For those not in class last Monday, we postponed test 1 to the 22nd of October (from the 15th) so that we can have a little more material.

In class I've been mentioning that one can use a spreadsheet to do most of the homework problems etc, but have said excel is known to have issues. In this article are several references to such: Excel issues. There is also an interesting point about excel incorrectly computing 850*77.1 (which is just shy of 2 to the 16th.)

THat's right, I asked you about time plots which we are going to skip, as we don't come back during the term to that concept.