From: Michael Brand <michael.ch.brand@gmail.com>
To: Eric Abrahamsen <eric@ericabrahamsen.net>
Cc: Org Mode <emacs-orgmode@gnu.org>
Subject: Re: getting calc-units working in table formulas
Date: Tue, 16 Dec 2014 14:06:12 +0100 [thread overview]
Message-ID: <CALn3zohF_HpHqmaBFWHHmgcOEJBXhundsoDdo5qu9__X6VhkXA@mail.gmail.com> (raw)
In-Reply-To: <87oar4ql5t.fsf@ericabrahamsen.net>
Hi Eric
This answers only one of your questions:
On Tue, Dec 16, 2014 at 5:21 AM, Eric Abrahamsen
<eric@ericabrahamsen.net> wrote:
> #+BEGIN_SRC emacs-lisp
> (defmath uconvert (expr target-units)
> (math-convert-units expr target-units))
> #+END_SRC
I would prefer
#+BEGIN_SRC emacs-lisp
(defmath uconv (expr target-units &optional pure)
(math-convert-units expr target-units pure))
#+END_SRC
> | km | ft |
> |-------+---------------------|
> | 2.5km | uconvert(2.5 km ft) |
> #+TBLFM: $2=uconvert($1 ft)
Calc syntax uses comma to separate the function arguments, see
examples in e. g.
http://orgmode.org/manual/Formula-syntax-for-Calc.html
| km | ft |
|--------+--------------|
| 2.5 km | 8202.0997 ft |
#+TBLFM: $2 = uconv($1, ft)
Btw, to have the units only in the column header:
| km | ft |
|-----+-----------|
| 2.5 | 8202.0997 |
#+TBLFM: $2 = uconv($1 * @<$1, @<$2, t)
The same without a user's defmath:
| km | ft |
|-----+-----------|
| 2.5 | 8202.0997 |
#+TBLFM: $2 = usimplify($1 * @<$1 / @<$2)
Michael
next prev parent reply other threads:[~2014-12-16 13:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-16 4:21 getting calc-units working in table formulas Eric Abrahamsen
2014-12-16 6:33 ` Eric Abrahamsen
2014-12-16 13:06 ` Michael Brand [this message]
2014-12-17 1:09 ` Eric Abrahamsen
2014-12-17 6:39 ` Michael Brand
2014-12-17 7:02 ` Eric Abrahamsen
2014-12-18 10:07 ` [PATCH] " Eric Abrahamsen
2014-12-20 16:33 ` Nicolas Goaziou
2014-12-21 4:22 ` Eric Abrahamsen
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