &_EigenVector, int _MaxIterations)
double	norm2 (Matrix _Matrix)
	Takes in a square matrix and returns the norm of the matrix, which is the square root of the largest eigenvalue of A(transpose)*A.
REAL **	convertMatrix (Matrix _Matrix)
	Takes in a Matrix and returns a REAL ** with the same values.
REAL *	convertVector (Vector _Vector)
	Takes in a Vector and returns a REAL * with the same values.
Matrix	convertMatrix (REAL **_Matrix, int n)
	Takes in a REAL ** and returns a Matrix with the same values.
Vector	convertVector (REAL *_Vector, int n)
	Takes in a REAL * and returns a Vector with the same values.
Matrix	matrixInv3x3 (Matrix _A)
	Determines the inverse of a 3x3 matrix.
double	matrixDet (Matrix _A)
	Determines the determinate of a matrix up to 3x3.
double	matrixDet2x2 (Matrix _A)
	Determines the determinate of a 2x2 matrix.

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Function Documentation

Matrix convertMatrix (  REAL **  _Matrix, int  n )

Takes in a REAL ** and returns a Matrix with the same values. Parameters: finalMatrix  the Matrix in REAL ** Returns: _Matrix is a Matrix Definition at line 258 of file matrixFunctionInterface.cpp. References O_SESSAME::Matrix. Referenced by eigenValues().

REAL** convertMatrix (  Matrix  _Matrix  )

Takes in a Matrix and returns a REAL ** with the same values. Parameters: _Matrix  is a Matrix Returns: finalMatrix the Matrix in REAL ** Definition at line 215 of file matrixFunctionInterface.cpp.

Vector convertVector (  REAL *  _Vector, int  n )

Takes in a REAL * and returns a Vector with the same values. Parameters: finalMatrix  the Matrix in REAL * Returns: _Matrix is a Vector Definition at line 276 of file matrixFunctionInterface.cpp. References O_SESSAME::Vector. Referenced by eigenValues().

REAL* convertVector (  Vector  _Vector  )

Takes in a Vector and returns a REAL * with the same values. Parameters: _Matrix  is a Vector Returns: finalMatrix the Matrix in REAL * Definition at line 238 of file matrixFunctionInterface.cpp.

void eigenValues (  Matrix  _Matrix, Matrix &  _EigenVectors, Vector &  _RealEigenValues, Vector &  _ImaginaryEigenValues )

Takes in a square matrix and returns, by reference, the Real and Imaginary Eigenvalues and the Eigenvectors for that matrix This function does not normalize the Eigenvectors. Parameters: _Matrix  is a matrix passed to find the eigenvalues and eigenvectors Returns: _EigenVectors is a matrix of the eigen vectors _RealEigenValues is a vector of the real eigenvalues of matrix _Matrix _ImaginaryEigenValues is a vector of the imaginary eigenvalues of matrix _Matrix Definition at line 23 of file matrixFunctionInterface.cpp. References convertMatrix(), convertVector(), eigen(), O_SESSAME::Matrix, MATRIX, REAL, O_SESSAME::Vector, VEKTOR, vmalloc(), vminit(), and VVEKTOR. Referenced by norm2().

bool greatestEigenValue (  Matrix  _Matrix, double &  _EigenValue, Vector &  _EigenVector, int  _MaxIterations )

Definition at line 73 of file matrixFunctionInterface.cpp. References O_SESSAME::Matrix, and O_SESSAME::Vector. Referenced by norm2().

double matrixDet (  Matrix  _A  )

Determines the determinate of a matrix up to 3x3. Parameters: _A  matrix is a nxn matrix where n<=3 Returns: _det is a double Definition at line 346 of file matrixFunctionInterface.cpp. References _, O_SESSAME::Matrix, and matrixDet2x2(). Referenced by matrixInv3x3().

double matrixDet2x2 (  Matrix  _A  )

Determines the determinate of a 2x2 matrix. Parameters: _A  matrix is a 2x2 matrix Returns: _det is a double Definition at line 377 of file matrixFunctionInterface.cpp. References O_SESSAME::Matrix. Referenced by matrixDet().

Matrix matrixInv3x3 (  Matrix  _A  )

Determines the inverse of a 3x3 matrix. Parameters: _A  matrix is a 3x3 matrix to be inverted Returns: _Ainv is a 3x3 Matrix Definition at line 291 of file matrixFunctionInterface.cpp. References _, O_SESSAME::Matrix, and matrixDet(). Referenced by slidingModeControlMRPMW::Initialize(), slidingModeControlMRPMW::Run(), and QuaternionEKFObserver::SingleMeasurement().

double norm2 (  Matrix  _Matrix  )

Takes in a square matrix and returns the norm of the matrix, which is the square root of the largest eigenvalue of A(transpose)*A. Parameters: _Matrix  is a matrix passed to find the norm Returns: norm2 is the norm of the matrix _Matrix Examples: testEnvironment.cpp. Definition at line 169 of file matrixFunctionInterface.cpp. Referenced by norm2().

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