Author:
	Nelson H. F. Beebe
	University of Utah
	Department of Mathematics, 110 LCB
	155 S 1400 E RM 233
	Salt Lake City, UT 84112-0090
	USA
	Tel: +1 801 581 5254
	FAX: +1 801 581 4148
	Email: beebe@math.utah.edu, beebe@acm.org, beebe@computer.org (Internet)
