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Re: What's so cool about Scheme?
Date: Tue, 3 Jun 2003 10:27:02 -0500
From: Matt Hellige <firstname.lastname@example.org>
How did the label "functional" get stuck to Lisp/Scheme anyway?
It may have to do with the fact that many of the
"simple" functions on lists that are used as early
teaching examples are in fact purely functional:
(define (append x y)
(if (null? x) y (cons (car x) (append (cdr x) y))))
(define (member? x y)
(and (not (null? y))
(or (equal? x (car y))
(member? x (cdr y)))))
(define map (f x)
(if (null? x) x (cons (f (car x)) (map f (cdr x)))))
and so on. And by such examples one may be led into the
functional style of programming, which is *possible*
within Lisp/Scheme, though not *required*.