From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rasmus <rasmus@gmx.us>
Subject: Re: latex formula error when nested into a list?
Date: Thu, 10 Jul 2014 17:51:55 +0200
Message-ID: <8738e9tdno.fsf@gmx.us>
References: <CAKoxK+7WXsw0YKUO5VFV_Kdmy4_qUq1bA2yDiCyi=BwOy-gRyg@mail.gmail.com>
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]:51241)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1X5Gdy-0002bc-1i
	for emacs-orgmode@gnu.org; Thu, 10 Jul 2014 11:52:30 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1X5Gdq-0007iV-Gv
	for emacs-orgmode@gnu.org; Thu, 10 Jul 2014 11:52:21 -0400
Received: from plane.gmane.org ([80.91.229.3]:33756)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1X5Gdq-0007iJ-9e
	for emacs-orgmode@gnu.org; Thu, 10 Jul 2014 11:52:14 -0400
Received: from list by plane.gmane.org with local (Exim 4.69)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1X5Gdo-0004zi-Sj
	for emacs-orgmode@gnu.org; Thu, 10 Jul 2014 17:52:12 +0200
Received: from 109.201.154.182 ([109.201.154.182])
	by main.gmane.org with esmtp (Gmexim 0.1 (Debian))
	id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Thu, 10 Jul 2014 17:52:12 +0200
Received: from rasmus by 109.201.154.182 with local (Gmexim 0.1 (Debian))
	id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Thu, 10 Jul 2014 17:52:12 +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-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
To: emacs-orgmode@gnu.org

Hi Luca,

Luca Ferrari <fluca1978@gmail.com> writes:

> Hi all,
> don't know if this is a normal behavior, but using a latex formula like this:
>
> \begin{equation}
> \begin{align}
> a \times b &= c \times d \\& = f
> \end{align}
> \end{equation}
>
> into an org list, that is:
>
> - \begin{equation}
> \begin{align}
> a \times b &= c \times d \\& = f
> \end{align}
> \end{equation}
>
> produces the following latex error:
>
> ! Package amsmath Error: Erroneous nesting of equation structures;
> (amsmath)                trying to recover with `aligned'.
>
> while removing the list bullet makes it working. Am I doing something
> wrong? Is it possible to nest formulas into lists?

Did you see the error message?  

> ! Package amsmath Error: Erroneous nesting of equation structures;
> (amsmath)                trying to recover with `aligned'.

You want

    \begin{equation}
    \begin{aligned}
    a \times b &= c \times d \\& = f
    \end{aligned}
    \end{equation}

or

    \begin{align}
    a \times b &= c \times d \\& = f
    \end{align}

depending on whether you want the expression to have one number or one
number per line.

You can access the amsmath help file by typing texdoc amsmath or
mthelp amsmath in your terminal with TL or MikTeX.

Hope it helps,
Rasmus

-- 
Dobbelt-A