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

> On Monday, 28 Sep 2015 at 21:10, Rainer M Krug wrote:
>> Hi
>>
>> I would need in a document several equations which are aligned as in 
>> http://tex.stackexchange.com/a/167908/6941
>
> I use align all the time.
>
>> How can I use the following latex formula in orgmode?
>>
>> \begin{proof} The proof is a follows: 
>> \begin{align}
>> (x+y)^3&=(x+y)(x+y)^2\\
>>        &=(x+y)(x^2+2xy+y^2)\\
>>        &=x^3+3x^2y+3xy^3+x^3.\qedhere
>> \end{align}
>> \end{proof}
>
> Where is proof defined? You may need to add specific packages to
> org-latex-packages-alist.

The proof and the ".\qedhere"

Stupid typos.

>
> In any case, I find that it is safer generally to enclose all LaTeX
> fragments in a LaTeX block: #+begin_latex ... #+end_latex.

Good idea - but then the preview does not work anymore?

Sorry for the noise and thanks,

Rainer

-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

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