From: Kevin Rodgers <ihs_4664@yahoo.com>
Subject: Re: Strange division using mixed integers and floats
Date: Wed, 28 Apr 2004 09:59:22 -0600 [thread overview]
Message-ID: <408FD4DA.30708@yahoo.com> (raw)
In-Reply-To: jellkg8ak5.fsf@sykes.suse.de
Andreas Schwab wrote:
> David Kastrup <dak@gnu.org> writes:
>>Also (/ 5 4 2.3) would no longer be equivalent to (/ (/ 5 4) 2.3).
>
> I don't think it was ever documented as such. The Emacs Lisp manual
> only covers the case of all arguments being integers, but does not
> specifically say anything about mixed mode arguments, except that a
> floating point value is returned if any argument is floating. So
> always using floating point arithmetics in this case would fit the
> principle of least surprise.
The manual says:
| If there are additional arguments DIVISORS, then it divides DIVIDEND
| by each divisor in turn.
To me that means (/ 5 4 2.3) is equivalent to (/ (/ 5 4) 2.3).
--
Kevin Rodgers
next prev parent reply other threads:[~2004-04-28 15:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <yoijk702ye7i.fsf@frealaf.dd.chalmers.se>
2004-04-28 10:13 ` Strange division using mixed integers and floats Richard Stallman
2004-04-28 11:05 ` David Kastrup
2004-04-28 13:20 ` Lars Brinkhoff
2004-04-28 14:02 ` Andreas Schwab
2004-04-28 15:59 ` Kevin Rodgers [this message]
2004-04-29 13:31 ` Richard Stallman
2004-04-29 17:17 ` peta
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