From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Dokos <ndokos@gmail.com>
Subject: Re: Braced inline math no longer supported: ($ ... $)
Date: Wed, 29 Oct 2014 19:37:50 -0400
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coroa@online.de (Jonas Hörsch) writes:

> I just updated my org-mode to latest master and found, that the
> behaviour of inline math seems to have changed; with the unwelcome
> side-effect, that inline math in braces is not exported correctly to
> latex anymore:
>
> ($\varepsilon = 0$) used to be exported to latex as ($\varepsilon = 0$),
> but recently became somewhat like:
>
> (\$\(\varepsilon\) = 0\$)
>
> producing spurious dollar signs. is there a workaround?

Use \(...\) for inline math, not $...$.

See the recent discussion here:

   http://thread.gmane.org/gmane.emacs.orgmode/92136

Nick