Website for Math 432 Differential Equations

 

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Handouts

Course Guide

Rules for Homework Assignments

What Makes a Good Graph

Here are some additional practice exercises on modeling (click here), Euler's method (click here), the improved Euler method (click here), and Runge-Kutta methods (click here). And here (click) are the answers.

 

Assignments

1.1: 1, 3, 4, 5, 7, 8, 9, 11, 12, 13, 15, 16

1.2: 1, 2, 3, 5, 8, 9, 12, 13, 15, 18, 19, 21, 22, 23, 27, 28, 30, and 31.

1.4: 1, 5, 6, 7, 8, and 14.

 

2.2: 1, 3, 5, 6, 7, 11, 16, 19, 23, 26, 27, 28, 37(a&b), and 38.

2.3: 1, 2, 3, 4, 5, 6, 9, 13, 16, 17, 21, 22, 25, and 38.

2.4: 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 14, 17, 20, 21, 25, 26, and 29.

2.5: 1-10, 12, 13, and 14.

2.6: 1-8, 11, 19, 25, 34, 39, and 40.

 

3.2: 1, 6, 9, 13, 14, 19, 21, 24, 25

3.3: 5, 8, 11, 15

3.4: 5, 6, 9, 18

3.6: 7, 8, 9, 10, 11, 12.

3.7: 1, 3, 5, 6, 8, and 9.

 

4.2: 1, 7, 11, 12, 13, 17, 20, 21, 24, 27, 30, 31, 37, 41, 43, and 44.

4.2: 11, 20, 37, 41, 43, and 44.

4.3: 1, 5, 8, 11, 17, 20, 21, 24, 27, 32, and 33 (a & b).

4.4: 1, 3, 5, 6, 9, 11, 13, 15, 16, 21, 27, and 28.

4.5: 1, 5, 8, 9, 11, 13, 14, 15, 17, 20, 25, 28, 31, 33, and 36.

4.6: 1, 3, 7, 10, 15, and 16.

4.7: 3, 5, 6, 9, 13, 17, 20, 37, 38, 41, 42, 47, and 48.

 

6.1: 15, 16, 19, 20

6.2: 3, 9, 12, 20

6.3: 5, 8, 31, 32

6.4: 1, 3, 5, 6, 7, 8

 

7.2: 2, 6, 7, 9, 12, 13, 17, 20, 21, 23, 24, 27, 29(a, c, e, g, and i), and 30.

7.3: 1, 3, 7, 10, 21, 22, 25, 33, and 34.

7.4: 1, 3, 7, 9, 10, 11, 13, 15, 19, 21, 24, 25, 28, and 30.

7.5: 1, 5, 8, 13, 17, 21, 22, 25, 26, 35, and 38.

 

8.1: 1, 4, 5, 6, 9, 13, 15, 16.

8.2: 1, 3, 6, 9, 11, 14, 16, 17, 19, 20, 21, 23, 25, 26, 29, 31, 32, 33

8.3: 3, 4, 5, 9, 11, 15, 18, 19, 21, 24, 27, 28, 31

8.4: 1, 3, 5, 6, 9, 12, 15, 18, 23, 26

 

Solutions

Homework: 1.1, 1.2, and 1.4,

2.2, 2.3, 2.4, 2.5, and 2.6,

3.2, 3.3, 3.4, 3.6 (an Excel spreadsheet), and 3.7,

4.2, 4.3, 4.4, 4.5, 4.6, and 4.7,

6.1, 6.2, 6.3, and 6.4,

7.2, 7.3, 7.4, and 7.5,

8.1, 8.2, 8.3, and 8.4.

 

Exams: One, Two, Three, Four, Five