Math 22B - Differential Equations

Derek Wise

Here's the syllabus.

Final Exam and Review Sessions

The final exam is on Wednesday, 10 June, 6:00 PM-8:00 PM, in the usual classroom. Review sessions will be held by the TAs at the following times and locations:
  • Fri, 6/5/2009   5:10 PM-6:30 PM    6 OLSON    TA: Josh Clement
  • Mon 6/8/09   1:00 PM-2:30PM    206 OLSON   TA: Stephen Ng
  • Mon, 6/8/09   3:30 PM-5:30 PM 2 WELLMAN    TA: Josh OYoung

    I will try to be in my office from about 12:30 to 2:00 on Tuesday, if you want to drop by and ask questions.

    Homework assignments

  • HW1 (Due Friday 3 April)   1.1 #22   1.2 #8   1.3 #7
  • HW2 (Due Friday 10 April)   1.1 #2,4 (draw by hand)   2.1 #14,15   2.2 #4,7   2.3 #12,13   2.4 #25
  • HW3 (Due Monday 20 April)   2.3 #5a,23abc    2.4 #3,4,27ab,28    2.5 #10,11,25ab
  • HW4 (Due Monday 27 April)   download the pdf
  • HW5 (Due Monday 11 May)    3.8 #6,17,20,24    3.2 #4,6,13,14    3.3 #3,4    3.6 #1,2,17
         (For 3.8 #17, note that pounds (lb) are not a unit of mass but of weight; to convert weight to mass, divide by 32 feet/second2.)
  • HW6 (Due Monday 18 May)    2.1 #39, 41 (use variation of parameters, either as explained in class or as in problem 38)    3.6 #10    3.7 \#2, 5, 13    3.9 #9   
  • HW7 (New due date: Wednesday 26 May)   download the pdf
  • HW8 (Due Wednesday 3 June)   download the pdf

    Solutions and other course materials

  • Partial solutions to HW7: problems 1,2,6 and problem 8 (Note: on problem 6 there is a small error near the end: I wrote "3" as the last entry of the first vector in the solution, where it should be "-3".)
  • A summary of first order linear systems.
  • Solutions to HW8
  • Solutions to the midterm

    Waves

    Using a driving force with frequency very close to the natural frequency of a system can have some big effects, like...

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