From mboxrd@z Thu Jan  1 00:00:00 1970
From: Uwe Brauer <oub@mat.ucm.es>
Subject: Re: workflow, matlab+latex in org file
Date: Tue, 12 Jul 2016 12:44:59 +0000
Message-ID: <87wpkrqb3o.fsf@mat.ucm.es>
References: <c0b96d809e4b41529f81beaa685a9fd0@HE1PR01MB1898.eurprd01.prod.exchangelabs.com>
	<87inwcm8hx.fsf@ucl.ac.uk>
Mime-Version: 1.0
Content-Type: text/plain
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:43404)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1bMx3r-0006pc-KD
	for emacs-orgmode@gnu.org; Tue, 12 Jul 2016 08:45:16 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1bMx3m-0003ph-N0
	for emacs-orgmode@gnu.org; Tue, 12 Jul 2016 08:45:15 -0400
Received: from plane.gmane.org ([80.91.229.3]:50099)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1bMx3m-0003pA-G7
	for emacs-orgmode@gnu.org; Tue, 12 Jul 2016 08:45:10 -0400
Received: from list by plane.gmane.org with local (Exim 4.69)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1bMx3k-0002pI-0V
	for emacs-orgmode@gnu.org; Tue, 12 Jul 2016 14:45:08 +0200
Received: from gilgamesch.quim.ucm.es ([147.96.12.99])
	by main.gmane.org with esmtp (Gmexim 0.1 (Debian))
	id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Tue, 12 Jul 2016 14:45:07 +0200
Received: from oub by gilgamesch.quim.ucm.es with local (Gmexim 0.1 (Debian))
	id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Tue, 12 Jul 2016 14:45:07 +0200
List-Id: "General discussions about Org-mode." <emacs-orgmode.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-orgmode/>
List-Post: <mailto:emacs-orgmode@gnu.org>
List-Help: <mailto:emacs-orgmode-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=subscribe>
Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
Sender: "Emacs-orgmode"
	<emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
To: emacs-orgmode@gnu.org

>>> "Eric" == Eric S Fraga <e.fraga@ucl.ac.uk> writes:

   > On Monday, 11 Jul 2016 at 12:32, Uwe Brauer wrote:
   >> Hello
   >> 
   >> I want in a org file, to include matlab code and run it (that I know how
   >> to do)
   >> 
   >> Then I want certain results, which are symbolic variables, expressed in
   >> latex, we I achieve  using matlab's latex command.
   >> 
   >> Like
   >> 
   >> #+begin_src matlab :results output
   >> clear all
   >> syms e p R g w K K2
   >> phi=[(e + (e+p)*R^2)^((g-1)/2);((e+p)*R*sqrt(1+R^2))/(e+(e+p)*R^2)]
   >> 
   >> jac=jacobian(phi,[e,p])
   >> ltxjac=latex(jac)
   >> #+end_src

   > A bit of a kludge but, if you don't want to modify the ob-matlab code,
   > you can explicitly generate LaTeX into a file and use it directly:

   > #+begin_src octave :exports none :results output
   >   clear all
   >   pkg load symbolic
   >   syms e p R g w K K2;
   >   phi=[(e + (e+p)*R^2)^((g-1)/2);((e+p)*R*sqrt(1+R^2))/(e+(e+p)*R^2)];

   >   jac=jacobian(phi,[e,p]);
   >   ltxjac = latex(jac);
   >   fid = fopen("jacobian.tex","w");
   >   fprintf(fid, "%s\n", ltxjac);
   >   fclose(fid);
   >   ltxjac
   > #+end_src

   > \begin{equation}
   > \input{jacobian}
   > \end{equation}

Thanks, that is a solution but  a bit cumbersome because of the
additional latex file. John sent me a hack which seems a bit more
flexible.

Uwe 
   > I don't have MATLAB so have tested with octave instead...