Subject: Re: my notes from the Scheme workshop at ICFP98
From: rpw3@rigden.engr.sgi.com (Rob Warnock)
Date: 1998/11/19
Newsgroups: comp.lang.scheme
Message-ID: <730tha$bimem@fido.engr.sgi.com>
Ray Dillinger  <bear@sonic.net> wrote:
+---------------
| ... bearing in mind that 
| 
| (eq? (- 3.0 3.0) (+ 3.0 -3.0)(+ -3.0 3.0))==>#T
+---------------

Not to be *too* picky, but... ;-}  ;-}
This is not necessarily true [see R5RS]. E.g., in
SCM & SIOD it's true, but in MzScheme, Elk, & Gambit-C:

  > (eq? (- 3.0 3.0) (+ 3.0 -3.0))
  #f
  > 

Of course, in all of these:

  > (eqv? (- 3.0 3.0) (+ 3.0 -3.0))
  #t
  > 


-Rob

-----
Rob Warnock, 8L-855		rpw3@sgi.com
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