The manual says math environment need not be in \[ \].
\[
\begin{matrix}
1&d\\
d&d\\
\end{matrix}
\]
When I put mouse point on `begin' , I can get preview image through C-c C-x
C-l.
When I put mouse point on `matrix' , I get two identical matrix with a
square between them.
When I put mouse point on `1&d' , I get a square and \[ at above \] at below
.
Thanks
2009/8/11 Carsten Dominik <carsten.domi...@gmail.com>
>
> On Aug 11, 2009, at 3:41 PM, Nick Dokos wrote:
>
> waterloo <waterloo2...@gmail.com> wrote:
>>
>> Excuse me .
>>> I put the following latex code in an org file , and put point in it ,C-c
>>> C-x C-l. It don't produce the correct image. There is only an square
>>> appearing . The latex environment is include in amsmath package, which is
>>> include in Org Format Latex Header defautly.
>>>
>>>
>>> \begin{matrix}
>>> 1&d\\
>>> d&d\\
>>> \end{matrix}
>>>
>>>
>> I cannot be sure whether "waterloo" sees the same problem (from his
>> description, it seems that he gets just an empty square which indicates
>> additional/different problems - maybe missing the dvipng program?),
>>
>
> Yes, this seems to be a different problem. Maybe the problem is thatthe
> matrix environment must be inside a math environment?
>
>
> but
>> I do see a problem. Here is the org file:
>>
>> ,----
>> | #+LaTeX_HEADER: \usepackage{amsmath}
>>
>
> This is actually not necessary, I was mistaken here.
>
> |
>> | * foo
>> |
>> | \[
>> | \begin{matrix}
>> | 1&d\\
>> | d&d\\
>> | \end{matrix}
>> | \]
>> |
>> `----
>>
>> I can export this to LaTeX just fine (and I need the additional header,
>> at least in that case - I have not tried without it). But when I try the
>> preview C-c C-x C-l on the fragment, I get the preview of the matrix
>> twice with an empty square separating the two instances. I attach a PNG
>> image of the result. I checked the image that is produced in the ltxpng
>> subdirectory: it's just the image of the matrix, no problem there.
>>
>
> Hmm, another fun and interesting bug!
>
> Fixed now. Thanks.
>
> - Carsten
>
>
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