gml_ElMat2.h File Reference

Detailed Description

Basic operations on row-major 2x2 matrices and 2x1 vectors.

#include <math.h>
#include "gml/base/gml_Errors.h"


Functions
template<class T>
static gml_TError	gml_EM2_Invert (T source, T dest)
	Invert the source matrix in dest. source and dest may be indentical. Return an error if source is not invertible.
template<class T>
static T	gml_EM2_Det (T *source)
	Return the determinant of source.
template<class T>
static void	gml_EM2_AddMat (T a, T b, T *dest)
	Add the two matrix a and b and put the result in dest dest may be a or b.
template<class T>
static void	gml_EM2_AddVect (T a, T b, T *dest)
	Add the two vectors a and b and put the result in dest dest may be a or b.
template<class T>
static void	gml_EM2_MultVect (T a, T b, T *dest)
	Multiply matrix a anv vector b and put the result in dest dest may be a or b.
template<class T>
static gml_TError	gml_EM2_EigenStuff (T a, T e, T *v)
	Return in e the eigenvalues of matrix a. Largest value goes in first position. The corresponding eigenvectors are returned in v. v contains 2 values: v[0] is the 2nd component of eigenvector corresponding to eigenvalue e[0] (its first component is choosen as 1) v[1] corresponds to e[1].
template<class T>
static gml_TError	gml_EM2_EigenVal (T a, T e)
	Return in e the eigenvalues of matrix a. Largest value goes in first position.
template<class T>
static gml_TError	gml_EM2_EigenVect (T a, T v)
	Return in v the eigenvectors of matrix a. v contains 2 values: v[0] is the 2nd component of eigenvector corresponding to the largest eigenvalue (its first component is choosen as 1) v[1] corresponds to the smallest eigenvalue.

gml_ElMat2.h File Reference

Detailed Description

Functions