Differential Equation with Applications  110.302
April
29, 2011:
The final exam of this course will be
held on May 11th, Wednesday, from 9 AM to 12 Noon.
Sections 1, 2 and 3 will have the test in Mudd 26. Sections 4, 5, 6 and 7 will have the test in Bloomberg 272. Please notice that section 4 will have the test in Bloomberg 272. Please also notice that for those who have conflict exam schedules, the above arrangement does not apply. If you have conflict exams but have not received any email/notice from the math department about reschedules, please let me know ASAP. 
Text book: W. Boyce
and R. DiPrima, Elementary Differential Equations, 9th edition.
Prerequisite: A standard understanding of calculus.
Lecture place/time:
Class 1 (sections 14): Maryland Hall
110, from 12 to 12:50;
Class 2 (sections 57): Krieger Hall
205, from 1:30 to 2:20.
section 1 
section 2 
section 3 
section 4 
TA: Xin Yu Place: Hodson 203 Time: T, 1:302:20 
TA: Duncan
Sinclair Place: Ames 219 Time: T, 33:50 
TA: Tim Tran Place: Maryland 217 Time: Th, 33:50 
TA: Junyan
Zhu Place: Shriver 104 Time: Th 4:305:20 
section 5 
section 6 
section 7 
TA: Duncan
Sinclair Place: Maryland 104 Time: T, 4:305:20 
TA: Tim Tran Place: Shaffer 202 Time: Th, 1:302:20 
TA: Junyan
Zhu Place: Maryland 104 Time: Th, 33:50 
No.  Date 
Topics  Homework assignments  HW due dates  Comments 
1 
01/31 
1.11.3 2.1 2.2 
P8: 22; P2425: 1, 5, 7, 9, 15, 17. P3940:13, 17, 30; P47: 1, 3. P4749(Just solve eq'ns): 7, 8, 31, 36; P77: 31. 
02/11  
2 
02/07 
2.4 2.5 2.6 
P7576: 1, 3,
22. P8889: 3(ignore the phase line), 16, 17. P99101: 3, 12, 21, 28. 
02/18  
3 
02/14 
3.1 3.2 3.3 
P144145: 1, 10 15, 17, 27, 28. P155156: 6, 8, 13, 21, 33. P163: 7, 10, 20; P171: 12. 
02/25  
4 
02/21 
3.43.5 3.53.6 4.14.2 
P173174:
27, 41; P183: 1, 13. P189: 1, 2, 13, 16. P232: 11, 20. 
03/04  
5 
02/28 
Midterm 1 6.1 6.2 
N/A P311312: 5(c), 13, 26, 20, 27. P320321: 8, 11, 17, 21, 24. 
03/11  
6 
03/07 
6.36.4 6.5 6.6 
P328330:
1, 3, 7, 10, 19, 23. 31. Just solve eqn's: P336: 1, 3, 5; P343: 4, 6. P350351: 2, 3, 7, 8, 11, 14, 16. 
03/18  
7 
03/14 
7.1, 7.4 7.2, 7.3 7.5 
P359360: 1, 5, 8, 15 P371372: 2, 22; P384: 16, 21. P398340: 1(just part (a)), 9, 15, 24. 
04/01  
8 
03/21 
No
class, Spring break. 
N/A 

9 
03/28 03/30 04/01 
7.6 7.77.8 7.9 
P409410: 3, 10; P429:
5, 15(forget the "compare" part) P420421: 1, 3, 11, 15 P439441: 1, 7, 14. 
04/08  
10 
04/04 
Midterm2 Midterm2 9.1 
P4945: (a)(b) and sketch trajectories for: 1,3,5,9,11 
04/22  
11 
04/11 
9.1 9.29.3 9.29.3 
P4945: (a)(b) and
sketch trajectories for: 2,4,6,8,10 P506: 1, 4; P516517: 1, 3, 19, 20. 
04/22  
12 
04/18 
9.49.5 9.7 9.75.1 
P530:
(b,c,d) of 1 and 3; P540: (b,c,d) of 2 and 4. N/A P563: 1, 8, 9. 
04/29  
13 
04/25 
5.15.3 5.45.6 2.3 
P259: 1, 3, 7. P265: 2, 3; P277: 41. N/A 
Not2B collected. 

14 
05/02 
2.7 TBD 
N/A 
05/06: last day of classes 

15 

Final Exam 

Due dates of
homeworks of each week can be found from the
Schedule
and
assignments table.
Usually, but not always, the homework assigned in a week is due
on the next Friday. The lecturer will collect the homework
at the beginning of the class on the due date. The TAs do not accept
any homework. No late homework will be accepted. The score of a missing
homework will be recorded as zero.
If
you cannot turn in
the homework
on a particular due date, make arrangements to bring it to
the lecturer before
the due date.
There will be
two midterm exams and one
final exam. The midterm exams are in class exams and the schedules can
be found above. Information about the final exam was announced above.
No
makeup exam will be allowed. All exams have to be
taken. If one exam is skipped without a valid excuse, the corresponding
score would be
recorded as
zero. The score for a missing
exam with valid excuse will be the weighted average of
subsequent exams. A valid excuse could be the
permission from
the Director of
Undergraduate Studies, or a doctor's note. If a special arrangement
of an early exam is needed,
please inform your instructor in writing at least two weeks
in advance so that there is enough time to arrange.
No books, no calculators, no
notes, no electronic devices, no collaborations will be allowed during
the midterms or the final exam. I recommend, but do not require, avoid
using pencils in an exam.
The
university will punish cheating with
failure on an assignment, failure in a course, permanent transcript
notation, suspension, and/or expulsion. Offenses may be reported to
medical, law or other
professional or graduate schools. Violations can include cheating on
exams, plagiarism, reuse of assignments without permission,
improper use of the Internet and electronic devices, unauthorized
collaboration, alteration of graded assignments, forgery
and falsification, lying, facilitating academic dishonesty, and unfair
competition. Ignorance of these rules is not an excuse. For
more information see http://ethics.jhu.edu.
Grade
The final
grade will be calculated as the weighted sum of the scores
from the homeworks,
2
midterm exams and the final exam. The relative weights are: Homework
20%, Midterms 20% for each, Final exam 40%.