FractionField (Commons Math 2.2 API)

java.lang.Object
- org.apache.commons.math.fraction.FractionField

All Implemented Interfaces:

java.io.Serializable, Field<Fraction>
```
public class FractionField
extends java.lang.Object
implements Field<Fraction>, java.io.Serializable
```
Representation of the fractional numbers field.
This class is a singleton.

Since:

2.0

Version:

$Revision: 811827 $ $Date: 2009-09-06 17:32:50 +0200 (dim. 06 sept. 2009) $

See Also:

Fraction, Serialized Form

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static FractionField`	`getInstance()`	Get the unique instance.
`Fraction`	`getOne()`	Get the multiplicative identity of the field.
`Fraction`	`getZero()`	Get the additive identity of the field.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getInstance
```
public static FractionField getInstance()
```
    Get the unique instance.
    
    Returns:
    
    the unique instance
  - getOne
```
public Fraction getOne()
```
    Get the multiplicative identity of the field.
    The multiplicative identity is the element e₁ of the field such that for all elements a of the field, the equalities a × e₁ = e₁ × a = a hold.
    
    Specified by:
    
    getOne in interface Field<Fraction>
    
    Returns:
    
    multiplicative identity of the field
  - getZero
```
public Fraction getZero()
```
    Get the additive identity of the field.
    The additive identity is the element e₀ of the field such that for all elements a of the field, the equalities a + e₀ = e₀ + a = a hold.
    
    Specified by:
    
    getZero in interface Field<Fraction>
    
    Returns:
    
    additive identity of the field