org.das2.datum

Class Ratio

java.lang.Object

org.das2.datum.Ratio

public class Ratio
extends java.lang.Object

Represent the ratio of two integers.

Field Summary

Fields

Modifier and Type	Field and Description
static Ratio	one
static Ratio	zero

Constructor Summary

Constructors

Constructor and Description
Ratio(int i)
Ratio(int n, int d)

Method Summary

Modifier and Type	Method and Description
Ratio	add(Ratio r)
static Ratio	create(double number)
static Ratio	create(java.lang.String s) parse aaa.bbbbEcc into Ratio.
Ratio	divide(Ratio r)
double	doubleValue() return the double value closest to this.
boolean	equals(java.lang.Object o)
static long	gcd(long a, long d) return the Greatest Common Divisor (GCD) of the two numbers.
int	hashCode()
boolean	isOne()
boolean	isZero()
static void	main(java.lang.String[] args)
Ratio	multiply(Ratio r)
Ratio	pow(Ratio r)
Ratio	sqrt()
Ratio	subtract(Ratio r)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

one

public static final Ratio one

zero

public static final Ratio zero

Constructor Detail

Ratio

public Ratio(int i)

Ratio

public Ratio(int n,
             int d)

Method Detail

gcd

public static long gcd(long a,
                       long d)

return the Greatest Common Divisor (GCD) of the two numbers.

Parameters:

a - the first number

d - the second number, slightly more efficient if this is smaller.

Returns:

the divisor.

create

public static Ratio create(java.lang.String s)

parse aaa.bbbbEcc into Ratio.

Parameters:

s -

Returns:

create

public static Ratio create(double number)

pow

public Ratio pow(Ratio r)

sqrt

public Ratio sqrt()

multiply

public Ratio multiply(Ratio r)

divide

public Ratio divide(Ratio r)

add

public Ratio add(Ratio r)

subtract

public Ratio subtract(Ratio r)

isZero

public boolean isZero()

isOne

public boolean isOne()

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

doubleValue

public double doubleValue()

return the double value closest to this.

Returns:

the double value closest to this.

main

public static void main(java.lang.String[] args)