Homework #5, due May 4, 2000 --- Note: the eres bulletin board is proving to be a very valuable resource for people doing homework.

discussion questions:
20-2, 20-5, 20-10, 20-12
21-11
excercises/problems;
20-23
21-7
21-11
21-12
21-17
21-31


Please continue to post comments on errors, ambiguities; and any others
thoughts, questions, insights, etc. on the eres bulletin board.