Petite Chez Scheme Version 8.4
Copyright (c) 1985-2011 Cadence Research Systems

> (+ 3 4 5 6)
18
> (define a '(3 4 5))
> a
(3 4 5)
> (define b (cons 2 a))
> b
(2 3 4 5)
> a
(3 4 5)
> (define c (cddr a))
> c
(5)
> (cdddr a)
()
> (cddddr a)
Exception in cddddr: incorrect list structure (3 4 5)
Type (debug) to enter the debugger.
> (cdddddr a)
Exception: variable cdddddr is not bound
Type (debug) to enter the debugger.
> /
#<procedure />
> (max 3 4 5 8 2)
8
> (load "C:/SVN/304/www/Live-in-class/day01-section03.ss")
> (letter-to-number 'B+)
3.0
> (letter-to-number 'C)
0
> (define / *)
> (/ 4 5)
20
>