org.catacomb.numeric.math

Class Matrix

java.lang.Object

org.catacomb.numeric.math.Matrix

All Implemented Interfaces:

java.lang.Cloneable

public final class Matrix
extends java.lang.Object
implements java.lang.Cloneable

Field Summary

Fields

Modifier and Type	Field and Description
double[][]	a
(package private) int	n
(package private) int	n1
(package private) int	n2
(package private) int[]	perm
(package private) int	sign
(package private) double[]	ws

Constructor Summary

Constructors

Constructor and Description
Matrix(double[][] a)
Matrix(int nnn)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(double d)
void	add(Matrix m)
static Matrix[]	average(Matrix[] ma, Matrix[] mb, double f)
static Matrix	average(Matrix ma, Matrix mb, double f)
Matrix	copy()
double[][]	copyMat()
Matrix	crudeExpOf(double t)
double	det()
int	dim()
double[]	ev1vec(int np)
Matrix	expOf(double t)
double[]	flatten()
double[]	getColumn(int ic)
void	identise()
Matrix	identity()
Matrix	inverse()
void	invert()
void	LU()
double[]	lubksb(double[] b)
static double[]	LUSolve(double[][] m, double[] R)
double[]	lvprod(double[] v)
double	maxAbsElt()
void	mpyBy(double d)
void	mpyBy(Matrix m)
void	multiplyInto(double[] v)
Matrix	power(int p)
void	print()
Matrix	prod(Matrix m)
Matrix	random()
int	randomIndexFromColumn(int c)
int	randomIndexFromColumn(int c, double rin)
int	randomIndexFromOffsetColumn(int c, int off)
void	randomise()
void	rect2rvprod(double[] v, double[] r1, double[] r2)
void	round()
void	round(double d)
double[]	rvprod(double[] v)
double	rvprodOneElt(double[] v, int elt)
void	setDims(int d1, int d2)
void	Sp(java.lang.String s)
Matrix	sum(Matrix m)
Matrix	transpose()
void	zero()

Methods inherited from class java.lang.Object

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

Field Detail

a

public double[][] a

ws

double[] ws

n

int n

perm

int[] perm

sign

int sign

n1

int n1

n2

int n2

Constructor Detail

Matrix

public Matrix(int nnn)

Matrix

public Matrix(double[][] a)

Method Detail

flatten

public double[] flatten()

Sp

public void Sp(java.lang.String s)

dim

public final int dim()

copy

public Matrix copy()

setDims

public void setDims(int d1,
           int d2)

identise

public void identise()

randomise

public void randomise()

zero

public void zero()

identity

public Matrix identity()

random

public Matrix random()

add

public void add(double d)

average

public static Matrix[] average(Matrix[] ma,
               Matrix[] mb,
               double f)

average

public static Matrix average(Matrix ma,
             Matrix mb,
             double f)

add

public void add(Matrix m)

sum

public Matrix sum(Matrix m)

mpyBy

public void mpyBy(double d)

mpyBy

public void mpyBy(Matrix m)

prod

public Matrix prod(Matrix m)

lvprod

public double[] lvprod(double[] v)

rvprod

public double[] rvprod(double[] v)

multiplyInto

public void multiplyInto(double[] v)

rect2rvprod

public void rect2rvprod(double[] v,
               double[] r1,
               double[] r2)

rvprodOneElt

public double rvprodOneElt(double[] v,
                  int elt)

transpose

public Matrix transpose()

det

public double det()

copyMat

public double[][] copyMat()

LU

public void LU()

inverse

public Matrix inverse()

LUSolve

public static double[] LUSolve(double[][] m,
               double[] R)

invert

public void invert()

lubksb

public double[] lubksb(double[] b)

round

public void round(double d)

round

public void round()

print

public void print()

maxAbsElt

public double maxAbsElt()

power

public Matrix power(int p)

crudeExpOf

public Matrix crudeExpOf(double t)

expOf

public Matrix expOf(double t)

randomIndexFromColumn

public int randomIndexFromColumn(int c)

randomIndexFromColumn

public final int randomIndexFromColumn(int c,
                        double rin)

getColumn

public final double[] getColumn(int ic)

randomIndexFromOffsetColumn

public int randomIndexFromOffsetColumn(int c,
                              int off)

ev1vec

public double[] ev1vec(int np)