org.jscience.mathematics.algebraic.fields
Interface Semiring

All Known Subinterfaces:

KleeneAlgebra

public interface Semiring

This interface defines a semiring (similar to a ring but without additive inverses).

Nested Class Summary

static interface

Semiring.Member This interface defines a member of a semiring.

Method Summary

boolean	isOne(Semiring.Member r) Returns true if the member is the unit element.
boolean	isZero(Semiring.Member g) Returns true if the member is the identity element of this group.
Semiring.Member	one() Returns the unit element.
Semiring.Member	zero() Returns the identity element.

Method Detail

zero

Semiring.Member zero()

Returns the identity element.

Returns:

DOCUMENT ME!

isZero

boolean isZero(Semiring.Member g)

Returns true if the member is the identity element of this group.

Parameters:

g - a group member

Returns:

DOCUMENT ME!

one

Semiring.Member one()

Returns the unit element.

Returns:

DOCUMENT ME!

isOne

boolean isOne(Semiring.Member r)

Returns true if the member is the unit element.

Parameters:

r - DOCUMENT ME!

Returns:

DOCUMENT ME!