de.jtem.function.real

Class RealFunctionOnIndexCrossIndex

java.lang.Object

de.jtem.function.real.RealFunctionOnIndexCrossIndex

All Implemented Interfaces:

Domain.OnIndexCrossIndex, RealFunction.OnIndexCrossIndex

public class RealFunctionOnIndexCrossIndex
extends Object
implements RealFunction.OnIndexCrossIndex

An implementation of the interface RealFunction.OnIndexCrossIndex. Function values are stored internally, so using this class to make a copy of a RealFunction.OnIndexCrossIndex c (by the corresponding constructor or the assign method) will make a snapshot of the current state of c. No reference to c itself is retained.

Constructor Summary

Constructors

Constructor and Description
RealFunctionOnIndexCrossIndex() Creates a matrix with 1 row and 1 column.
RealFunctionOnIndexCrossIndex(double[][] c) Interprets the array c as a function of two indices and creates a copy of it.
RealFunctionOnIndexCrossIndex(int m, int n) Creates a matrix with m rows and n columns and all values zero.
RealFunctionOnIndexCrossIndex(RealFunction.OnIndexCrossIndex c) Creates a copy of the function c

Method Summary

Modifier and Type	Method and Description
void	assign(double[][] c) Interpret the array c as a function of two indices and become a copy of it.
void	assign(RealFunction.OnIndexCrossIndex c) Become a copy of the function c
void	assignZero() Keep the number of rows and columns but set all values to zero.
void	assignZero(int m, int n) Become a matrix with m rows and n columns and all values zero.
int	getNumColumns() Returns the number of columns (the range of the second variable of this function).
int	getNumRows() Returns the number of rows (the range of the first variable of this function).
void	setSize(int m, int n) Do nothing if m and nare equal to the current numbers of rows and columns, otherwise become a matrix with m rows and n columns and all values zero.
void	setValueAt(int i, int j, double z) Sets the value at index i,j to z.
double	valueAt(int i, int j) returns the value of this function at i,j.

Methods inherited from class java.lang.Object

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

Constructor Detail

RealFunctionOnIndexCrossIndex

public RealFunctionOnIndexCrossIndex()

Creates a matrix with 1 row and 1 column.

RealFunctionOnIndexCrossIndex

public RealFunctionOnIndexCrossIndex(double[][] c)

Interprets the array c as a function of two indices and creates a copy of it.

Parameters:

c - must be a rectangular array and c[0][0] must be a non-null

RealFunctionOnIndexCrossIndex

public RealFunctionOnIndexCrossIndex(int m,
                                     int n)

Creates a matrix with m rows and n columns and all values zero.

Parameters:

m - must be at least one.

n - must be at least one.

RealFunctionOnIndexCrossIndex

public RealFunctionOnIndexCrossIndex(RealFunction.OnIndexCrossIndex c)

Creates a copy of the function c

Method Detail

assign

public void assign(double[][] c)

Interpret the array c as a function of two indices and become a copy of it.

assign

public void assign(RealFunction.OnIndexCrossIndex c)

Become a copy of the function c

assignZero

public void assignZero()

Keep the number of rows and columns but set all values to zero.

assignZero

public void assignZero(int m,
                       int n)

Become a matrix with m rows and n columns and all values zero.

Parameters:

m - must be at least one.

n - must be at least one.

getNumColumns

public int getNumColumns()

Returns the number of columns (the range of the second variable of this function).

getNumRows

public int getNumRows()

Returns the number of rows (the range of the first variable of this function).

setSize

public void setSize(int m,
                    int n)

Do nothing if m and nare equal to the current numbers of rows and columns, otherwise become a matrix with m rows and n columns and all values zero.

Parameters:

m - must be at least one.

n - must be at least one.

setValueAt

public void setValueAt(int i,
                       int j,
                       double z)

Sets the value at index i,j to z.

valueAt

public double valueAt(int i,
                      int j)

returns the value of this function at i,j.