hu.ibello.functions

Class LinearFunction

java.lang.Object

hu.ibello.functions.LinearFunction

All Implemented Interfaces:

Function

public class LinearFunction
extends Object
implements Function

A simple linear function.

 f(x) = a + b * x
 

Parameters are:

• a
• b

Author:

Kornél Simon

Constructor Summary

Constructors

Constructor and Description
LinearFunction()
LinearFunction(double a, double b)

Method Summary

Modifier and Type	Method and Description
double	getA()
double	getB()
double	getParameter(int paramIndex) Returns the value of a parameter by index.
int	getParameterCount() How many parameters this function has?
void	setA(double a)
void	setB(double b)
void	setParameter(int paramIndex, double value) Sets the value of a parameter by index.
String	toString()
double	value(double x) Value of the function at x.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface hu.ibello.functions.Function

getFormattedParameter, getParameters, setParameters

Constructor Detail

LinearFunction

public LinearFunction()

LinearFunction

public LinearFunction(double a,
                      double b)

Method Detail

getA

public double getA()

setA

public void setA(double a)

getB

public double getB()

setB

public void setB(double b)

value

public double value(double x)

Description copied from interface: Function

Value of the function at x.

Specified by:

value in interface Function

Parameters:

x - the input value

Returns:

function's value at x

getParameterCount

public int getParameterCount()

Description copied from interface: Function

How many parameters this function has?

Specified by:

getParameterCount in interface Function

Returns:

number of function parameters

getParameter

public double getParameter(int paramIndex)

Description copied from interface: Function

Returns the value of a parameter by index. The index of the first parameter is 0.

Specified by:

getParameter in interface Function

Parameters:

paramIndex - index of the parameter

Returns:

the parameter's value

setParameter

public void setParameter(int paramIndex,
                         double value)

Description copied from interface: Function

Sets the value of a parameter by index. The index of the first parameter is 0.

Specified by:

setParameter in interface Function

Parameters:

paramIndex - index of the parameter

value - new value of the parameter

toString

public String toString()

Overrides:

toString in class Object