From: "Fraga, Eric" <e.fraga@ucl.ac.uk>
To: Ypo <ypuntot@gmail.com>
Cc: Org-mode <emacs-orgmode@gnu.org>
Subject: Re: To convert and simplify units in tables
Date: Mon, 12 Dec 2022 09:08:32 +0000 [thread overview]
Message-ID: <87sfhlat0w.fsf@ucl.ac.uk> (raw)
In-Reply-To: <2ff2b255-029d-c0f4-6102-0e4482b53b63@gmail.com> (Ypo's message of "Sun, 27 Nov 2022 20:19:42 +0100")
On Sunday, 27 Nov 2022 at 20:19, Ypo wrote:
> The alternative way I am trying is using an org-table. It is not
> literate programming, but it is a spreadsheet with units ;D
> [...]
> Now, in a more practical case, I have some problems with units:
>
> | $ | E = 2141404.05 kg/cm^2 |
> | $ | s_lim = 275 N/mm^2 |
> | $ | s_lim = 2800 kg/cm^2 |
> | $ | W = 10000 kg |
> | $ | l = 65 cm |
> | $ | I = 25166 cm^4 |
> | $ | Z = 1680 cm^3 |
> | _ | s |
> | | 386.90476 kg cm / cm^3 |
> | _ | cs |
> | | 7.2369231 kg cm^3 / (cm^2 kg cm) |
>
> #+TBLFM: $s=$W*$l/$Z::$cs=$s_lim/$s
org tables do have support for units, based on Emacs Calc. You need to
add the "u" option to the formulas for this support. If I change your
formulas to:
#+TBLFM: $cs=$s_lim/$s;u::$s=$W*$l/$Z;u
everything seems to work just fine.
--
: Eric S Fraga, with org release_9.6-14-g53814a in Emacs 30.0.50
prev parent reply other threads:[~2022-12-12 9:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-27 19:19 To convert and simplify units in tables (was:LIterate programming with calc (help)) Ypo
2022-12-10 13:51 ` Ihor Radchenko
2022-12-10 16:04 ` ypuntot
2022-12-12 9:08 ` Fraga, Eric [this message]
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