org.apache.commons.math
Interface Field<T>

Type Parameters:
T - the type of the field elements
All Known Implementing Classes:
BigFractionField, BigRealField, ComplexField, FractionField

public interface Field<T>

Interface representing a field.

Classes implementing this interface will often be singletons.

Since:
2.0
Version:
$Revision: 777521 $ $Date: 2009-05-22 09:48:21 -0400 (Fri, 22 May 2009) $
See Also:
FieldElement

Method Summary
 T getOne()
          Get the multiplicative identity of the field.
 T getZero()
          Get the additive identity of the field.
 

Method Detail

getZero

T 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.

Returns:
additive identity of the field

getOne

T 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.

Returns:
multiplicative identity of the field


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