# Math 431 - Differential Equations II - Summer 1999

Section 30638 - MTWRF 1:30-3:00 - Ayres 118
### Resources:

- Text: Elementary Differential Equations and Boundary Value Problems, 6th Edition, by W.E. Boyce and R.C. DiPrima, 1997.
- Class Outline. Contains topics covered, important concepts and homework problems. Updated regularly.
- Math Tutorial Center. Get help on any mathematical question,
especially in the 100-200 level material. Open Tues 10:30-2:00, Wed 9:00-12:30 and Thursday 9:30-1:00.

dfld.m MATLAB file to plot a direction field. I
put comments in the file, so if you know MATLAB you should be able to use it.
### Class Log (in reverse chronological order)

- Apparently I haven't been keeping up with this, and since
we only have 4 more days of class, I'm not going to worry about it.
If you have any questions, just ask me.
- Tue 6/22 - Start Chapter 7
- Mon 6/21 - Assing HW #4, Due Thursday 6/24, 5.7#13, 14, 5.8#2
- Thu 6/17 - Assign HW #3, Due Tuesday 6/22 5.2#5, 8, 5.3#6, 5.4#4, 5.6#7, 5.7#3
- Wed 6/16 - Handout HW List #3
- Tue 6/15 - Return HW, pass out Take Home Exam (due Thursday, 6/17)
- Thu 6/10 - Begin new material, Chapter 5
- Wed 6/9 - Last of Chapt. 3, Chapter 4, Assigned HW #2, Due Friday
6/11, 3.1#5, 3.2#13, 3.4#9, 3.5#12, 3.6#7, 3.7#5
- Tue 6/8 - Finish Chapter 3, non-homogeneous ODEs
- Mon 6/7 - Misc methods, begin Chapter 3 (2nd order linear ODEs)
- Fri 6/4 - More 1st Order ODEs (2.8, 2.9, 2.11) Assigned Homework #1 Due Tuesday 6/8: 1.1#12, 2.1#15, 2.3#6, 2.8#7, 2.8#25, 2.9#12
- Thu 6/3 - Introduction, Review 1st Order ODEs (1.1, 2.1, 2.2, 2.3)

### Grading:

- Homework/Quizzes (20%)
- Homework #1 (20 pts) Due 6/8
- Homework #2 (20 pts) Due 6/11
- Homework #3 (20 pts) Due 6/22
- Homework #4 (20 pts) Due 6/24

- Exams
- Exam 1 (25%) Take Home, Due Date: Thursday 6/17 (On Chapters 1, 2,3 & 4)
- Exam 2 (25%) Date: Tuesday, 6/29 (On Chapter 5 & part of 7)
- Comprehensive Final Exam (30%) (Chapters 1-5, 7, 9) Date: 7/7 (Last Day of Class)

### Instructor:

Charles Collins

317E Ayres Hall

974-4269 or 974-2461

ccollins@math.utk.edu
Office Hours: After Class, in Ayres 317E

ccollins@math.utk.edu
*Last Modified: June 1, 1999*