Contact information:
Email address is rsc@cs.csustan.edu or cunningham@siggraph.org
Draft notes and other materials are online at http://www.cs.csustan.edu/~rsc/NSF/
This work is supported by National Science Foundation grant DUE-9950121. All opinions, findings, conclusions, and recommendations in this work are those of the author and do not necessarily reflect the views of the National Science Foundation.