GNU bug report logs - #10554
24.0.92; No units specified (dimensionless quantities in Emacs Calc)

Previous Next

Package: emacs;

Reported by: "Roland Winkler" <winkler <at> gnu.org>

Date: Thu, 19 Jan 2012 05:27:02 UTC

Severity: normal

Found in version 24.0.92

Done: Jay Belanger <jay.p.belanger <at> gmail.com>

Bug is archived. No further changes may be made.

Full log

Message #55 received at 10554 <at> debbugs.gnu.org (full text, mbox):

From: "Roland Winkler" <winkler <at> gnu.org>
To: jay.p.belanger <at> gmail.com
Cc: 10554 <at> debbugs.gnu.org
Subject: Re: bug#10554: 24.0.92;
	No units specified (dimensionless quantities in Emacs Calc)
Date: Sat, 21 Jan 2012 09:12:00 -0600

On Sat Jan 21 2012 Jay Belanger wrote:
> > So every plain, dimensionless number in Calc can be converted to
> > ones. "7" becomes "7 one",
> 
> There is no need for that.  "7" is fine.

But this implies that internally Calc must interpret "7" as if it
was "7 one". Only then can one convert "7" to other dimensionless
units such as the "e T nm^2 / hbar" that appeared in my original bug
report. 

Currently the latter unit conversion does require the superfluous
step that one tells Calc in one or the other way that "7" means "7 one".
I suggest that this superfluous step should not be required.

Roland
This bug report was last modified 13 years and 126 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.