Richard J GaylordRichard J. Gaylord is Professor Emeritus at the University of Illinois at Urbana-Champaign. He is a Life member of Clare College at the University of Cambridge in Cambridge England. He has conducted research in theoretical polymer physics and on randm walks, as well as in computer simulation modeling in the physical, chemical, biological, economic, and social sciences using Mathematica and is the author of numerous books on Mathematica. Read More Read Less