| **Definition:** | | A package for typesetting graphs and diagrams using tex. It is structured as several modules, each defining a custom notation for a particular kind of graphical object or structure. Example objects are arrows, curves, and frames. These can be organised in matrix, directed graph, path, polygon, knot, and 2-cell structure. Xy-pic works with latex, ams-latex, ams-tex, and plain tex, and has been used to typeset complicated diagrams from many application areas including category theory, automata theory, algebra, neural networks and database theory. home. |