Held: Wednesday, 22 January 2003
Summary: Today we consider many of the core types in Scheme, particularly symbols, lists, and numbers.
> 'a a > a reference to undefined identifier: a > (quote a) a
(cons thing-for-the-front rest-of-the-list)
> (cons 'a null) (a) > (cons 'b (cons 'a null)) (b a)
> (list 'a 'b 'c) (a b c)
car: get the initial element of the list.
cdr: get all but the initial element of the list.
list-ref: get the ith element of the list.
Thursday, 15 January 2003 [Samuel A. Rebelsky]
Wednesday, 22 January 2003 [Samuel A. Rebelsky]
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