Here you'll find postings about homework, exams, and anything else that becomes relevant during the quarter.
New! Solutions to the final exam are available here.
Classes are on Monday, Wednesday, and Friday, 10:30am--11:20am, in 108 FSH (Fishery Sciences Building).
C-417 Padelford Hall: Monday 3--4pm and Tuesday, 4--5pm.
We will use Elementary Differential equations and Boundary Value Problems, 9th ed., by Boyce and DiPrima.
In general, problem sets will be due at the beginning of class on Wednesdays. Unless otherwise indicated (with an asterisk*), you must show all work.
| HW1: 7.1 (3,4,6,7,15); 7.2 (4,8,22,23); 7.3 (14,16,19)(8th ed.: 13,15,18); 7.4 (6). Due 4/4. |
| HW2: 7.5 (2*,9,14,15,31,32); 7.6 (1*,2*,9,26). Due 4/11. |
| HW3: 7.6 (8); 7.7 (1,6,12,17); 7.8 (1*,6,16,17); 7.9 (1,5,15,16). Due 4/18. |
| HW4: 9.1 (1*,4*,5*,6*) --do parts (a) and (b), and sketch a couple trajectories; 10.1 (1,3,5,7,8,14,15); 10.2 (1,3,5,9). Due 5/2. |
| HW5: 10.2 (15,17); 10.3 (2,3,6); 10.4 (5,6,9,15,17,18,35); 10.5 (1,2,6,9,10). Due 5/9. |
| HW6: 10.6 (7); 10.7 (4a,5a,14,15). Due 5/23. |
| HW7: 10.7 (16); 10.8 (3ab,5,15); 9.2 (3,6a), and the extra problem here. Due 6/1. |
An outline of topics is laid out below. Corresponding sections of the book are in parentheses; reading assignments should be done before the day the section is listed. Occasional reading quizzes may or may not be announced in advance.
| Monday | Wednesday | Friday |
| 3/26
Intro to systems of ODEs (7.1) |
3/28
Review of linear algebra (7.2) |
3/30
Review cont'd (7.3) |
| 4/2
Basics of linear systems (7.4) |
4/4
Homogeneous linear systems (7.5) HW1 due |
4/6
Complex eigenvalues (7.6) |
| 4/9
Fundamental matrices (7.7) |
4/11
Repeated eigenvalues (7.8) HW2 due |
4/13
Non-homogeneous systems (7.9) |
| 4/16
(9.1) |
4/18
(10.1) HW3 due |
4/20
(10.1) |
| 4/23
(10.1) |
4/25
(10.2) Small midterm |
4/27
(10.2) |
| 4/30
(10.3) |
5/2
(10.4) HW4 due |
5/4
(10.5) |
| 5/7
(10.5) |
5/9
(10.6) HW5 due |
5/11
(10.7) |
| 5/14
(10.7) |
5/16
Big midterm |
5/18
(10.7) |
| 5/21
(10.8) |
5/23
(10.8) HW6 due |
5/25
(10.8) |
| 5/28
Memorial Day (no class) |
5/30
(9.2) |
6/1
(9.5) HW7 due |
The dates for the midterm and final exams are as follows:
| Small Midterm: | Wednesday, April 25 | 10:55--11:20 am (half class) | FSH 108 |
| Big Midterm: | Wednesday, May 16 | 10:30--11:20 am (whole class) | FSH 108 |
| Final Exam: | Monday, June 4 | 8:30-10:20 am | FSH 108 |
Solutions to Midterm 1 are available here.
Solutions to Midterm 2 are available here.
Solutions to the Final are available here.
| Small Midterm: | 10% |
| Big Midterm: | 20% |
| Final Exam: | 30% |
| Homework: | 40% |
Also, the homework component will be computed out of a total of 90%. This means that if there are a total of 100 points, and you score 72, your homework grade is 72/90 = 80%. (I'm doing this instead of dropping a lowest homework.)