Xy-pic

graphics, publication 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 plainTeX, and has been used to typeset complicated diagrams from

many application areas including category theory, automata

theory, algebra, neural networks and database theory.

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(1997-11-20)