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From: Francis Litterio <flitterio@gmail.com>
To: emacs-devel@gnu.org
Cc: bug-gnu-emacs@gnu.org
Subject: Re: In CVS Emacs, calc-eval gives multiplication higher precidence than division
Date: Sun, 07 Sep 2008 14:15:35 -0400	[thread overview]
Message-ID: <i5i68wu3vmys.fsf@gmail.com> (raw)
In-Reply-To: 878wu3j4k2.fsf@gmail.com

Jay Belanger wrote:

> Francis Litterio writes:
> ...
>> In CVS Emacs, function calc-eval (in lisp/calc/calc.el) gives
>> multiplication higher precidence than division.
>
> That's not a bug.  While many systems give division a higher precendence
> than multiplication, that isn't a universal rule.  Calc has always given
> multiplication a higher precendence, and something like
> 1 / 2 * 1000
> can be viewed as shorthand for
>    1
> --------
> 2 * 1000
> Some people don't like this, some people do, but this choice is
> established Calc behavior and is highlighted in the manual.  To divide
> first, it's probably better style regardless to put in the parentheses:
> (1 / 2) * 1000

Thanks, Jay.

My apologies for rehashing old news.  I just discovered the discussion
thread at:

	http://thread.gmane.org/gmane.emacs.devel/69436
--
Fran





  reply	other threads:[~2008-09-07 18:15 UTC|newest]

Thread overview: 46+ 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 [this message]
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
2008-09-07 20:34       ` Lennart Borgman (gmail)
2008-09-07 20:38         ` Randal L. Schwartz
2008-09-07 20:42           ` Lennart Borgman (gmail)
2008-09-07 20:50             ` Randal L. Schwartz
2008-09-07 21:07               ` Lennart Borgman (gmail)
2008-09-08  6:39                 ` Ulrich Mueller
2008-09-08  7:07                   ` Lennart Borgman (gmail)
2008-09-07 21:10               ` Stefan Monnier
2008-09-07 23:30                 ` Jay Belanger
2008-09-08  0:50               ` Jason Rumney
2008-09-08  1:13             ` Randal L. Schwartz
2008-09-08  3:47               ` Stefan Monnier
2008-09-08  8:48                 ` Miles Bader
2008-09-08 12:59                   ` Stefan Monnier
2008-09-08 13:29                   ` martin rudalics
2008-09-08  7:26               ` Lennart Borgman (gmail)
2008-09-07 21:10           ` Stefan Monnier
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                 ` Lennart Borgman (gmail)
2008-09-08 22:59                   ` bug#914: " Jay Belanger
2008-09-08 23:44                     ` Lennart Borgman (gmail)
2008-09-09 13:28                     ` Stefan Monnier
2008-09-09 14:36                       ` Francis Litterio
2008-09-09 16:26                         ` Ulrich Mueller
2008-09-09 16:41                           ` Lennart Borgman (gmail)
2008-09-30  4:10                         ` Leo
2008-09-08 20:53                 ` 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
2008-09-09 17:03                     ` Lennart Borgman (gmail)
2008-09-09 17:19                       ` 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)

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