From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rasmus <rasmus@gmx.us>
Subject: Re: org-preview-latex-fragment is very picky
Date: Sun, 05 May 2013 21:07:23 +0200
Message-ID: <87mws9z1n8.fsf@pank.eu>
References: <87ip2xqq0d.fsf@mat.ucm.es>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([208.118.235.92]:46375)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1UZ4Hf-00017K-AH
	for emacs-orgmode@gnu.org; Sun, 05 May 2013 15:07:44 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1UZ4He-00035O-8e
	for emacs-orgmode@gnu.org; Sun, 05 May 2013 15:07:43 -0400
Received: from plane.gmane.org ([80.91.229.3]:56260)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1UZ4He-00035I-24
	for emacs-orgmode@gnu.org; Sun, 05 May 2013 15:07:42 -0400
Received: from list by plane.gmane.org with local (Exim 4.69)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1UZ4HX-00008P-8l
	for emacs-orgmode@gnu.org; Sun, 05 May 2013 21:07:35 +0200
Received: from e178246201.adsl.alicedsl.de ([85.178.246.201])
	by main.gmane.org with esmtp (Gmexim 0.1 (Debian))
	id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Sun, 05 May 2013 21:07:35 +0200
Received: from rasmus by e178246201.adsl.alicedsl.de with local (Gmexim 0.1
	(Debian)) id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Sun, 05 May 2013 21:07:35 +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

Uwe Brauer <oub@mat.ucm.es> writes:

> Hello 
> the following formula works well with org-preview-latex-fragment
> $\|v^k(t
>
> However 
>
> $ \|vk(t)\|_{Hs+1,δ}$
>
> Not nor 
>
> $ \|vk(t)\|_{Hs+1,δ}$,
>
> Could that behaviour made a little less picky?

Probably not.

Note these are Org features irrespective of fragment preview.  There
was some talk about it not so long ago.

Basically, it just happens that $·$ works as desired most of the time.
The proper way in LaTeX as well as in Org is \(·\).  Often you'll find
that in challenging cases you're better off with \(·\).

To see whether $·$ will work I use

  (setq org-highlight-latex-and-related '(latex))

To have nice symbols making preview of fragments less dire I use
pretty entities:

  (setq org-pretty-entities t)

Pretty entities can also be turned on locally.  For missing glyphs
you're using you can do something like:

  (setq org-entities-user '(("implies" "\\Rightarrow" t "&rArr;" "=>" "=>" "⇒")
                            ("iff" "\\iff" t "&hArr;" "<=>" "<=>" "⇔")))

Hope this helps. 

–Rasmus

-- 
Don't panic!!!