September 21

• The due dates of problem sets 2, 3, 4 have been changed from Friday to the Monday after, but problem set 5 is still due on the Friday 10/15.
• Please take a few minutes to check in online if you have not already done so.

September 14

• Apparently there was a problem with the previously posted version of notes for lecture 2, preventing its printing on some computers. A new version has been posted which has hopefully resolved this problem.
• Please take a few minutes to check in online if you have not already done so.

August 04

• Check in online.
  Please take a few minutes to check in online. THIS IS VERY IMPORTANT!