Chapter 9
 briefly talk about:
 - reflectors (parabolic, elliptic, hyperbolic)
 - range finding using hyperbolae (and GPS satellites!)
 - cycloid (assign problems from the project)
 (optional): surface area

-------
etc:
  linear algebra, group theory, some baby lie groups

for my own sake, write these up (but don't inflict them on these students)
 function spaces, limits of functions:
 pointwise, uniform
  (give sick examples, e.g.,
	 the function that's f_n = 1/n on [n,2n] goes to zero uniformly but has integral 1,
	 so if your domain in unbounded, life can suck.
	 ...also f_n = n on [1/n,2/n] goes to zero pointwise on a compact interval,
	   has integral 1.
	 otoh, if function is on a -compact- interval and goes uniformly, then life is okay?
	
	(note about C^1, C^k, C^infty topologies)