Hi Nick,<div><br></div><div>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:</div><div>undefined control sequence</div><div><br></div><div>I tried \( ... \) in body, its OK. </div>
<div><br></div><div>Xin</div><div><br><br><div class="gmail_quote">On Thu, Jun 2, 2011 at 10:55 PM, Nick Dokos <span dir="ltr">&lt;<a href="mailto:nicholas.dokos@hp.com">nicholas.dokos@hp.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div></div><div class="h5">Xin Shi &lt;<a href="mailto:shixin111@gmail.com">shixin111@gmail.com</a>&gt; wrote:<br>
<br>
&gt; If I want to export to LaTeX with the math symbols in the title:<br>
&gt;<br>
&gt; #+TITLE:  This is a test for $D$<br>
&gt;<br>
&gt; I get the $D$ in the PDF. Are there any way to let it behave the same as in<br>
&gt; the body for the title?<br>
&gt;<br>
<br>
</div></div>This works fine here:<br>
<br>
GNU Emacs 24.0.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.22.0)<br>
Org-mode version 7.5 (baseline.263.gcf708)<br>
<br>
Carsten pushed a fix back in November of last year. If your org-mode is older,<br>
it&#39;s time to upgrade.<br>
<br>
NB: it&#39;s probably a better practice to use the \(...\) inline math delimiters instead<br>
of $...$<br>
<font color="#888888"><br>
Nick<br>
</font></blockquote></div><br></div>