From mboxrd@z Thu Jan  1 00:00:00 1970
X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/6277
Path: main.gmane.org!not-for-mail
From: Tobias Burnus <tobias.burnus@physik.fu-berlin.de>
Newsgroups: gmane.comp.tex.context
Subject: Calculating in TeX
Date: Wed, 5 Dec 2001 22:31:04 +0100 (CET)
Sender: owner-ntg-context@let.uu.nl
Message-ID: <Pine.BSF.4.30.0112052223001.3513-100000@chip.physik.fu-berlin.de>
NNTP-Posting-Host: coloc-standby.netfonds.no
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Trace: main.gmane.org 1035396811 9062 80.91.224.250 (23 Oct 2002 18:13:31 GMT)
X-Complaints-To: usenet@main.gmane.org
NNTP-Posting-Date: Wed, 23 Oct 2002 18:13:31 +0000 (UTC)
Original-To: <ntg-context@ntg.nl>
Xref: main.gmane.org gmane.comp.tex.context:6277
X-Report-Spam: http://spam.gmane.org/gmane.comp.tex.context:6277

Hi,

I have a nice document where I need to perform small calculation (actually
only calculating the average value):
 if((#1+#2+#3) != 0)
   (#1*1 + #2*2 + #3*3)/(#1+#2+#3)
 else
   "--"

Now I was thinking where I could do so in TeX. (I think there are some
macros in ConTeXt, but I cannot find them.)

The output should be of the form "1{,}4" (i.e. separator is a {,} and I
get one figure after the separator).

If there is no good solution I will write a script which calculates this
values and does a inline replacement of the data. -- This is not that
error save since one needs to make sure that this script is run before
texexec...

Tobias