MATH 331

MATH 331 : SECTION 1 : SUMMER 2005

Instructor: Mike Diehl

Lecture: Monday - Friday: 11:15 - 12:45 in LGRC A201 (the low-rise)

Office Hours: The hour after class, everyday, in our classroom. Also by appointment via email.

HOMEWORK ASSIGNMENTS

HW #1 - Due Friday, June 10

HW #2 - Due Tuesday, June 14

2.3: 4, 21
2.5: 9, 22 : For #9, just find find the constant solutions, classify their stability and draw the slope field
2.6: 4, 10, 28 : For #28 try an integrating factor u(y)

EXAM #1 - Thursday, June 16

This covers everything up to and including section 2.6
You should bring a pencil/pen, but NO CALCULATORS are needed
Here are some review problems...we can go over some in class on Wednesday
- Page 131: 1, 6, 10, 14, 20, 21
- Section 2.3: 1, 22
- Section 2.5: 12
These problems are probably a little harder than what you'll see on the exam, but they are good practice

HW #3 - Due Tuesday, June 21

HW #4 - Due Friday, June 24

Exam #2 - Tuesday, June 28

This exam covers all of the material that we did from chapter 3. It does NOT include Laplace transforms
You should bring a pen/pencil, but NO CALCULATORS are permitted on this exam
Here are some review problems....we can go over some of them on Monday
- 3.1: 10
- 3.4: 11
- 3.5: 6, 26
- 3.6: 8, 16
- 3.7: 6, 15
- 3.8: 11 - just setup and solve the system
- 3.9: 5, 7ab
On the exam, I will make the math computations easy, and I'll be sure to give you the value of the appropriate gravitational constant. Also, you won't have to worry about converting units.
Just a reminder/warning: Calculus mistakes were abundant in the first exam, so please review your skills and take your time on the exam. I will be grading this exam more strictly.

HW #5 - Due Friday, July 1

HW #6 - Due Thursday, July 7

HW #7 - Due Tuesday, July 12

7.5: 15, 29
7.6: 10
7.7: 3, 11 - You should find the essential matrix, then use it to solve #11
7.8: 1
7.9: 4
Don't worry about doing graphs....
You MUST turn in your last HW to me by Tuesday...no late HW accepted this time. I will return it on Wednesday with solutions that we can discuss.
NOTE: If you have not turned in some assignment this semester, this may hurt your grade. I'd encourage you to turn in something to get credit. You can just pick some problems that are similar to the assigned ones (like the number before or after it), and I'll accept these for some credit.

FINAL Exam - Thursday, July 14

This final exam is semi-cumulative, and I expect it to be longer than the first 2 exams
It will stress the material since the last exam, which is all of chapter 6 and the material we covered from chapter 7, which was contained in sections 1, 3, and 5-9. I will provide you with a copy of the Laplace transform chart from the book.
In addition, there will be problems from chapter 2, which was solving first order equations (linear, separable, exact, homogeneous).
There will be no problems from chapter 3 nor will there be any word problems on this exam.
Integration difficulty will be limited to u-substitution...no integration by parts
You should bring a pen/pencil, but NO CALCULATORS are permitted on this exam

REVIEW PROBLEMS AND THIS WEEK

We have finished all of the material for the course, so we will spend this week reviewing. On Monday, I will give a general overview of things you should know. In addition, I will be happy to answer any questions you may have about any topic, either in general or with a specific problem.
If you guys don't have questions then we may leave early, but I'll try to bring some problems that we can work on in groups.
I'd suggest re-doing review and HW problems from chapter 2 in preparation for the exam.
Here are some review problems for the new material...these might be a bit harder than what you'll see...
- 6.2: 7, 9, 21
- 6.3: 15, 17
- 6.4: 1, 9
- 6.5: 1, 5
- 6.6: 10
- 7.5: 2, 16
- 7.6: 3, 9
- 7.7: 1, 5 - Find the essential matrix
- 7.8: 2, 10
- 7.9: 2, 8