by L.N.Vaserstein

Spring 2000    |   Fall 2000   | Spring 2001  |  Fall 2001 Roe |
Spring 2002
 Math 484.1, Linear Programming |  outlines & grading textbook: class notes. |   integrity | class time: MWF  10:10-11, 102 McAllister office hours:  MWF 8:30-10:00 am. 205 MB Current Topic:    ch.6 100%= 466  pts after  h8 =  sum of max. reg. max=446  pts.
Jan 6. Number of students : 40 .
Jan 7 class. See corrected handout:  outlines & grading
Quiz (q1). Problem 1: Most of students got  the answer:  x=-53,  y = - 37.
Problem 2: Most of students got  x=b/a  which works only  for nonzero a.   2 pts were given for this.
The best score was 4 pts. The problem  is solved in the class notes. Similar problems will
be given again and again until most of students learn to avoid division by 0.
Jan 9 class. q2: Both 0=0 and 0=1 are linear constraints. Moreover, they are the most important
linear  equations.
Jan 16. q3:  min=-72 at x=0, y=-9.  The feasable region is a hexagon.
Jan  18. 0=1 is a linear equation with no solutions.
F Febr 1:   § 9. Homework 3 collected, 20 pts.
M Febr 4:  § 10.
W Febr 6: midterm 1,  50 points, covers  ch. 1-3. pictures.
M Feb. 18. h5 (solve your diet problem)  due, 30 pts.
F Febr 22. q5,  In Ex.7, the "solution"  does
not satisfy any of 3 constraints in the tableau.
In Ex.8-10, the solution is feasible.
The solutions in  Ex.7,8, 10 cannot be optimal because the values
for the objective function, 13,2,3 are greater
than the value -1 in Ex. 9.
The solution in Ex.9 is optimal, because  -1 is a feasible value for
the dual problem:  y6=1,y7=2,y8=1, all other y's = 0,
where yi corresponds to xi.
W Febr 27. Midterm 2,    solving linear programs., 50 pts. pictures
Midterm 4 pictures.
F April 19. The last homework, h8 due M. Solve the  two problems from q8,
15 pts  for each problem.
F April 26,  the last class.  Grades for 38 students:
W, WF,WN, 3 WP, F, D, 2 C, 2 C+, the rest are B- or better.

Corrections  to the class notes.

tdcp was corrected on April 21, 2002.
ch 1 was corrected on April 21, 2002.
ch 2-5 were corrected on March 13, 2002.
ch 6 was corrected on March 20, 2002.
ch7 was corrected on March 13, 2002.
ch8 was corrected on April 22, 2002.
ap  was corrected on April 21, 2002.
bai was corrected on March 14, 2002.

Internet humor

So I spend 2 weeks collecting data to show that it is linear,  and it turns
out to be certainly NOT linear and most definitely parabolic, so I call a
meeting of the hardware people to discuss options for fixing  the hardware  so
that my data does come out linear, and the solotion was:  Ignore the data on the right side of the parabola.
Then the data on the left side looks almost linear.  Problem solved!

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