I am trying to display an equation using Markdown+blahtex/PNG in
Instiki 0.18. Blahtex is compiled from blahtexml-0.7-corrected-src.
I tried
$ \begin{aligned} ... \end{aligned} $
and
\$ \begin{aligned} ... \end{aligned} \$
Both expressions return a page with the apache error "Internal Error
An application error occurred while processing your request".
The Instiki error in the first case is:
RuntimeError (No depth element in:
<blahtex>
<png>
<error><id>CannotRunLatex</id><message>Cannot run latex</message></error>
</png>
</blahtex>
The Instiki error in the second case is:
RuntimeError (Blahtex error:
<blahtex>
<error><id>IllegalFinalBackslash</id><message>Illegal backslash "\" at
end of input</message></error>
</blahtex>
Am I using the wrong syntax?
I'm using Gentoo and TeX Live 2008 is installed.
/usr/local/bin/blahtex is in the command path.
Running blahtex from the command line works. The following simple
test produces correct PNG output.
# echo '\sqrt{x^2+\alpha}' | blahtex --png
The Apache VirtualHost is configured as follows:
ProxyRequests Off
<Proxy *>
Order Allow,Deny
Allow from all
</Proxy>
ProxyPass /files !
ProxyPass / http://localhost:2500/
ProxyPassReverse / http://localhost:2500/
Thanks,
Peter
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