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Math 285 - Section L1 - Introduction to Differential Equations

Meeting Times and Locations

TR 8:00-9:20 in 156 Henry Building

Contact Information and Office Hours

Instructor: Philipp Hieronymi
Email: - where x is the first letter of my first name and y is my surname
Office: 301 Altgeld Hall
Office Hours: Tuesday 9:30-11:30, Thursday 9:30-10:30 (and by appointment)
Tutoring service: MTWR 5:00-7:00pm, 336 MEB, MTWR 7:00-9:00pm, 341 Altgeld Hall


  • The graded second Midterm exams can be picked up during my office hours.
  • The final exam take place on Monday December 13th at 8am in 156 Henry Building.
  • There is a free tutoring service provided by the Math department. The schedule is as follows:
    5 to 7 p.m., Monday through Thursday, 336 MEB
    7 to 9 p.m., Monday through Thursday, 341 Altgeld Hall
  • The content of each lecture and the assigned homework can be found here.

Course Content

This course is based on the forth edition of the textbook Differential Equations with Boundary Value Problems: Computing and Modelling , Custom Edition for the University of Illinois, Pearson Custom Publishing, by Edwards and Penney. In particular, Chapters 1,2,3, 9 and 10 will be discussed. I will post what was and will be covered in each class on this webpage.

Course Policies


Homework will be assigned weekly, and collected at the beginning of the class each Thursday.
Each assignment will announced in class and on this webpage.
Late homework will not be accepted. If you are prevented from attending the Thursday lecture, you can submit your homework by putting it in my mailbox in 250 Altgeld Hall PRIOR to class meeting time.
Some weeks only a subset of the assigned problems might be graded. But in this case, I will not tell you in advanced which ones, and you are expected to submit solutions to all assigned problems.
Note that solutions must be written clearly and legibly: If we can not read, we can not grade it. Moreover, please write your name and your class section on every page you are handing in. If you are submit more than one sheet, please staple your homework.


There will be two midterm exams, given in class, and one final. The dates will be announced in advance during class and on this website.


The course grade will be the average of your homework, midterm exams, and final exam grades, weighted as follows:
20% Homework (the lowest homework score will be dropped)
20% each Midterm exam
40% final exam

Letter grades will be assigned according to: A-/A/A+ 90%, B-/B/B+ 80%, C-/C/C+ 70%, D/D+ 55%, F for less than 55%. This may be adjusted downwards if necessary.