Hi Nick,

Thanks for your reply.  I updated my org to 7.5 and the $D$ worked in the title. However, if I use \(D\) in the title, it says:
undefined control sequence

I tried \( ... \) in body, its OK. 

Xin


On Thu, Jun 2, 2011 at 10:55 PM, Nick Dokos <nicholas.dokos@hp.com> wrote:
Xin Shi <shixin111@gmail.com> wrote:

> If I want to export to LaTeX with the math symbols in the title:
>
> #+TITLE:  This is a test for $D$
>
> I get the $D$ in the PDF. Are there any way to let it behave the same as in
> the body for the title?
>

This works fine here:

GNU Emacs 24.0.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.22.0)
Org-mode version 7.5 (baseline.263.gcf708)

Carsten pushed a fix back in November of last year. If your org-mode is older,
it's time to upgrade.

NB: it's probably a better practice to use the \(...\) inline math delimiters instead
of $...$

Nick