JHR's MA375 page
MA375
Discrete and Combinatorial Algebra II
MTRF 8 G221
John Rickert,
Associate Professor of Mathematics
Office: G-215A, Crapo Hall
Phone: (812) 877-8473
e-mail: rickert@rose-hulman.edu
Office hours: MTRF 7, MTR 9 or make an appointment, or drop in.
Here's my
Schedule
To Homework
...Questions
Homework for our next class
...Today's questions
For Tuesday, November 29:
Section 6.1 #8,12,15,24,25.
Question: If B={0,10,011},
then what are the smallest distinct positive values n and m, so that the intersection of
Bn with Bm is not empty?
For Thursday, December 1:
Turn in the Section 6.1 homework.
For Friday, December 2:
Section 6.2 #1,3,5.
For Monday, December 5:
Section 6.3 #1,4,5.
Turn in the Section 6.2 homework.
For Tuesday, December 6:
Secion 7.1 #1,5,6,15.
For Thursday, December 8:
Section 7.2 #1,2.
Turn in the Section 7.1 homework.
If R is an equivalence relation on A;
1. What are the possible values of |R| - |A|?
2. Is it true that R2 = R?
For Friday, December 9:
Section 7.2 #16,18,21,24.
For Monday, December 12:
Section 7.3 #1,20,27.
Turn in the Section 7.2 homework.
For Tuesday, December 13:
Section 7.4 #1,6,9,13,14,17.
For Thursday, December 15:
Turn in the Section 7.4 homework.
For Friday, December 16:
Section 7.5 #1,3.
I have returned the worksheets. As two people did not turn in the worksheets, I was unable to determine the identity of the worksheet with no name.
For Monday, December 19:
Exam #1 average was 87.5 out of 115.
Equivalent grades are A 100-114, B 85-99, C 70-84, D 55-69, F <55.
For Thursday, January 5:
Section 8.1 #5,6,13,23,26,29.
For Friday, January 6:
Continue to work on
Section 8.1 #5,6,13,23,26,29.
We will have an inclusion-exclusion quiz Friday.
For Monday, January 9:
Turn in the Section 8.1 exercises.
Continue to determine coefficients for counting the number of things with exactly one of the four properties. Continue for exactly two proerties, three, four.
What happens if there are five properties?
For Tuesday, January 10:
Section 8.2 #2,4,8.
There is no class Thursday, January 12.
For Friday, January 13:
Rework Section 8.2 #2,4,8.
For Monday, January 16:
Section 8.3 #1,5,6,11.
For Tuesday, January 17:
Come to class with questions on the material through Section 8.3.
Think about Rook polynomials.
Exam #2
For Monday, January 23:
Section 8.5 #3,4.
For Tuesday, January 24:
Section 8.5 #10,12.
For Thursday, January 26:
Section 9.1 #1; Section 9.2 #1,3,5.
For Friday, January 27:
Section 9.2 #9,13,18,24,27.
For Thursday, February 2:
Section 9.3 #1,6,7,9.
For Friday, February 3:
Section 9.4 #1,3,6,9;
Section 9.5 #1,3,7
For Monday, February 6:
Read Section 10.1.
For Tuesday, February 7:
Sec 10.1 #1; Sec. 10.2 #1,4,7,8,12,15,18,21,23,25,30,33.
For Thursday, February 9:
Sec 10.1 #1; Sec. 10.2 #1,4,7,8,12,15,18,21,23,25,30,33.
Friday, February 10:
Exam #3
For Tuesday, February 14:
Section 10.3 #1,4,6,8,14.
For Thursday, February 16:
Section 10.4 #1,2,3.
Exam #1: December 19
Exam #2: January 19
Exam #3: Feb 9 or 10
Answers should be explained. The correct answer will be worth 1 point. The rest of the credit comes from correctly explaining how the answer is found. The words "used Maple" are not an explanation and will result in a loss of
1 point. When you use Maple, you must explain what you've done mathematically.
The final exam will be given during finals week. If you are making arrangements for travel home, you should make sure that they will not conflict with the final exam schedule. If your parents will be purchasing airline tickets for you, you should contact them and remind them not to schedule you on a flight that might cause you fail a class.
The weights for the grade are given below.
A stapler is probably a good investment for most of you. Multi-page homeworks should be stapled together, not mutilated.
Place your name and Campus Mailbox number in the upper right-hand corner of your homework.
Homework is due at the beginning of class on the day that it is due.
You should turn in your homework in a pile on the desk at the front of the classroom.
Homework may be turned in later but will be penalized based on just how late it is - typically
1 point off for turned in late during the class,
5% off for being turned in late the same day,
10% off per day. (weekends count for two days)
i.e. 10 days later, it's too late to get a makeup homework turned in.
When writing up homework, you should circle (or otherwise clearly indicate) your answers.
It's good to work together, but you should write/type your own homework.
Simply copying another person's work or Maple file is not acceptable.
The grader and I reserve the right to return as unacceptable any homework that is inadequately prepared. (full of scratch work, problems out of order, submitted on crumpled or fringed paper)
If you have any questions while I'm not around, you may e-mail me at
john.rickert@rose-hulman.edu and I will reply as soon as I can.
You should come to class prepared. This means that I expect you to have done the homework, brought your book to class and be prepared with questions about material that you don't understand.
- If you don't understand something, ASK
- If I'm going too fast, STOP ME.
I enjoy mathematics. When I get on a roll, I tend to keep going.
- SHOW YOUR WORK. The correct answer will only be worth 1 point. I want to verify that you understand the process.
- If you are having problems understanding the material, see me as soon as possible.
There will be 3 in-class exams each worth 18%.
The final examination will be worth 36% of the grade.
Quizzes and Homework will be worth 10%.
There may be two types of quizzes -- announced and unannounced.
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