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Java > Open Source Codes > org > jscience > mathematics > structures > Ring


1 /*
2  * JScience - Java(TM) Tools and Libraries for the Advancement of Sciences.
3  * Copyright (C) 2006 - JScience (http://jscience.org/)
4  * All rights reserved.
5  *
6  * Permission to use, copy, modify, and distribute this software is
7  * freely granted, provided that this notice is preserved.
8  */
9 package org.jscience.mathematics.structures;
10
11 /**
12  * This interface represents an algebraic structure with two binary operations
13  * addition and multiplication (+ and ·), such that (R, +) is an abelian group,
14  * (R, ·) is a monoid and the multiplication distributes over the addition.
15  *
16  * @author <a HREF="mailto:jean-marie@dautelle.com">Jean-Marie Dautelle</a>
17  * @version 3.0, February 13, 2006
18  * @see <a HREF="http://en.wikipedia.org/wiki/Mathematical_ring">
19  * Wikipedia: Mathematical Ring</a>
20  */
21 public interface Ring<R> extends GroupAdditive<R> {
22
23     /**
24      * Returns the product of this object with the one specified.
25      *
26      * @param that the object multiplier.
27      * @return <code>this · that</code>.
28      */
29     R times(R that);
30
31 }
32
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