Lecture 3

Library file function definitions:

none

Problems:

setf replaced with setq

for:

(defun sum-average (x y)
        (setq z (+ x y))
        (/ z 2))

(defun sum-avg-caller (sum x y)
        (sum-average x y) sum)

(setq sum '(a b c))

(sum-avg-caller 0 55 65)

sum

gives: (a b c), not 120 as in the examples

Reference to defun

*sum* ; usually put *'s around names of globals

setq means that first arg doesn't have to be quote compared to "set"
Reference to set