12/05 
Here is a list of final exam study topics. The final exam is cumulative, so expect about half of it to be from the first
two sections of the class (i.e. the material from the two midterms).
You should be in good shape if you review those midterms and can do the
type of problems on them.

12/04 
Here are the solutions to the Laplace transform worksheet. The final exam will be on Tuesday, December 10, 2:30 – 4:20 pm
in our usual lecture room CHL 015. I will have office hours as usual on
Friday afternoon, and also Monday afternoon, 1:30 – 4:00.

11/27 
Here are lecture notes on the Laplace transform of
piecewise defined and delayed signals, and solving IVP's with such
terms as driving forces. You can ignore the "Advanced example" at the
end if you want; it is there for those who want to see an example of
the power of the Laplace transform for solving ODE's. Some of the
examples are long, but you should be able to understand at each step
how we go from line to the next, even if keeping track of the entire
example is a bit too much. On the exam, like the homework, I will focus
on doing single steps in the process, or maybe a simple problem start
to finish.

11/20 
Here is a link to a brief review of the partial fraction method. You can also find videos online at the Khan Academy. We will do plenty
of examples in the coming days that illustrate the problems that will
arise on the final exam.

11/17 
Here are solutions to the second midterm. The median
score was 45, or about 4 points higher than the first midterm. The
mean was 42, or about 3 points higher than the first midterm.
So the grade comments from the first midterm are still
about right, considering that we still have a final exam to go.

11/13 
Here are the practice quiz solutions. See you Friday! 
11/08 
Here is a study sheet for the second midterm.
The exam will be given in
our usual lecture room on Friday, November 15. 
10/20 
Here are solutions to the first midterm. The median
score was 41. This exam counts for just 25% of
your total score for the class, but if it were predictive of the rest of
the quarter then a 39 would equate to 3.0, a score of 50 to 4.0, and
a score of 28 to 2.0. In particular, I am concerned that students who
got below 27 points on this midterm may be at risk of not passing the
class, and should consider coming by office hours to talk about their
performance. 
10/11 
Your first midterm will be this Wednesday, October 16. Some general rules:

9/23 
Welcome to Math 307L! My name is Hart Smith and I will be your instructor for Math 307L this quarter. I hope you had a pleasant summer break and are eager for the school year to begin. Please check out the Main 307 Webpage for an approximate syllabus, information on webassign, and the Religious Accommodation policy. I will be using this webpage to post updates to the syllabus, practice problems, and useful links, so check it regularly! Differential equations (DE) are a highly applicable branch of mathematics. They are used in a variety of fields in science and engineering. This course studies ordinary differential equations, which concern functions of just one variable like in singlevariable calculus. This course relies heavily on integral calculus and I want all of you to be adequately prepared. Here are some practice problems and solutions: I highly suggest that you go over these techniques. Your first homework will be due on Friday, September 27 (2nd day of class), and covers these techniques and other review topics. You will be using these techniques throughout the quarter.If you have any questions, please email me at hfsmith (at) uw.edu . I will also have office hours this week (and every week of the class). See you in class on Wednesday,
September 25!
