CSC151 2007S, Class 18: Recursion Basics

Admin:
* Assignment 8 is now available (and due Tuesday).
* We'll try something different today: 
  * We'll start with lab.  
  * I will go over the key ideas in Monday's class.
* But yes, there is a reading for Monday.  
  It's about a different kind of recursion, tail recursion.
* Extra Credit for going to the Science Poster Session on Saturday, and seeing 
  Amanda M's poster, or Emily's poster, or anyone else in the class's poster.

Overview:
* The idea of recursion.
* A sample recursive procedure: sum.
* Another exmaple: Filtering.