Computational Discrete Mathematics: Combinatorics and Graph Theory with Mathematica ®
"This book is the definitive reference guide to Combinatorica -- an extension of the popular computer software, Mathematica -- with examples of the 450 combinatorics functions.  The authors developed the newest version of this software that has dramatic improvements in graphical processing performance, representation, visualization, and many brand new functions...This book is highly recommended.  It is a well organized and readable textbook for beginners and intermediate students."    Leonardo