Teaching and Advising

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 y_icorresponds to x_i.
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!

PSU links

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Internet Links

games and math programming | 03 Logic: fallacy || Dantzig    at Stanford || Kantorovich | Nash |
90. Operations research, mathematical programming:   | Mathematical Programming Glossary | FAQ on LP |
     |   Bibliography for Discrete Event Systems Simulation: Optimization and Sensitivity Analysis    |
     |   Global optimization page (U Wien) | Global optimization page (BU) |
     |   Mathematical Optimization TU Braunschweig     | traveling salesman   | Interesting Models   |
     | Applied Management Science   | INFORMS Online   | Michael Trick's Operations Research Page |
Opportunities for Research Funding in Operations Research / Management Sciences |
simplex |

Edication: A.Toom |
college math: Dave's Tables Cool Math MBone Ask Dr. Math Common UG math errors WEB Tutorials
| Mathematics Journal for Undergraduates | math jokes more: 2 | 3 | 4 | 5 |

math instr manual | class lists by elion | www.medianet.libraries.psu.edu |

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