From: "Lennart Borgman (gmail)" <lennart.borgman@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: jay.p.belanger@gmail.com, bug-gnu-emacs@gnu.org,
Francis Litterio <flitterio@gmail.com>,
emacs-devel@gnu.org
Subject: Re: In CVS Emacs, calc-eval gives multiplication higher precidence than division
Date: Sun, 07 Sep 2008 23:19:56 +0200 [thread overview]
Message-ID: <48C4457C.4020506@gmail.com> (raw)
In-Reply-To: <jwvtzcry850.fsf-monnier+emacs@gnu.org>
Stefan Monnier wrote:
>> According to Wikipedia:
>> An expression like 1/2x is interpreted as 1/(2x) by TI-82, but as
>> (1/2)x by TI-83. While the first interpretation may be expected by
>> some users, only the latter is in agreement with the standard rules
>> stated above.
>
> That could be due to a higher precedence, but could also be due to an
> equal precedence together with left-associativity. Given that (a*b)/c
> is often mathematically equal to a*(b/c), the difference is generally
> hard to see, unless rounding comes into play.
But that is a bit different from (a/b)*c, a/(b*c) ... - otherwise I agree.
prev parent reply other threads:[~2008-09-07 21:19 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-07 16:06 In CVS Emacs, calc-eval gives multiplication higher precidence than division Francis Litterio
2008-09-07 16:37 ` Jay Belanger
2008-09-07 18:15 ` Francis Litterio
2008-09-07 19:46 ` Stefan Monnier
2008-09-07 20:19 ` bug#920: " Lennart Borgman (gmail)
2008-09-07 20:32 ` Randal L. Schwartz
2008-09-08 10:30 ` Carsten Dominik
2008-09-08 11:01 ` Lennart Borgman
2008-09-08 20:33 ` Carsten Dominik
2008-09-08 20:39 ` Lennart Borgman (gmail)
2008-09-08 20:43 ` Randal L. Schwartz
2008-09-08 20:53 ` bug#914: " Lennart Borgman (gmail)
2008-09-08 21:42 ` Stefan Monnier
2008-09-09 8:11 ` Richard M. Stallman
2008-09-09 13:26 ` Stefan Monnier
2008-09-08 13:01 ` Stefan Monnier
2008-09-07 20:35 ` Jay Belanger
2008-09-07 21:15 ` Stefan Monnier
2008-09-07 21:19 ` Lennart Borgman (gmail) [this message]
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