org.lcsim.matrix
Class Matrix

java.lang.Object
  org.lcsim.matrix.Matrix

public class Matrix

extends java.lang.Object

Field Summary

protected double[][]	_a
protected int	_col
protected Eigensystem	_eigensystem
protected Matrix	_eigenvalues
protected int	_row

Constructor Summary

Matrix()

Matrix(int i, int j)

Matrix(Matrix matrix)

Method Summary

Matrix	add(Matrix matrix)
double	at(int i, int j)
int	cols()
Matrix	column(int col)
protected void	createData()
Eigensystem	eigensystem()
Matrix	eigenvalues()
boolean	equals(Matrix matrix)
boolean	equals(Matrix matrix, double d)
void	fill(double d)
Eigensystem	getEigensystem()
Matrix	getEigenvalues()
protected void	householder(Matrix matrix, Matrix matrix1, Matrix matrix2, boolean flag)
Matrix	inverse()
boolean	isLowerDiagonal()
boolean	isSquare()
boolean	isSymmetric()
boolean	isUpperDiagonal()
void	makeIdentity()
void	plusequal(int i, int j, double d)
void	plusEqual(Matrix b)
void	print()
void	print(int i)
protected double	pythagoras(double d, double d1)
protected void	QL(Matrix matrix, Matrix matrix1, Matrix matrix2, boolean flag)
void	read(java.lang.String s)
Matrix	row(int row)
int	rows()
void	set(int i, int j, double d)
protected double	SIGN(double d, double d1)
protected double	square(double d)
Matrix	submatrix(int i, int j, int k, int l)
Matrix	subtract(Matrix matrix)
Matrix	times(double d)
Matrix	times(Matrix matrix)
java.lang.String	toString()
Matrix	transposed()
Matrix	upperDiagonal()
void	write(java.lang.String s)
void	write(java.lang.String s, java.lang.String s1)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

_row

protected int _row

_col

protected int _col

_a

protected double[][] _a

_eigenvalues

protected Matrix _eigenvalues

_eigensystem

protected Eigensystem _eigensystem

Constructor Detail

Matrix

public Matrix()

Matrix

public Matrix(int i,
              int j)

Matrix

public Matrix(Matrix matrix)

Method Detail

QL

protected void QL(Matrix matrix,
                  Matrix matrix1,
                  Matrix matrix2,
                  boolean flag)

SIGN

protected double SIGN(double d,
                      double d1)

add

public Matrix add(Matrix matrix)

at

public double at(int i,
                 int j)

cols

public int cols()

createData

protected void createData()

eigensystem

public Eigensystem eigensystem()

eigenvalues

public Matrix eigenvalues()

equals

public boolean equals(Matrix matrix)

equals

public boolean equals(Matrix matrix,
                      double d)

fill

public void fill(double d)

getEigensystem

public Eigensystem getEigensystem()

getEigenvalues

public Matrix getEigenvalues()

householder

protected void householder(Matrix matrix,
                           Matrix matrix1,
                           Matrix matrix2,
                           boolean flag)

inverse

public Matrix inverse()

isLowerDiagonal

public boolean isLowerDiagonal()

isSquare

public boolean isSquare()

isSymmetric

public boolean isSymmetric()

isUpperDiagonal

public boolean isUpperDiagonal()

makeIdentity

public void makeIdentity()

times

public Matrix times(double d)

times

public Matrix times(Matrix matrix)

print

public void print()

print

public void print(int i)

pythagoras

protected double pythagoras(double d,
                            double d1)

read

public void read(java.lang.String s)

rows

public int rows()

set

public void set(int i,
                int j,
                double d)

plusequal

public void plusequal(int i,
                      int j,
                      double d)

plusEqual

public void plusEqual(Matrix b)

square

protected double square(double d)

submatrix

public Matrix submatrix(int i,
                        int j,
                        int k,
                        int l)

subtract

public Matrix subtract(Matrix matrix)

transposed

public Matrix transposed()

upperDiagonal

public Matrix upperDiagonal()

write

public void write(java.lang.String s)

write

public void write(java.lang.String s,
                  java.lang.String s1)

toString

public java.lang.String toString()

column

public Matrix column(int col)

row

public Matrix row(int row)