Some notes on the first midterm, MATH222, Fall 2004.

TIME AND VENUE:
Oct 5 at 7pm-8.15pm, Room 220DL

REVIEW SESSION:
There will be a review session on Monday night
between 7.00 and 9.00. (This session replaces
the problem sessions on Tu and We night.) I have
a room reserved (AKW 200) but I'm trying to find
another one since the front door of AKW is locked 
at night. Stay tuned.

HOMEWORK:
Homework 5 will be collected on Friday Oct 8th.

MATERIAL COVERED:
The midterm covers all material in sections 
1.1 - 1.5, 1.7 - 1.9, 2.1, 2.2.
Additionally, from sections 1.6 and 1.10, the
material on network flows, chemical reactions 
and electrical circuits is included. There
will be at most one question on these applications
(do not spend time learning about electrical 
circuits if you've never seen anything like it
before).

The most important concept in the first third
of the class is Gaussian elimination -- how to 
systematically reduce a system of equations to 
echelon form. It is very important that you 
understand the relationship between the locations 
of the pivot positions and the set of solutions 
for the corresponding system of equations (see 
for instance questions 23-28 in section 1.2). 
Essentially all subsequent sections in chapter 1 
consist of reformulations of this material.

SAMPLE PROBLEMS:
Most of the exam questions will be very similar to 
the homework problems. I include a list of important
exercises from the book that you may use to review 
the material:

1.1: 7, 19-22, 25
1.2: 1-20, 23-28 (there WILL be a question similar to 15/16)
1.3: 11-14, 17-22, 25, 26
1.4: 1-10, 27, 28, 31, 32
1.5: 1-14, 29-34
1.7: 9-20, 23-30
1.8: 17-20, 25, 31
1.9: 25-28, 31-35
2.1: 13, 17-26
2.2: 11-24, 35