From mboxrd@z Thu Jan  1 00:00:00 1970
From: Francesco Turco <fturco@fastmail.fm>
Subject: Re: Exporting math code containing a cases environment to LaTeX
Date: Sat, 12 Mar 2016 19:33:57 +0100
Message-ID: <1457807637.3614061.547294426.127A8A6D@webmail.messagingengine.com>
References: <1457804962.3605548.547270650.7ABB8973@webmail.messagingengine.com>
	<87io0rmuiz.fsf@ucl.ac.uk>
Mime-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:43625)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <fturco@fastmail.fm>) id 1aeoMV-0004f0-0Z
	for emacs-orgmode@gnu.org; Sat, 12 Mar 2016 13:34:03 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <fturco@fastmail.fm>) id 1aeoMQ-0003uJ-Nc
	for emacs-orgmode@gnu.org; Sat, 12 Mar 2016 13:34:02 -0500
Received: from out4-smtp.messagingengine.com ([66.111.4.28]:52671)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <fturco@fastmail.fm>) id 1aeoMQ-0003uF-J8
	for emacs-orgmode@gnu.org; Sat, 12 Mar 2016 13:33:58 -0500
Received: from compute1.internal (compute1.nyi.internal [10.202.2.41])
	by mailout.nyi.internal (Postfix) with ESMTP id 3530520476
	for <emacs-orgmode@gnu.org>; Sat, 12 Mar 2016 13:33:58 -0500 (EST)
In-Reply-To: <87io0rmuiz.fsf@ucl.ac.uk>
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-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
To: emacs-orgmode@gnu.org

On Sat, Mar 12, 2016, at 19:16, Eric S Fraga wrote:
> Alternatively, you can enclose it all in a export block, as in
> 
> #+begin_export latex
> \[
> ...
> \]
> #+end_export

The following code doesn't work:

#+begin_export latex
\[
n!=
\begin{cases}
  1 & n=0 \\
  n(n-1)! & n\ge 1 \\
\end{cases}
\]
#+end_export

Because of the following error message:

> ! LaTeX Error: Environment export undefined.

But I can use #+begin_latex and #+end_latex instead.

I read the former syntax is new and will be released with Org Mode 9.0.
Is that true?

See https://www.mail-archive.com/emacs-orgmode@gnu.org/msg102960.html