From: "Roland Winkler" <winkler@gnu.org>
To: jay.p.belanger@gmail.com
Cc: 10554@debbugs.gnu.org
Subject: bug#10554: 24.0.92; No units specified (dimensionless quantities in Emacs Calc)
Date: Thu, 19 Jan 2012 16:33:31 -0600 [thread overview]
Message-ID: <20248.39483.716850.185512@gargle.gargle.HOWL> (raw)
In-Reply-To: <87bopz5pt8.fsf@gmail.com>
On Thu Jan 19 2012 Jay Belanger wrote:
>
> > In Calc type
> ...
> > Convert this to SI units with u c si RET
> > - That's perfect. We get a dimensionless number.
> ...
> > Now when we type again u c, Calc remembers what we did before.
> > So as a unit it offers "default 1".
>
> Calc should probably offer "si" as the default in this case.
Yes: If previously one explicitly used "si" as an arg to
calc-convert-units, then it would be reasonable if
calc-convert-units remembered this choice, independent of the actual
SI unit that calc-convert-units obtained at the end of the previous
calculation.
> I'll also change it so that Calc can offer unit systems and composite
> units as default units, but that should probably wait until after 24.1
> comes out.
Agreed. This is nothing urgent.
From a different perspective, I'd say that "dimensionless" is as
valid a unit as "kg" or "hbar / c". In that sense I'd say that there
should be a possibility to pass this unit "dimensionless" as an arg
to calc-convert-units, similar to any other unit that this function
should use for its final result. I'd say that "1" appears to be a
natural choice in order to express the fact that Calc should obtain
a dimensionless number.
Or is there some other recommended way to do this that I have
overlooked?
Roland
next prev parent reply other threads:[~2012-01-19 22:33 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-19 5:24 bug#10554: 24.0.92; No units specified (dimensionless quantities in Emacs Calc) Roland Winkler
2012-01-19 21:45 ` Jay Belanger
2012-01-19 22:33 ` Roland Winkler [this message]
2012-01-20 4:53 ` Jay Belanger
2012-01-20 8:34 ` Roland Winkler
2012-01-20 16:48 ` Jay Belanger
2012-01-20 17:55 ` Roland Winkler
2012-01-20 19:10 ` Jay Belanger
2012-01-20 20:30 ` Roland Winkler
2012-01-20 20:54 ` Jay Belanger
2012-01-20 22:10 ` Roland Winkler
2012-01-21 0:00 ` Jay Belanger
2012-01-21 9:24 ` Roland Winkler
2012-01-21 14:45 ` Jay Belanger
2012-01-21 15:12 ` Roland Winkler
2012-01-21 15:28 ` Jay Belanger
2012-01-21 15:42 ` Jay Belanger
2012-01-21 16:03 ` Roland Winkler
2012-01-20 20:36 ` Roland Winkler
2012-01-21 4:21 ` Jay Belanger
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20248.39483.716850.185512@gargle.gargle.HOWL \
--to=winkler@gnu.org \
--cc=10554@debbugs.gnu.org \
--cc=jay.p.belanger@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.