Math 333 Differential Equations
Tuesday and Thursday 9:4011:00am
Hayes Hall 311
Textbook
Differential Equations, Fourth Edition, by Blanchard, Devaney,
and Hall.
Office
Hours (Hayes 309A)
Monday 10:10
11:00
Tuesday 12:10
1:00
Wednesday 12:10
1:00
Thursday 11:10
12:00
Friday 11:10
12:00
Reading
Sections 
Due Date 
A Note to the Student, 1.1 1.3 
Thursday, 1/19 
1.4 
Tuesday, 1/24 
1.5 
Thursday, 1/26 
1.6 
Tuesday, 1/31 
1.7 
Tuesday, 2/7 
1.8, 1.9 
Thursday, 2/9 
2.1, 2.2 
Tuesday, 2/14 
2.3, 2.4 
Thursday, 2/23 
3.1 3.3 
Thursday, 3/1 
3.4 
Tuesday, 3/20 
3.5 
Thursday, 3/22 
3.6, 3.7 
Tuesday, 3/26 
4.1 
Thursday, 3/29 
4.2, 4.3 
Tuesday, 4/3 
5.1, 5.2 
Thursday, 4/19 
6.1, 6.2 
Tuesday, 4/24 
6.3, 6.4 
Tuesday, 5/1 
Homework
Turn in bold, green problems.
Assignment 
Problems 
Due Date 
1 
Sec 1.1: 3, 5, 15, 17, 21 Lab
1.1 Sec 1.2: 1, 3, 7, 9, 15, 17, 32, 34, 42 (answer is approx. 35 min) 
Tuesday, 1/24 
2 
All 1.2/1.3 worksheet
problems (Turn in 2a,
4, 7) Sec 1.3: 1, 5, 7, 11, 13, 14,
1517 (Note that we will be using dfield
instead of HPGSolver.) All 1.4 worksheet problems (Turn in 2b,
3) Sec 1.4: 1, 3, 10, 16 
Tuesday, 1/31 
3 
Sec 1.5: 1, 4, 5, 6, 7, 8, 9, 10, 13, 18 Sec 1.6: 5, 7, 11, 13, 17, 18, 28, 29, 31, 35, 36, 39, 4547 
Tuesday, 2/7 
4 
Sec 1.7: 3, 8, 9, 11, 13, 15, 18, 19, 21 Sec 1.8: 13, 15 Sec 1.8 and 1.9: worksheet (2, 3b, 5, 6) 
Tuesday, 2/14 
5 
Sec 2.1: 16 (1, 4), 7, 9,
15, 17, 20 Sec 2.2: 1, 3, 9, 1127 odd (11, 17,
19, 27) 
Tuesday, 2/21 

Review Questions for ODK 1! (not to be turned in) Pg. 136: 154 odd, 10 Pg. 224: 2, 3, 57, 14, 17, 18 
Tuesday, 2/21 
6 
Sec 2.3: 5, 7, 8 Sec 2.4: 1, 4, 3, 5, 6, 11, 13 
Tuesday, 2/28 
7 
Sec 3.1: 3, 7, 9, 15 (can be done without the hint), 19, 20, 21, 28, 29, 34 Sec 3.2: 3, 4, 7, 11, 13, 21 Sec 3.3: 3, 5, 9, 11, 13, 19 
Tuesday, 3/20 
8 
Sec 3.4: 3, 5, 7, 9, 11, 13, 15, 23 Be prepared to present
your problem from #1720 in class on Thursday. Sec 3.5: 1, 3,
5, 7,
10, 12,
17, 1921,
23 
Tuesday, 3/27 
9 
Sec 3.7: 1, 2, 3, 5, 7, 9, 11 Sec 3.6: 3, 7, 9, 13, 17, 21, 25, 36
(essay means short paragraph) Sec 4.1: 5, 7, 11, 13, 19, 21, 25, 37 
Tuesday, 4/3 

Project
1: Lab 3.1 
Tuesday, 4/3 
10 
Sec 4.2: 1, 5, 9, 11, 13, 17,
19 Sec 4.3: 3, 11, 17, 20, 21, 24 Write in two different ways using
Eulers formula. Equate real and imaginary parts and use the identifications and to derive two trig identities
(one of which is used in the analysis of beating in your text) that lead to
understanding of beating behavior in general. 
Tuesday, 4/10 

Project
2: Tacoma Narrows Bridge 
Thursday, 4/26 

Review Questions for ODK 2! (not to be turned in) Pg. 224: 137 odd (no Euler, SIR or Lorenz Sec. 2.5, 2.7, 2.8.
We did talk about the rough ideas in Sec 2.6) Pg. 376: 132 odd (no 3D systems Sec 3.8) Pg. 449: 127 odd (no formulas for amplitude/phase, Tacoma
Narrows Sec 4.4, 4.5) 
Thursday, 4/12 
11 
Sec 5.1: 1, 3, 4, 5, 7, 9, 11, 17, 23, 25, 30 Sec 5.2: 1, 2, 3, 5, 7, 9, 17, 18 Work on projects! 
Tuesday, 4/24 
12 
Sec 6.1: 6 (if you know how to
do induction, you should try #5!) 15, 19, 25, 27 Sec 6.2: 2, 11, 13, 16, 17 
Tuesday, 5/1 
13 
Sec 6.3: 3, 5, 8, 17, 27, 29, 31 Sec 6.4: 3, 5, 6, 9 (cool! but not required) 
Monday, 5/7 