2007-04-30
----------

1. Please turn in your homework

2. Redistribute homework

3. Return exams:
(30% of grade)

letter range   # of students
A      27-30   17
B      24-26   4
C      21-23   4
D      18-20   2
F      <= 17   5

Average was 24.75 or a "B".
Median was 27 or an "A".

4. Start proof of quadratic reciprocity.
 a. restate it (pretend to mis-remember?)
 b. kr is a homomorphism
 c. Euler's criterion.
 d. Gauss's lemma (if time permits)