Class LinearSystemGenerator

java.lang.Object

math.matrix.util.LinearSystemGenerator

public class LinearSystemGenerator
extends Object

Objects of this class have the ability to generate a system of linear equations, randomly.

Field Summary

Fields

Modifier and Type	Field	Description
private int	maximumPossibleNumberInSystem	The absolute value of the largest possible number that may be found in the system.
private int	size	The number of unknowns in the system.
private String	startingLetterOfUnknownName	The letter of alphabet that will start the name of the variables that will be used to build the linear system.

Constructor Summary

Constructors

Constructor	Description
LinearSystemGenerator(int size, int maximumPossibleNumberInSystem, String startingLetterOfUnknownName)

Method Summary

Modifier and Type	Method	Description
private String	buildSystem()	Builds the liinear system.
private double	generateCoefficient()
private ArrayList<String>	generateUnknowns()
int	getMaximumPossibleNumberInSystem()
int	getSize()
String	getStartingLetterOfUnknownName()
static void	main(String[] args)
void	setMaximumPossibleNumberInSystem(int maximumPossibleNumberInSystem)
void	setSize(int size)
void	setStartingLetterOfUnknownName(String startingLetterOfUnknownName)

Methods inherited from class Object

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

Field Details

maximumPossibleNumberInSystem

private int maximumPossibleNumberInSystem

The absolute value of the largest possible number that may be found in the system.

size

private int size

The number of unknowns in the system.

startingLetterOfUnknownName

private String startingLetterOfUnknownName

The letter of alphabet that will start the name of the variables that will be used to build the linear system. The system will geerate the variables as x1,x2...... where x is any uppercase or lowercase letter of the alphabet

Constructor Details

LinearSystemGenerator

public LinearSystemGenerator(int size,
 int maximumPossibleNumberInSystem,
 String startingLetterOfUnknownName)

Parameters:

size - The number of unknowns that the system will have.

maximumPossibleNumberInSystem - The absolute value of the largest possible number that may be found in the system.

startingLetterOfUnknownName - The letter of the alphabet that will start the name of the unknown.

Method Details

setStartingLetterOfUnknownName

public void setStartingLetterOfUnknownName(String startingLetterOfUnknownName)

getStartingLetterOfUnknownName

public String getStartingLetterOfUnknownName()

setSize

public void setSize(int size)

getSize

public int getSize()

setMaximumPossibleNumberInSystem

public void setMaximumPossibleNumberInSystem(int maximumPossibleNumberInSystem)

getMaximumPossibleNumberInSystem

public int getMaximumPossibleNumberInSystem()

generateUnknowns

private ArrayList<String> generateUnknowns()

Returns:

an ArrayList containing the unknowns

generateCoefficient

private double generateCoefficient()

Returns:

a double number randomly generated.

buildSystem

private String buildSystem()

Builds the liinear system.

Returns:

the system after build

main

public static void main(String[] args)