Reading Assignment:
  Today (Wednesday) in class we covered 2.9, and very
     briefly touched on the uniqueness part on the 
     Theorem in 2.11.  Read the previous assignment, if
     you haven't done so already.
  Tomorrow (Thursday) in class we will begin chapter 3;
     to prepare read 3.1, look at the statements of 
     Theorems 3.2.1 & 3.2.4.

When reading pay attention to:
  Terminology for 2nd order equations:
    1) homogeneous and non-homogeneous (not the same
         thing as in 2.9!?)
    2) linear
    3) constant coeffecient
    4) fundamental solution
    4) Wronskian
  How do you know when you have found the general solution
    to a 2nd order linear, homogeneous equation?
  What is the "method of the characteristic polynomial"
    for 2nd order, constant coeffecient equations?

Problems:
  2.9 : 1,4,13 (do parts a) and b) only)
  2.10 : 1,3,15,21,36,37ac