Isis::Matrix Class Reference
[Math]

Matrix class. More...

#include <Matrix.h>

List of all members.

Public Member Functions
	Matrix (const int n, const int m, const double value=0.0)
	Constructs an n x m Matrix containing the specified default value.
	Matrix (TNT::Array2D< double > matrix)
	Constructs a Matrix from the specified TNT Array2D.
	~Matrix ()
	Destroys the Matrix object.
int	Rows ()
int	Columns ()
double	Determinant ()
	Compute the determinant of the matrix.
double	Trace ()
	Compute the determinant of the matrix.
std::vector< double >	Eigenvalues ()
	Compute the eigenvalues of the matrix.
Matrix	Add (Matrix &matrix)
	Add the two matrices.
Matrix	Subtract (Matrix &matrix)
	Subtract the input matrix from this matrix.
Matrix	Multiply (Matrix &matrix)
	Multiply the two matrices.
Matrix	Multiply (double scalar)
	Multiply the matrix by a scalar value.
Matrix	MultiplyElementWise (Matrix &matrix)
	Multiply the two matrices element-wise (ie compute C such that C[i][j] = A[i][j]*B[i][j]).
Matrix	Transpose ()
	Compute the transpose of the matrix.
Matrix	Inverse ()
	Compute the inverse of the matrix.
Matrix	Eigenvectors ()
	Compute the eigenvectors of the matrix and return them as columns of a matrix in ascending order.
double *	operator[] (int index)
Matrix	operator+ (Matrix &matrix)
Matrix	operator- (Matrix &matrix)
Matrix	operator* (Matrix &matrix)
Matrix	operator* (double scalar)
Static Public Member Functions
static Matrix	Identity (const int n)
	Create an n x n identity matrix.

---

Detailed Description

Matrix class.

A Matrix

This class stores a matrix and compute matrix calculations such as addition, subtraction,multiplication, transposes, inverses, and eigenvalues.

Author:

2006-05-19 Jacob Danton

---

Constructor & Destructor Documentation

Isis::Matrix::Matrix	(	const int	n,
		const int	m,
		const double	value = 0.0
	)

Constructs an n x m Matrix containing the specified default value.

References _FILEINFO_, and Isis::IException::Programmer.

Referenced by Add(), Eigenvectors(), Inverse(), Multiply(), MultiplyElementWise(), Subtract(), and Transpose().

Isis::Matrix::Matrix

(

TNT::Array2D< double >

matrix

)

Constructs a Matrix from the specified TNT Array2D.

Isis::Matrix::~Matrix

(

)

Destroys the Matrix object.

---

Member Function Documentation

Matrix Isis::Matrix::Add

(

Matrix &

matrix

)

Add the two matrices.

References _FILEINFO_, Columns(), Matrix(), Isis::IException::Programmer, and Rows().

Referenced by operator+().

int Isis::Matrix::Columns

(

)

[inline]

Referenced by Add(), Determinant(), Eigenvalues(), Eigenvectors(), Inverse(), Multiply(), MultiplyElementWise(), Isis::operator<<(), Subtract(), and Trace().

double Isis::Matrix::Determinant

(

)

Compute the determinant of the matrix.

References _FILEINFO_, Columns(), Isis::IException::Programmer, and Rows().

std::vector< double > Isis::Matrix::Eigenvalues

(

)

Compute the eigenvalues of the matrix.

References _FILEINFO_, Columns(), Isis::E(), Isis::IException::Programmer, and Rows().

Matrix Isis::Matrix::Eigenvectors

(

)

Compute the eigenvectors of the matrix and return them as columns of a matrix in ascending order.

References _FILEINFO_, Columns(), Isis::E(), Matrix(), Isis::IException::Programmer, and Rows().

Matrix Isis::Matrix::Identity

(

const int

n

)

[static]

Create an n x n identity matrix.

References _FILEINFO_, Isis::IException::Programmer, and Rows().

Matrix Isis::Matrix::Inverse

(

)

Compute the inverse of the matrix.

References _FILEINFO_, Columns(), Matrix(), Isis::IException::Programmer, and Rows().

Matrix Isis::Matrix::Multiply

(

double

scalar

)

Multiply the matrix by a scalar value.

References Columns(), and Rows().

Matrix Isis::Matrix::Multiply

(

Matrix &

matrix

)

Multiply the two matrices.

References _FILEINFO_, Columns(), Matrix(), Isis::IException::Programmer, and Rows().

Referenced by operator*().

Matrix Isis::Matrix::MultiplyElementWise

(

Matrix &

matrix

)

Multiply the two matrices element-wise (ie compute C such that C[i][j] = A[i][j]*B[i][j]).

References _FILEINFO_, Columns(), Matrix(), Isis::IException::Programmer, and Rows().

Matrix Isis::Matrix::operator*

(

double

scalar

)

[inline]

References Multiply().

Matrix Isis::Matrix::operator*

(

Matrix &

matrix

)

[inline]

References Multiply().

Matrix Isis::Matrix::operator+

(

Matrix &

matrix

)

[inline]

References Add().

Matrix Isis::Matrix::operator-

(

Matrix &

matrix

)

[inline]

References Subtract().

double* Isis::Matrix::operator[]

(

int

index

)

[inline]

int Isis::Matrix::Rows

(

)

[inline]

Referenced by Add(), Determinant(), Eigenvalues(), Eigenvectors(), Identity(), Inverse(), Multiply(), MultiplyElementWise(), Isis::operator<<(), Subtract(), and Trace().

Matrix Isis::Matrix::Subtract

(

Matrix &

matrix

)

Subtract the input matrix from this matrix.

References _FILEINFO_, Columns(), Matrix(), Isis::IException::Programmer, and Rows().

Referenced by operator-().

double Isis::Matrix::Trace

(

)

Compute the determinant of the matrix.

References _FILEINFO_, Columns(), Isis::IException::Programmer, and Rows().

Matrix Isis::Matrix::Transpose

(

)

Compute the transpose of the matrix.

References Matrix().

---

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

• src/base/objs/Matrix/Matrix.h
• src/base/objs/Matrix/Matrix.cpp