I have decided to make the final exam OPTIONAL. This means that
on Friday, April 26th, I will post your grades based on all 
components of evaluation except the last four homeworks and
the final. After finding out your grade, you have the choice of
not taking the final. If you do not take the final, then your
course grade will be the one I assign to you on April 26th. If 
you do take the final then your grade may improve or change for
the worse depending on your performance in the final. Please
let me know if you are interested in taking the final before 
Monday April 29th. If there is one or more student taking the
final, then I will post an exam on Monday, April 29th and the
exam will be due back on Thursday, May 2nd.