Instructor:
Dr. Dashun Xu
Office: 273 Neckers Hall A Wing
Office Hours: MWF 12:502:50pm or by appointment, 8:50am9:20am
Email: dashunxu@siu.edu Phone: 4536512
Zoom
meeting room: 222 336
4190
Syllabus (Attachment
for more useful webpage and dates)
Last
Day to drop with Refund: 01/27;
Last Day to drop with no Refund (W grade): 04/02
Homework:
All
assignments will be collected every Friday in class and only a few
questions in each assignment will be graded. Late homework will not be
accepted. The followings are problems assigned last time. I will update
these problems after each class meeting. Please make sure to refresh the webpage
Date

Homework


Week 1



Week 2

1.3: 16, 8, 9;;
2.1: find the
general sol. to 1,3,5,7, 8
2.1: (find the
general solutions, i.e. part c ) 9,11, 13, 15, 17, 19;;

Due on Fri.
Please donot forget to staple your homework
sheets together.
This webpage is updated according to the lecture
pace in the afternoon (after 2pm) on MWF. That is, you can get
all HW due on each Fri till
Wed after class.

Week 3

2.1: 8, 20;
2..2:
1, 2, 5, 6, 7, 13(a,c),
2.2: find the
solution to 14, 22;
2.6: 2, 3, 4, 5,

HW due on Fri.

Week 4

2.6: 7, 8,
2.6: 9, 13, 14
(find the solution);
2.6: 18, 21; 22,
2.6: 25, 26, 27, 28, 30;

Practice exam 1 (for
you to review Chap 2)
HW due on Fri.

Week 5

2.4: 2, 5, 7,
2.4: 11, 28,
29, 30, 31
2.5: 3, 4, 7, 10

HW due on Fri.
Please use the 10^{th}
edition of the testbook to do the homework problems. Otherwise, be
marked wrong!

Week 6

3.1: 1, 3, 9, 13, 15, 20

Exam on Fri!!!
Due on Fri.
Collect Announcements
1, 2, 3 (separate from
HW)!!!

Week 7

3.2: 9, 13, Optional: 3, 5, 11, 26
3.3: 7, 11,
17, 20, 21 Optional 9, 12, 15, 19

Since some student complained
that there are too many homework problems, I moved some to optional.
I still strongly recommend you to do all if possible.
Due on Fri.

Week 8

3.4: 7, 9, 11, 13, 23, 27, 29,
Optional: 12, 25, 28, 30,
3.3: 21
3.5: 1, 5,
3.5:
21(a, donot solve), 22a,

Practice for Chap3

Week 9

3.5: 3, 7, 9,
3.5: 16, 17, 23a, 25a, 27a; Optional: 6, 8, 10, 18, 19
3.6: 5,
7, 13, 17,
optional: 3, 4, 14, 16, 18

Due on Fri.

Week 10

4.1: optional:
14, 15, 16
4.2: 11, 14, 22, 31, find
solution to IVP: 32; optional: 13, 16, 18, 19, 24, 35


Week 11

4.2: 17, find solution to IVP:
29
4.3: 2, 3, 6, 9,
4.3: 13, 15, 16, 17, Optional: 1, 10, 12, 14, 16, 18

Practice for Chap4
HW due on Fri.

Week 12

4.4: 2, 3, 9
10.1: 1, 3, 4
10.1: 14, 16, 18
Optional: 2, 5,

Homework due on
Fri.

Currently
Week 13

10.2: 13, 15
HW due also on Fri.

Second
Exam on Fri!!!
Covering
Chap3, 4, and 10.1.

Week 14

10.2: 14, 16
10.3: 1, 2, 3,
10.3: 7a,
9a, 11a

Due on Fri


10.4: 7, 8, 9, 15, 16, 24(a,b)
10.5: 1, 2, 5, 6,
Optional: 10.5: 7, 8 after watching the video for 10.5.


Week 15

Practice for the final:
Midterm exams and their practice exams, homework
problems for Chap10.2—10.5

Final exam: Thur. 8am, May 11

Study Hint:
Find at least one or
two other students from the class with whom you can regularly do
homework and prepare for exams. Your classmates are perhaps the least
used and arguably your best resource. An efficient and effective study
group will streamline homework and study time and greatly improve your
written and spoken communication. The best time to use your classmates
as study/homework partners is after you have made an honest effort
on your own to solve the problems using your own wits, knowledge,
and experience. When you encounter an unsolvable problem, don't give up
too soon on it. Being stumped is an opportunity for mathematical growth
and insight, even if you never solve the problem on your own. If you
seek help prematurely, you will never know if you could have solved a
tough problem without outside assistance.
