Notes on using Salas-Hille in a calc class:
NB: since we have a syllabus to follow, any deviation from the book
has to be dealt with
(i.e., if someone joins the class 2nd/3rd quarter, I need to get them
up to speed on stuff I covered 1st quarter beyond syllabus:
  give them a problem set/review sheet, for their own practice)

Thus, largely follow the plan, but rearrange stuff to your pleasure.

- exp/log/trig
  they do these pretty late; I prefer to introduce them
  (briefly) right away, so we have more functions.
  
- L'Hopital's rule
  this should really be done 1st quarter

- improper integrals
  should be done 2nd quarter
