Open DrRacket, choose Language, click radio button "Use the language declared
in the source", type
#lang r6rs
(import (rnrs))
(define !
(lambda (x)
(if (= x 0)
1
(* x (! (- x 1))))))
and in the repl
> (! 10)
and you'll get the correct result.
On Aug 25, 2010, at 11:19 AM, philippe sismondi wrote:
> I am new to Racket and Scheme generally, having started learning Common Lisp
> about a year ago.
>
> I have a question which is probably answered somewhere in the Racket docs or
> in the archives of this mailing list, but it would be of great help to get a
> quick answer.
>
> I ordered the 4th edition of the Dybvig book "The Scheme Programming
> Language", and then set to work on the book using DrRacket. I discover that
> the language in Dybvig (r6rs) is not the same as Racket.
>
> Can I use Racket to learn the Scheme language as presented in Dybvig? How
> might I do this? That is, does the set of software that comes with Racket
> support that language?
>
> More specifically I want to have a REPL that handles Scheme as in Dybvig.
>
> Thanks for your patience with a noob question.
>
> Best,
>
> - Phil -
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