From: "Neil Jerram" <neiljerram@googlemail.com>
To: "Bill Schottstaedt" <bil@ccrma.stanford.edu>
Cc: bug-guile@gnu.org
Subject: Re: (gcd -2) -> -2
Date: Tue, 12 Aug 2008 14:56:44 +0100 [thread overview]
Message-ID: <49dd78620808120656t2e6a34d3k202e28e847302daf@mail.gmail.com> (raw)
In-Reply-To: <20080812112433.M84043@ccrma.Stanford.EDU>
2008/8/12 Bill Schottstaedt <bil@ccrma.stanford.edu>:
> gcd is supposed to ignore factors of -1.
According to? (I'm not suggesting that you're wrong. I'd just like
you to be precise about your references.)
> "<" is restricted to reals -- a complex arg should be an error.
Again, is that specified?
Mathematically, I can't help wondering about Lim(x + iy) as y -> 0.
Or, in Scheme terms, about inexact numbers. Does inexactness in
Scheme pertain only to the real dimension?
(Sorry that my knowledge of how these matters are specified is so poor!)
Neil
next prev parent reply other threads:[~2008-08-12 13:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-11 18:15 (gcd -2) -> -2 Bill Schottstaedt
2008-08-12 9:14 ` Neil Jerram
2008-08-12 11:27 ` Bill Schottstaedt
2008-08-12 13:56 ` Neil Jerram [this message]
2008-08-12 14:28 ` Mikael Djurfeldt
2008-09-17 20:53 ` [PATCH] " Neil Jerram
2008-09-18 8:05 ` Ludovic Courtès
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