Math 302 Differential Equations with Applications

Course Information 
We will basically cover the material detailed in the official 110.302 Differential Equations Course Syllabus. However, the lectures will not follow the text verbatim and I strongly recommend to take notes in class.There will be two midterm exams and a final exam:
Exams are closed book, closed notes. There will be no makeup exams. For excused absences, the grade for a missed exam will be calculated based on your performance on all remaining exams. If you miss an exam, you will have to be cleared by the Director of Undergraduate Studies Richard Brown to be excused from the exam, a process that will include documentation and a valid excuse. Unexcused absences count as 0.The course grade will be determined as follows:
Homework based on the week's lectures will be posted as official in the course schedule below, usually sometime on Friday. That assignment will be due at the beginning of class the next Friday. Hand your homework set into the bin corresponding to your section. You will receive your graded homework back from your section teaching assistant the following week. No late homework will be accepted. If you absolutely cannot make it to class, arrange for someone else to hand it in for you. However, you may miss up to two homework assignments without grade penalty, as the lowest two homework scores will be dropped from the final grade calculation.
You are responsible for lecture notes, any course material handed out, and attendance in class. I will not formally record your attendance, but you are encouraged to come to lectures. By attending lectures you will get a sense of what I consider important and that should help you know what to focus on when you study for the exams.
Besides attending the lectures and the recitation sections I encourage you to use the following opportunities for additional academic support:
The strength of the university depends on academic and personal integrity. In this course, you must be honest and truthful. Cheating is wrong. Cheating hurts our community by undermining academic integrity, creating mistrust, and fostering unfair competition. The university will punish cheaters 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 when a cheater applies.
On the following webpage you can find several Java applets that are helpful in understanding the behavior of solutions to ordinary differential equations (ODEs): Java Applets for ODEs (JOde). (Your browser must support Java for the applets to work) You may also want to check out the MIT Mathlets and you may want to use Wolfram Alpha to plot slope fields of ODEs (enter "slope field"). 
Sections 
Section # 
Time 
Room 
TA 
Office hours 

1 
T 13:3014:20 
Maryland 104 
Caroline van Blargan 
cvanbla1@jhu.edu 
Th 13:0015:00 
2 
T 15:0015:50 
Hodson 210 
Caroline van Blargan 
cvanbla1@jhu.edu 
Th 13:0015:00 
3 
Th 15:0015:50 
Shaffer 300 
Emily Stoll 
estoll2@jhu.edu 
W 15:0017:00 
4 
Th 16:3017:20 
Shaffer 303 
Emily Stoll 
estoll2@jhu.edu 
W 15:0017:00 
5 
Th 15:0015:50 
Hodson 203 
Junghyun Min 
jmin10@jhu.edu 
W 17:0019:00 
6 
T 15:0015:50 
Maryland 217 
Cuiqing Li 
cli92@jhu.edu 
F 11:0012:00 
7 
Th 13:3014:20 
Maryland 104 
Junghyun Min 
jmin10@jhu.edu 
W 17:0019:00 
8 
Th 15:0015:50 
Maryland 104 
Hanveen Koh 
hkoh5@jhu.edu 
W 11:0012:00 
9 
T 16:3017:20 
Hodson 301 
Chris Chia 
cchia4@jhu.edu 
M 16:0017:00 
Course Schedule 
Here is a tentative schedule for the course. It will be updated as we go with lecture notes and homework assignments. The lecture notes are only meant to supplement your own note taking in class and your reading of the textbook. Solutions to selected homework problems will be provided. I strongly recommend to you to read the relevant sections of the textbook before and/or after each lecture.

Week 
Topics and Sections 
Homework 
DUE 
Aug 31, 
Introduction 
Please become familiar with the organization of this course by carefully reading the syllabus on this webpage. 
Sep 8 
Sep 6, 8 
§2.1 Linear Equations and Integrating Factors 
Do the following exercises: 
Sep 15 
Sep 11, 13, 15 
§2.4 Linear vs. Nonlinear Equations 
Do the following exercises: 
Sep 22 
Sep 18, 20, 22 
§2.6 Exact Equations and Integrating Factors 
Do the following exercises: 
Sep 29 
Sep 25, 27, 29 
§3.2 The Wronskian 

Oct 2, 4, 6 
§3.5 Nonhomogeneous Equations 

Oct 9, 11, 13 
1st midterm on Monday in class 

Oct 16, 18 
§7.1 Introduction to Systems 

Oct 23, 25, 27 
§7.4 First Order Linear Systems 

Oct 30, 
§7.7 Fundamental Matrices 

Nov 6, 8, 10 
§9.2 Autonomous Systems and Stability 

Nov 13, 15, 17 
2nd midterm on Monday in class 

Nov 2026 
Thanksgiving vacation 
No homework 

Nov 27, 29 
§8.1 The Euler or Tangent Line Method 

Dec 4, 6, 8 
§6.1 Definition of the Laplace Transform 
Final exam:Wednesday, December 13, 9:0012:00 
Announcements 
Thu, Aug 31: Welcome to Math302 Differential Equations! I wish you all the best for this fall term. 