Dear Professor Schroeder, I appreciate the Calm problems however as I was unable to receive my credit as it was too late to enter them after midnight...I was wondering if you could extend the deadline. It would much appreciated.

-- Anonymous, April 15, 2000

Answers

Since I received a number of requests to extend the deadline for this week's CALM problems, here it is: this Sunday midnight.

-- Anonymous, April 15, 2000