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## [Orgmode] latex fragment problems with * environments

 From: Eric S Fraga Subject: [Orgmode] latex fragment problems with * environments Date: Mon, 11 May 2009 19:02:29 +0100 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.92 (gnu/linux)

Carsten et al.,

If I have the following bit of LaTeX code in my org file:

,----
|   \begin{eqnarray}
|     x &=& a_i + b_j + c_{k} \\
|     y &=& \sqrt{x}
|   \end{eqnarray}
|
|   \begin{eqnarray*}
|     x &=& a_i + b_j + c_{k} \\
|     y &=& \sqrt{x}
|   \end{eqnarray*}
----

and ask for a LaTeX export, I get the following generated:

,----
|   \begin{eqnarray}
|     x &=& a_i + b_j + c_{k} \\
|     y &=& \sqrt{x}
|   \end{eqnarray}
|
|   \begin{eqnarray*}
|     x \&=\& a$_i$ + b$_j$ + c$_{k}$ \\
|     y \&=\& \sqrt{x}
|   \end{eqnarray*}
----

The second environment has not been recognised by org-mode as a valid
latex fragment and so all the special characters (&, _) have been
processed instead of being left alone.

This could be my fault but I have no idea where to start looking in case
I've set something I shouldn't have.  Because the latex exporter has
changed since I last used any latex fragments in my org files, and that
has been a while, I am not sure if this ever worked properly anyway.

Or it could be that "*" environments don't get recognised correctly by
the latex exporter?  Is there a regexp that I can customise for this?

Thanks for any suggestions!  I've temporarily changed all * environments
to ones with the * (so I get tons of equation numbers I don't need) but
I would love to revert to what I had originally.

eric