From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Welle <mwe012008@gmx.net>
Subject: Re: Calc: Multiply time (hours) with a float
Date: Mon, 19 Sep 2016 08:49:05 +0200
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To: emacs-orgmode@gnu.org

Hello,

Karl Voit <devnull@Karl-Voit.at> writes:

> * Michael Welle <mwe012008@gmx.net> wrote:
[...]
> ... which is working:
>
> | time [h:m:s] |   value | hours [float] |   product |
> |--------------+---------+---------------+-----------|
> |     09:15:00 | 2.54321 |          9.25 | 23.524693 |
>
> #+TBLFM: $4=$2*$3::@2$3='(org-time-string-to-hours $1)
>
> However, when I try to calculate the product in one step, I get an error:
>
> | time [h:m:s] |   value | product |
> |--------------+---------+---------|
> |     09:15:00 | 2.54321 | #ERROR  |
>
> #+TBLFM: @2$3='(* $2 (org-time-string-to-hours $1))
>
> When I replace "$2" in TBLFM with an integer value, it works.
>
> How can I calculate the product in /one/ step?
chapter 3.5.3 of Org's info manual might be of interest here. I haven't
fully 'inhaled' it, but like this should work:

#+TBLFM: @2$3='(* $2 (org-time-string-to-hours "$1"));L

Regards
hmw