From: Stefan Monnier <monnier@iro.umontreal.ca>
To: storm@cua.dk (Kim F. Storm)
Cc: "Randal L. Schwartz" <merlyn@stonehenge.com>, emacs-devel@gnu.org
Subject: Re: Calc: `*' binds more strongly than `/'
Date: Wed, 18 Apr 2007 15:27:12 -0400 [thread overview]
Message-ID: <jwvveftwkmw.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <m3y7kqqdfu.fsf@kfs-l.imdomain.dk> (Kim F. Storm's message of "Wed\, 18 Apr 2007 10\:44\:37 +0200")
>>> No, not normal for mathemeticians (and me on a bad day), who expect
>>> A*B/C*D to be the same as (A*B)/(C*D).
>> But for "A*B/C*D" I have a difficult time believing that some "standard math
>> notation" would parse it as you suggest. I.e. do you have any reference to
>> concrete data to back up this hypothesis?
> Yes, if you read it as
> A * B
> -----
> C * D
> I (and I believe the calc author) interpret it as above
I don't think so.
Theorem: the "/" is *not* a horizontal bar.
Proof:
What parse tree do you expect from A+B/C+D?
Is it the same as the one you expect from
A + B
-----
C + D
QED.
Stefan
next prev parent reply other threads:[~2007-04-18 19:27 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-14 11:57 Calc: `*' binds more strongly than `/' Christian Schlauer
2007-04-14 15:09 ` Jay Belanger
2007-04-15 19:21 ` Chong Yidong
2007-04-15 20:05 ` Stefan Monnier
2007-04-17 12:47 ` Randal L. Schwartz
2007-04-17 18:03 ` Stefan Monnier
2007-04-18 8:44 ` Kim F. Storm
2007-04-18 19:27 ` Stefan Monnier [this message]
2007-04-18 20:02 ` Davis Herring
2007-04-18 20:16 ` David Kastrup
2007-04-18 21:43 ` Davis Herring
2007-04-19 16:10 ` Stefan Monnier
2007-04-20 11:13 ` Randal L. Schwartz
2007-04-20 13:40 ` Stefan Monnier
2007-04-20 14:07 ` Jay Belanger
2007-04-22 1:31 ` Miles Bader
2007-04-22 10:19 ` Christian Schlauer
2007-04-22 10:23 ` Christian Schlauer
2007-04-22 19:47 ` Jay Belanger
2007-04-23 10:46 ` Jason Rumney
2007-04-23 13:03 ` Kim F. Storm
2007-04-23 15:54 ` Jay Belanger
2007-04-25 19:56 ` Christian Schlauer
2007-04-25 20:54 ` Jay Belanger
2007-04-26 3:35 ` Stefan Monnier
2007-04-26 4:06 ` Jay Belanger
2007-04-26 14:11 ` Stefan Monnier
2007-04-26 21:07 ` Christian Schlauer
2007-04-26 15:07 ` Davis Herring
2007-04-26 16:01 ` Stefan Monnier
2007-04-26 18:32 ` Luc Teirlinck
2007-04-26 21:29 ` Christian Schlauer
2007-04-26 23:17 ` Luc Teirlinck
2007-04-26 21:07 ` Christian Schlauer
2007-04-27 1:27 ` Jay Belanger
2007-04-26 17:47 ` Davis Herring
2007-06-20 15:23 ` Jay Belanger
2007-06-20 16:02 ` Kim F. Storm
2007-06-20 17:13 ` Jay Belanger
2007-06-20 17:29 ` Luc Teirlinck
2007-06-20 17:54 ` Jay Belanger
2007-06-20 19:14 ` Kim F. Storm
2007-06-20 19:28 ` Luc Teirlinck
2007-06-20 20:18 ` Jay Belanger
2007-04-17 18:54 ` Jay Belanger
2007-04-18 21:55 ` Christian Schlauer
2007-04-19 2:58 ` Daniel Brockman
2007-04-22 10:27 ` Christian Schlauer
2007-04-26 16:00 ` Daniel Brockman
2007-04-19 15:16 ` Drew Adams
2007-04-19 17:05 ` David Kastrup
2007-04-19 17:18 ` Drew Adams
2007-04-19 17:33 ` David Kastrup
2007-04-16 15:38 ` Richard Stallman
2007-04-17 12:47 ` Randal L. Schwartz
2007-04-18 21:29 ` Christian Schlauer
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