eu.bandm.sig.adlib2

Class IntFraction

java.lang.Object

eu.bandm.sig.adlib2.IntFraction

All Implemented Interfaces:

Comparable<IntFraction>

public class IntFraction
extends Object
implements Comparable<IntFraction>

Representation of fractions.

A fraction is a pair of values, namely the numerator and the denominator, respectively, and represents their quotient.

This class provides fractional arithmetic operations. Note that those are not optimized for high performance or low memory usage. Thus, computations implemented by this class should be used only at construction time of a network. For realtime fractional computations, use IntSignalSourceFraction instead.

Field Summary

Fields

Modifier and Type	Field and Description
static IntFraction	NEGATIVE_INFINITY The fractional representation of negative infinity.
static IntFraction	NOT_A_NUMBER The fractional representation of an undefined quantity.
static IntFraction	ONE The fractional representation of the number one.
static IntFraction	POSITIVE_INFINITY The fractional representation of positive infinity.
static IntFraction	ZERO The fractional representation of the number zero.

Constructor Summary

Constructors

Constructor and Description
IntFraction(int numerator, int denominator)

Method Summary

Modifier and Type	Method and Description
IntFraction	add(IntFraction other)
int	compareTo(IntFraction other)
IntFraction	divide(IntFraction other)
double	doubleValue()
boolean	equals(Object o)
float	floatValue()
int	getDenominator() Returns the denominator of this fraction.
int	getNumerator() Returns the numerator of this fraction.
int	hashCode()
boolean	isNaN()
IntFraction	multiply(IntFraction other)
IntFraction	negate()
IntFraction	reciprocal() Returns the formal reciprocal of this fraction.
int	signum()
IntFraction	subtract(IntFraction other)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

ZERO

public static final IntFraction ZERO

The fractional representation of the number zero.

ONE

public static final IntFraction ONE

The fractional representation of the number one.

POSITIVE_INFINITY

public static final IntFraction POSITIVE_INFINITY

The fractional representation of positive infinity.

NEGATIVE_INFINITY

public static final IntFraction NEGATIVE_INFINITY

The fractional representation of negative infinity.

NOT_A_NUMBER

public static final IntFraction NOT_A_NUMBER

The fractional representation of an undefined quantity.

Constructor Detail

IntFraction

public IntFraction(int numerator,
                   int denominator)

Method Detail

getNumerator

public int getNumerator()

Returns the numerator of this fraction.

getDenominator

public int getDenominator()

Returns the denominator of this fraction.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

reciprocal

public IntFraction reciprocal()

Returns the formal reciprocal of this fraction.

Returns:

a fraction where numerator and denominator are exchanged

floatValue

public float floatValue()

doubleValue

public double doubleValue()

isNaN

public boolean isNaN()

compareTo

public int compareTo(IntFraction other)

Specified by:

compareTo in interface Comparable<IntFraction>

signum

public int signum()

add

public IntFraction add(IntFraction other)

subtract

public IntFraction subtract(IntFraction other)

multiply

public IntFraction multiply(IntFraction other)

divide

public IntFraction divide(IntFraction other)

negate

public IntFraction negate()