org.apache.commons.math3
Interface Field<T>

Type Parameters:
T - the type of the field elements
All Known Implementing Classes:
BigFractionField, BigRealField, ComplexField, Decimal64Field, DfpField, FractionField

public interface Field<T>

Interface representing a field.

Classes implementing this interface will often be singletons.

Since:
2.0
Version:
$Id: Field.java 1416643 2012-12-03 19:37:14Z tn $
See Also:
FieldElement

Method Summary
 T getOne()
          Get the multiplicative identity of the field.
 Class<? extends FieldElement<T>> getRuntimeClass()
          Returns the runtime class of the FieldElement.
 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

getRuntimeClass

Class<? extends FieldElement<T>> getRuntimeClass()
Returns the runtime class of the FieldElement.

Returns:
The Class object that represents the runtime class of this object.


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