### Winter 2020

#### Office Hours (Skye 259)

- Wednesday, 3–5 pm
- Thursday, 10–11 am
- Friday, 2–3 pm

My Wednesday office hours are primarily for students in Math 151B, while the Thursday and Friday office hours are primarily for students in 146B. Those students will be given priority at those times, though everyone is welcome to attend.

**NB:** I will be out of town from 14 January until 19 January. There will be no office hours on those days, but your discussion sections will still meet, and homework is still due as usual.

#### Math 146B.001 (Dr. Qi Zhang, primary instructor)

Discussion sections meet on Thursdays at 8:00 and 9:00 am in Skye 347.

**Homework**

- Homework 1 (due 16 January)
- (Boyce and DiPrima, p 226) 3, 6, 8, 10, 12, 14, 17, 18

- Homework 2 (due 16 January)
- (Boyce and DiPrima, p 233) 1, 5, 7, 8, 11, 13, 15, 38

- Homework 3 (due 23 January)
- (Boyce and DiPrima, p 239) 1, 2, 8, 14
- (Boyce and DiPrima, p 244) 1, 6, 14, 15

- Homework * (will not be collected)
- (Boyce and DiPrima, p 253) 1, 2, 3, 8, 10, 13, 17, 18, 21, 22

[no solutions provided]

- Homework 4 (30 January)
- (Boyce and DiPrima, p263) 1, 2, 3, 4, 13

- Homework 5 (6 February)
- (Boyce and DiPrima, p269) 1, 2, 8
- (Boyce and DiPrima, p280) 1, 4, 5, 9, 19, 22
- (Boyce and DiPrima, p286) 1, 3

- Homework 6 (13 February)
- (Boyce and DiPrima, p294) 1, 3, 5, 13, 14
- (Boyce and DiPrima, p305) 4, 5

- Homework 7 (20 February)
- (Boyce and DiPrima, p595) 1, 3, 7, 11, 14, 20
- (Boyce and DiPrima, p605) 1–6, 13, 15
- (Boyce and DiPrima, p612) 2, 4

**Quizzes**

- Quiz 1 (note that, due to a typographical error in the first problem, you did not have the tools to fully answer the question; I provided a solution to the homogeneous equation, but gave everyone credit for this problem)
- Quiz 2
- Quiz 3

#### Math 146B.010 (Dr. Liwei Chen, primary instructor)

The discussion section meets on Fridays at 3:00 pm in MSE 113.

**Homework**

- Homework 1 (due 17 January)
- (Boyce and DiPrima, page 226) 7, 11
- (Boyce and DiPrima, page 233) 11, 13, 17, 29, 31, 35
- (Boyce and DiPrima, page 239) 1, 3, 13, 15

- Homework 2 (due 31 January)
- (Boyce and DiPrima, page 190) 3, 5, 7
- (Boyce and DiPrima, page 253) 5, 7, 15, 18, 28
- (Boyce and DiPrima, page 263) 1, 2, 10
- (Boyce and DiPrima, page 269) 6

- Homework 3 (due 21 February)
- (Boyce and DiPrima, page 595) 1, 2, 14, 17
- (Boyce and DiPrima, page 605) 2, 4
- (Boyce and DiPrima, page 630) 1, 2, 3, 4

#### Math 151B.001 (Dr. Po-Ning Chen, primary instructor)

The discussion section meets on Wednesdays at 2:00 pm in Skye 347.

**Homework**

- Homework 1 (due 16 January) [solutions .pdf | .tex ]
- Homework 2 (due 23 January) [solutions .pdf | .tex ]
- Homework 3 (due 31 January) [solutions .pdf | .tex ]
- Homework 4 (due 6 February) [solutions .pdf | .tex ]
- Homework 5 (due 20 February) [solutions .pdf | .tex ]