Matrix3x3 Class Reference

3x3 matrix class meant for compute-intensive use

#include <Mesh/Geometry/matrix3x3.h>

Public Member Functions
	Matrix3x3 ()
	Matrix3x3 (const Matrix3x3 &m)
	Matrix3x3 (double d00, double d01, double d02, double d10, double d11, double d12, double d20, double d21, double d22)
double	determinant () const
double &	operator() (int row, int column)
double	operator() (int row, int column) const
Matrix3x3 &	operator*= (double f)
Matrix3x3 &	operator+= (const Matrix3x3 &m)
Matrix3x3 &	operator-= (const Matrix3x3 &m)
Matrix3x3 &	operator/= (double f)
Matrix3x3 &	operator= (const Matrix3x3 &m)
double	trace () const
Matrix3x3	transpose () const

Static Public Member Functions
static Matrix3x3	identity ()

Related Functions
(Note that these are not member functions.)
double	innerProduct (const Matrix3x3 &mA, const Matrix3x3 &mB)
bool	operator!= (const Matrix3x3 &mA, const Matrix3x3 &mB)
Matrix3x3	operator+ (const Matrix3x3 &mA, const Matrix3x3 &mB)
Matrix3x3	operator- (const Matrix3x3 &m)
Matrix3x3	operator- (const Matrix3x3 &mA, const Matrix3x3 &mB)
bool	operator== (const Matrix3x3 &mA, const Matrix3x3 &mB)
Matrix3x3	tensorProduct (const Matrix3x3 &mA, const Matrix3x3 &mB)

Constructor & Destructor Documentation

Matrix3x3() [1/3]

Matrix3x3 ( )

inline

The default constructor returns a matrix with all its entries set to zero.

Matrix3x3() [2/3]

Matrix3x3 ( double  d00, double  d01, double  d02, double  d10, double  d11, double  d12, double  d20, double  d21, double  d22  )

inline

Set each entry of the matrix individually.

Matrix3x3() [3/3]

Matrix3x3 ( const Matrix3x3 &  m )

inline

Parameters

m	The matrix to construct a copy of.

Member Function Documentation

determinant()

double determinant ( ) const

inline

Returns

The determinant of the matrix.

identity()

static Matrix3x3 identity ( )

inlinestatic

Returns

The identity matrix (diagonals set to 1, everything else is 0).

operator()() [1/2]

double & operator() ( int  row, int  column  )

inline

Parameters

row	The row of the matrix.
column	The column of the matrix.

Returns

The element at the specified row and column.

operator()() [2/2]

double operator() ( int  row, int  column  ) const

inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

operator*=()

Matrix3x3 & operator*= ( double  f )

inline

In-place multiplication by a scalar.

operator+=()

Matrix3x3 & operator+= ( const Matrix3x3 &  m )

inline

In-place addition.

operator-=()

Matrix3x3 & operator-= ( const Matrix3x3 &  m )

inline

In-place subtraction.

operator/=()

Matrix3x3 & operator/= ( double  f )

inline

In-place division by a scalar.

operator=()

Matrix3x3 & operator= ( const Matrix3x3 &  m )

inline

Parameters

m	The matrix to assign to this one.

trace()

double trace ( ) const

inline

Returns

The trace of the matrix.

transpose()

Matrix3x3 transpose ( ) const

inline

Returns

The transpose of the matrix.

Friends And Related Function Documentation

innerProduct()

double innerProduct ( const Matrix3x3 &  mA, const Matrix3x3 &  mB  )

related

Returns

The inner product of the two matrices.

operator!=()

bool operator!= ( const Matrix3x3 &  mA, const Matrix3x3 &  mB  )

related

Non-equivalence.

operator+()

Matrix3x3 operator+ ( const Matrix3x3 &  mA, const Matrix3x3 &  mB  )

related

Returns

The element-wise addition of the two matrices ( mA + mB ).

operator-() [1/2]

Matrix3x3 operator- ( const Matrix3x3 &  m )

related

Returns

The negative of the matrix m (ie every element of the returned matrix is the negative of the corresponding element of m ).

operator-() [2/2]

Matrix3x3 operator- ( const Matrix3x3 &  mA, const Matrix3x3 &  mB  )

related

Returns

The element-wise subtraction of the two matrices ( mA - mB ).

operator==()

bool operator== ( const Matrix3x3 &  mA, const Matrix3x3 &  mB  )

related

Equivalence.

tensorProduct()

Matrix3x3 tensorProduct ( const Matrix3x3 &  mA, const Matrix3x3 &  mB  )

related

Returns

The tensor product of the two matrices.