Math 353:

Ordinary and Partial Differential Equations


MTuWThF, 9:30am - 10:45am, Synchronous remote learning class, May 12 to June 24, 2021

Professor Hubert Bray, Mathematics Department, Duke University
Office Hours:  Tuesdays and Fridays, after class, or by appointment.

Course Information

Announcements

Click on the above link for course information. 
Your homework for the semester is listed below.

Homework will be due on Tuesdays and Fridays within 2 hours of the end of class, unless otherwise stated. 
Office hours are on Tuesdays and Fridays, after class, or by appointment.

Our TA will have office hours on Sundays from 10 - 11 a.m., Mondays 7 - 9 p.m., and Thursdays 7 - 9 p.m.

Class meets 5 days per week, from Wednesday, May 12 to Monday, June 21, except for May 31.

The two midterm exams are on Friday, May 28, and Friday, June 11.

The final exam is on Thursday, June 24, 2021, from 9am to noon.


Midterm 1 Practice Exams:

Practice Exam 1 

2014 Exam 1          2014 Exam 1 Solutions      


Midterm 2 Practice Exams:

Practice Exam 2          Another Practice Exam 2

2014 Exam 2          2014 Exam 2 Solutions      


Practice Final Exams:

Practice Final Exam

2014 Final Exam          2014 Final Exam Solutions


Homework

Homework #1 (due on Friday, May 14, 2021)

2.1:  1,11,13,20,28,29
2.2:  1,3,7,9,10,16,21,25,26
2.3:  8,9,10
2.4:  7,9,14,22


Homework #2
(due on Tuesday, May 18, 2021)

2.5:  3,22 
2.6:  1,5,7,11,12,18,21,22
2.7:  1,7,12
3.1:  6,7,11,16


Homework #3
(due on Friday, May 21, 2021)

3.3:  17,18,31,32, 35 
3.4:  1,5,7,11,12,18,21,25  
5.4:  1,3,9
3.5:  5,8,16,17


Homework #4
(due on Tuesday, May 25, 2021)
 
3.6:  3,5,8,15
6.1:  2,3,5,6,9,23,24
6.2:  3,8,9,13,14,16
6.3:  6,14,16,17,21,22


Homework #5
(due on Friday, May 28, 2021) MIDTERM 1 on this date in class.

Create a one page, front and back, review sheet which you may use during the midterm exam which we take on this date. Turn in your review sheet and the exam at the end of class.

1. The review sheet must be written by you in your handwriting.
2. The review sheet must be a physical (not digital) standard 8.5 x 11 inch piece of paper.
3. The review sheet must be created with a pen or pencil by you - no printouts or photocopies, even of your own handwriting.
4. While you should not just copy someone else's review sheet, after making most of your review sheet on your own, you are encouraged to compare your review sheet with other students for ideas about how to make your review sheet better. The goal is to maximize learning for everyone.
5. Make sure you include Table 6.2.1 in section 6.2 on your review sheet.

By writing small, you can get a great deal of information on your review sheet. The process of deciding what goes on your review sheet, as well as the process of actually transcribing it to your review sheet with a regular pen or pencil is very educational for you. These are the reasons for the above rules.

Make sure you take and study the practice exams at the top of this page to prepare for the exam as well. Good luck!


Homework #6
(due on Wednesday, June 2, 2021 - one day extension because of the Monday holiday)

6.4:  3,5,9,12
6.5:  1,4,9,13,14,17 
6.6:  1,6,9,11,13,14 


Homework #7
(due on Saturday, June 5, 2021 - another one day extension)

10.1:  2,3,7,14,17,20
10.2:  4,6,8,9,16,18,29
10.3:  2,4,13,14,15,17
10.4:  3,5,6,7,12,16,17,35,36  


Homework #8
(due on Tuesday, June 8, 2021)

10.5:  3,4,7,11,12,21,22 
10.6:  1,2,8,11,12
10.7:  4,8,9,10 
10.8:  2,8,10 


Homework #9
(due on Friday, June 11, 2021) MIDTERM 2 on this date in class.

Create a one page, front and back, review sheet which you may use during the midterm exam which we take on this date. Turn in your review sheet and the exam at the end of class.

1. The review sheet must be written by you in your handwriting.
2. The review sheet must be a physical (not digital) standard 8.5 x 11 inch piece of paper.
3. The review sheet must be created with a pen or pencil by you - no printouts or photocopies, even of your own handwriting.
4. While you should not just copy someone else's review sheet, after making most of your review sheet on your own, you are encouraged to compare your review sheet with other students for ideas about how to make your review sheet better. The goal is to maximize learning for everyone.
5. Make sure you include Table 6.2.1 in section 6.2 on your review sheet.

By writing small, you can get a great deal of information on your review sheet. The process of deciding what goes on your review sheet, as well as the process of actually transcribing it to your review sheet with a regular pen or pencil is very educational for you. These are the reasons for the above rules.

Make sure you take and study the practice exams at the top of this page to prepare for the exam as well. Good luck!


Homework #10 (due on Tuesday, June 15, 2021)

11.1:  2,3,4,5,8,10,19
11.2:  1,4,7,8,11,13,14,15
11.3:  3,5,7,9,11,12,13,20,21
 

Homework #11
(due on Friday, June 18, 2021)

5.1:  1,5,12,13,18,19,21
5.2:  2,10,15 
5.3:  3,8,11,15,22,23