**Exercises:** Due at the start of class on Wednesday 19 February.
(Exam #1 will be held on Wednesday 12 February.)

**Note (1):** A few students have pointed out that in Section 2.9 problem
3 does not have parts c and e. They have suggested that problem 4ce may have
been what I intended. They may be right. I am stuck home today and don't
have a copy of the book with me. First thing Tuesday morning I will check this
and post another update.

**Note (2):** Those students were correct. I've corrected the assignment
above to reflect the change. If anyone needs extra time to complete problem
2.4.4ce, they can turn in that *one problem* on Friday, with no penalty. The
rest of the assignment should be turned in on Wednesday, as usual.