CSC151.02 2003F, Class 28: Pairs and Pair Structures

Admin:
* Note that you should work from outline 27, even though today is class 28.
* Read *all* the problem.
* For Thursday, reread the section on "Pair Recursion".
* At Reese's request: No Class Friday.  

Overview:
* What is memory:
* How Scheme might keep track of things.
* Pairs: The building blocks of lists.
* Why pay attention to this stuff.
* Lab.

Note: Stuff was drawn on the real whiteboard

Stupid Scheme Mythology: Why they're called car, and cdr, and cons

Reflection:
* Congratulations!  You are my first class in which everyone got problem 1 correct.