Differential Equation with Applications ----- 110.302

 
Announcements Basic information Schedule & assignment
Policy and rules Course material  

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 1-4): Maryland Hall 110, from 12 to 12:50;
      Class 2 (sections 5-7): Krieger Hall 205, from 1:30 to 2:20. 

Instructor: Chenghao Chu. Krieger 219. cchu(at)math(dot)jhu(dot)edu
Office Hours: 2:30PM--3:30PM on Mondays, or by appointment.
 
TA's Discussion place/time: Please remember your section number.
 
Class 1
section 1
section 2
section 3
section 4
TA: Xin Yu
Place: Hodson 203
Time:  T, 1:30-2:20
TA: Duncan Sinclair
Place: Ames 219
Time:  T, 3-3:50
TA: Tim Tran
Place: Maryland 217
Time:  Th, 3-3:50
TA: Junyan Zhu
Place: Shriver 104
Time:  Th 4:30-5:20

Class 2
section 5
section 6
section 7
TA: Duncan Sinclair
Place: Maryland 104
Time:  T, 4:30-5:20
TA: Tim Tran
Place: Shaffer 202
Time:  Th, 1:30-2:20
TA: Junyan Zhu
Place: Maryland 104
Time:  Th, 3-3:50

 

Update with this table regularly. This is only a tentative schedule and modifications are expected.  However, the schedule for exams will not change.

No. Date
Topics Homework assignments HW due dates Comments

1

01/31
02/02
02/04

1.1-1.3
2.1
2.2
P8: 22; P24-25: 1, 5, 7, 9, 15, 17.
P39-40:13, 17, 30; P47: 1, 3.
P47-49(Just solve eq'ns): 7, 8, 31, 36; P77: 31.
02/11

2

02/07
02/09
02/11

2.4
2.5
2.6
P75-76: 1, 3, 22.
P88-89: 3(ignore the phase line), 16, 17.
P99-101: 3, 12, 21, 28.
02/18

3

02/14
02/16
02/18

3.1
3.2
3.3
P144-145: 1, 10 15, 17,  27,  28.
P155-156: 6,  8,  13,  21,  33.
P163: 7, 10, 20;  P171: 12.
02/25

4

02/21
02/
23
02/25

3.4-3.5
3.5-3.6
4.1-4.2
P173-174: 27, 41; P183: 1, 13.
P189: 1, 2, 13, 16.
P232: 11, 20.
03/04

5

02/28
03/02
03/04

Midterm 1
6.1
6.2
N/A
P311-312: 5(c),  13,  26,  20, 27.
P320-321: 8, 11, 17,  21,  24.
03/11

6

03/07
03/09
03/11

6.3-6.4
6.5
6.6
P328-330: 1, 3, 7, 10, 19, 23.  31.
Just solve eqn's: P336: 1, 3, 5; P343: 4, 6.
P350-351: 2, 3, 7, 8, 11, 14, 16.
03/18

7

03/14
03/16
03/18

7.1, 7.4
7.2, 7.3
7.5
P359-360: 1, 5, 8,  15
P371-372: 2,   22;  P384:  16, 21.
P398-340: 1(just part (a)),  9, 15,  24.
04/01

8

03/21
03/23
03/25


No class, Spring break.
N/A

9

03/28
03/30
04/01
7.6
7.7-7.8
7.9
P409-410: 3, 10;  P429:  5, 15(forget the "compare" part)
P420-421: 1, 3,  11, 15
P439-441: 1,  7,  14.
04/08

10

04/04
04/06
04/08

Midterm2
Midterm2
9.1


P494-5: (a)(b) and sketch trajectories for:  1,3,5,9,11
04/22

11

04/11
04/13
04/15

9.1
9.2-9.3
9.2-9.3
P494-5: (a)(b) and sketch trajectories for:  2,4,6,8,10
P506: 1, 4;
P516-517: 1, 3, 19, 20.
04/22

12

04/18
04/20
04/22

9.4-9.5
9.7
9.7-5.1
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
04/27
04/29

5.1-5.3
5.4-5.6
2.3
P259: 1, 3, 7.
P265: 2, 3; P277: 41.
N/A
Not2B collected.

14

05/02
05/04
05/06

2.7
TBD
N/A

05/06: last day of classes

15

 

Final Exam

 
 

 

 

Homework

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.
 

Exams

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 make-up 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.

JHU ethics statement

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.

Students with special needs

Students with documented disabilities or other special needs who require special arrangement must register with the Office of Academic Advising. After that, remind us of your needs at least 5 days prior to each exam; we will need to have received the confirmation from Academic Advising.
 

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%.