| Problem sets and exams -- 1999 |
Problem sets
| Problem set 1 | Answer key |
| Problem set 2 | Answer key |
| Problem set 3 | Answer key |
| Problem set 4 | Answer key |
| Problem set 5 | Answer key |
Exams
| Exam 1 | Exam 1 answers |
| Exam 2 | Exam 2 answers |
| Exam 3 | Exam 3 answers |
| .. |