The shell command<br />"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/23bc05e1c4d66452f748e66925182961.gif" -- '\Large  \left\{ \begin{array}{l} x=r\cos \theta\\ y=r\sin \theta \end{array}\right. \Leftrightarrow \left\{ \begin{array}{l} r^2=x^2+y^2 \\ \tan{\theta} = y/x. \end{array}\right. '<br />returned status = 126<br />
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