JSci.maths.groups.Monoid Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jsci Show documentation

JSci is a set of open source Java packages. The aim is to encapsulate scientific methods/principles in the most natural way possible. As such they should greatly aid the development of scientific based software. It offers: abstract math interfaces, linear algebra (support for various matrix and vector types), statistics (including probability distributions), wavelets, newtonian mechanics, chart/graph components (AWT and Swing), MathML DOM implementation, ... Note: some packages, like javax.comm, for the astro and instruments package aren't listed as dependencies (not available).

The newest version!

package JSci.maths.groups;

/**
* This interface defines a monoid.
* @jsci.planetmath Monoid
* @version 1.0
* @author Mark Hale
*/
public interface Monoid {
        /**
        * Returns the identity element.
        */
        Member identity();
        /**
        * Returns true if the member is the identity element of this monoid.
        * @param g a monoid member
        */
        boolean isIdentity(Member g);

        /**
        * This interface defines a member of a monoid.
        */
        interface Member extends Semigroup.Member {}
}