Here is the second installment on lisp. In this, I discuss how functions can be passed as arguments to other functions
and how this leads to a very flexible abstraction. I also discuss the implication of this for the A* search code I gave.
The avi file is a little longer than 1gb, and so I had to split it into two parts. You can put them together by
using hjsplit (free at http://www.download.com/HJ-Split/3000-2248_4-10550268.html )
the links expire on Feb 24th.