Copyright (C) 1994-6  

   Permission is granted to any teacher or student to copy these files
for educational purposes.  They are also permitted to modify them for 
their own educational purposes, provided they agree to make their changes 
freely available to other teachers or students on request.


Carl Eberhart, Department of Mathematics, University of Kentucky
               carl@ms.uky.edu
               http://www.ms.uky.edu/~carl

