MA-351 Introduction to Discrete Mathematical Models Fall 2004 Williams 2112, Tue&Thu 09h50-11h05

 Syllabus People Exams Homeworks Current Enrollment (Sep 15) Web resources

## Current Announcements

• NEW The course grades have been submitted to TRACS (Dec 15, 10:50am). Here is a sorted anonymous list.
• NEW Answer to bonus homework (Rachel Chaves): Consider the profile
```8  10 16 | plurality with instant runoff
=========|==============================
A  B  C  | B
B  C  A  | C
C  A  B  | A
```
A is last in first place votes, so comes in last. In the instant runoff without A, B wins over C with 18 vs. 16 votes.

Now C withdraws after the election. The profile becomes
```8  10 16 | plurality with instant runoff
=========|==============================
A  B  A  | A
B  A  B  | B
```
so A now wins over B with 24 vs. 10 votes, in violation of the axiom of independence of irrelevant alternatives, which in this case is C.

 This semester's first and second midterm examinations (for dates see syllabus) Homework 1, due Sep 7, in class. Homework 2, due Sep 15, in my mailbox. Homework 3, due Oct 14, in class. Homework 4, due Nov 2, in class. Homework 5, due Dec 2, in class. Homework 6 (bonus), due Dec  14, 5pm. Web resources for the course Maple basic lesson from MA 141 W3C's XML index page. W3C's MathML 2.0 specification W3C's MathML 1.01 specification L-system tutorial Fractal microscope (Java applets) Local files are Unix tarred in the password-protected course locker.

## Old Announcements

• Homework 1 is posted; due Tuesday, Sep 7, 9:50am in class.
• Mrs.  Gunton has found a better classroom for us. Class will meet in Williams 2112. On Thursday Aug 26 at 9:50am I will walk with any of you from HA 353 to the new class room.
• The course web sites for Fall 2003, Fall 2002, Fall 2001, and Fall 1999 contain old homeworks, mid-semester exams, and anonymous grade lists.
• Homework 2 is posted; due Tuesday, Sep 14, 9:50am, in class.
• I have posted the solution to last year's first exam.
• The deadline for Homework 2 is extended to Wednesday, September 15, 9:50am. Please place the homeworks into my mailbox in HA 245 by then. If you hand in your homework on Tuesday Sep 14 in class, I will be able to return the graded homework to you in class on Thursday, Sep 16. I may not be able to return the homeworks that I receive on Wednesday by Thursday. If you hand in your homework in class on Thursday, Sep 16, at 9:50am, your homework will be one day late with a 20% penalty. I cannot accept any later submission as we will go over the homework then.
• Here is the Maple 7 (or 8,9) worksheet that demonstrates matrices. Note that you can load it by selecting "Maple text" and load it as Maple text. Then run it via edit->execute->worksheet. Lines that you type in are marked by "> ". The worksheet may be helpful in doing homework 2. Homework 3 is
• The sorted grades for exam 1.
• Homework 3 is posted. You should be able to solve problem 1. You will be able to do problem 2 after class on Tuesday, Oct 12, or you can read ahead in the book.
• The sorted grades for exam 1.
• The second mid-semester exam is on Thursday, November 4, during class. You can bring two 8.5 by 11 sheets of paper with notes on both sides. I have posted the solution of last year's second exam.
• Homework 4 is posted. You should be able to solve problem 1. You will be able to do problems 2 and 3 after class on Thursday, Oct 28, or you can read the online notes linked in the syllabus.
• Problems 2 and 3 of homework 5 are posted. The assignment is now complete. The deadline is extended to December 2, so that you can see me during office hours on Tuesday, November 30.
• The bonus homework 6 is posted. In my grade computation, I will add your achieved points to your homework total but not to the maximum homework total that is used for scaling your total percentage.
• These topics have been approved for presentation. The time slots for the presentations are on the syllabus. The term papers for your topics are due in my hands on December 5pm.
• If you choose a topic that is not from the book, please make me a copy of what you read and provide me with a full citation.
• The first problem of homework 5 is posted.
• The sorted grades and solution of exam 2.
• My office hours are listed on my schedule.