Reminder to submit problem sets for approval befor exam

This is a reminder that you have to submit two of the weekly problem sets and get them approved in order to eligible for the exam. If you haven't submitted any problem sets yet and you plan to take the exam: please submit answers to the remaining two problem sets (Problem set 9 and 10)!

If you plan to take the exam, but know that you will be unable to submit enough problem sets: send me an email as soon as possible, or come talk to me.

Note: if you've taken the course before and only plan to retake the exam, then the above does not apply to you.