Math 221 Differential Equations, Spring 2005
Section:
Time:
Office hours:
Syllabus:
|
001
MWF 8:30–9:20 AM, AvH 119
MW 9:30–10:30 AM, R 10:00–11:00 AM, or by
appointment, AvH 243
Updated March, 23
|
Grades
There will be weekly homework assignments, one project,
three midterm exams, and one comprehensive final
exam. Grades are posted at My.UNL (Blackboard); they
all count towards the final grade with weights as follows:
Homework:
Project:
Midterms:
Final:
|
22,5%
7,5%
15% each
25%
|
Final grades will be assigned according to a curve based
on the following percentages:
| A+ |
97-100% | A | 93-96.9% |
A- | 90-92.9% |
| B+ |
87-89.9% | B | 83-86.9% |
B- | 80-82.9% |
| C+ |
77-79.9% | C | 73-76.9% |
C- | 70-72.9% |
| D+ |
67-69.9% | D | 63-66.9% |
D- | 60-62.9% |
| F |
0-59.9% |
Homework
| Week |
Assigned problems |
Due date |
Graded |
Supplementary problems |
| April, 18 – 22 | Any five of the eight
problems on
the
mock final exam | April, 26
| All |
7.4: 11, 17, 29
7.5: 1, 6, 12, 25
7.6: 1, 5 |
| April, 11 – 15 | 7.2: 1, 7, 11, 18
7.3: 3, 6, 12
7.4: 4 | April, 22 |
7.2: 1, 11
7.3: 6
7.4: 4 | 7.2:
28, 35
7.3: 1, 27
7.4: 3, 8, 30 |
| April, 4 – 8 | 7.1: 2, 9, 16, 20, 23, 36 | April, 15 | 7.1: 9, 16, 23
| 7.1: 1, 8, 10, 26 |
| March, 28 – April, 1 | 5.6: 6, 15
6.1: 3, 13*, 14*, 17*
| April, 11 | 5.6: 15
6.1: 3, 13 | 5.6: 8 |
| |
(*) Solve the system and determine whether (0,0) is
unstable, stable, or asymptotically stable. You may use
the graphs from the back of the book, p. 547. |
| March, 21 – 25 | 5.2: 11, 31
5.4: 3, 7
5.6: 1,
3 | April, 1 | 5.2: 11
5.4: 7
5.6: 1 | 5.2: 9,
23
5.4: 1, 10 |
March, 14 – 18
(spring break) | — | —
| — |
— |
| March, 7–11 | 3.5: 47, 51
5.1: 1, 4, 15, 22
5.2: 3, 26 | March, 28 | 3.5: 47
5.1: 15, 22
5.2: 26 | 3.5: 57
5.1: 1, 6, 31 |
February, 28
– March, 4 | — | — | — | — |
| February, 21–25 | 3.3: 14, 20, 24, 29, 35
3.5: 2, 5,
17, 24, 33 | March, 11 | 3.3: 14, 29, 35
3.5: 2, 24 |
3.3: 38, 49
3.5: 12, 15, 41 |
| February, 14–18 |
3.1: 37, 39
3.2: 2, 21, 25, 26 |
February, 25 |
3.1: 37
3.2: 2, 21 |
3.1: 30, 31
3.2: 27, 28 |
| February, 7–11 |
3.1: 2, 4, 20, 22
1.3.14; 1.4.23; 1.5.12 |
February, 18 |
3.1: 4, 22
1.5.12 |
3.1: 18, 26, 27 |
January, 31
– February, 4 |
2.3: 1, 2, 4, 11, 25
2.4: 1, 13,
29 |
February, 11 |
2.3: 1, 4, 25
2.4: 1 |
2.3: 13, 14, 15, 16
2.4: 25, 31 |
| January, 24–28 |
2.1: 5, 11, 18, 24
2.2: 1, 5,
19, 21 |
February, 4 |
2.1: 5, 24
2.2: 5, 19 |
2.1: 15, 16, 17, 32
2.2: 21, 22 |
| January, 17–21 |
1.4: 11, 25, 29, 39, 56
1.5: 4, 18,
33, 41 |
January, 28 |
1.4: 25, 39
1.5: 4, 41 |
1.4: 8, 49, 69
1.5: 20, 33 |
| January, 10–14 |
1.1: 7, 25, 35, 40
1.2: 6, 15,
19, 27, 40
1.3: 6, 11, 26, 27 |
January, 21 |
1.1: 25, 40
1.2: 6, 27
1.3:
11, 26 |
1.1: 34, 45
1.2: 11, 38, 41
1.3: 5, 30 |
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