''Mathematical Illustrations, A Manual of Geometry and PostScript'' by Bill Casselman http://assets.cambridge.org/97805215/47888/cover/9780521547888.jpg ISBN 0521547881 A version is available on line at http://www.math.ubc.ca/~cass/graphics/manual/. This book provides an introduction to ProgrammingPostscript as well as a lot of discussion of the mathematics involved. The examples can be run using, for example, GhostScript. -- JohnFletcher ---- CategoryBook CategoryMath