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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).
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package JSci.maths.categories;
/**
* This interface defines a functor.
* @jsci.planetmath Functor
* @version 1.0
* @author Mark Hale
*/
public interface Functor extends Category.Morphism {
/**
* Maps an object from one category to another.
*/
Object map(Object o);
/**
* Maps a morphism from one category to another.
*/
Category.Morphism map(Category.Morphism m);
/**
* Returns the composition of this functor with another.
*/
Functor compose(Functor f);
}