The shell command<br />"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/a3e79db14ee989952c544d17b509aa7c.gif" -- '\Large 
  	f(x,y)=\left\{\begin{array}{rl}
  	\frac{2xy}{x^2 +y^2}, & \text{kun }x^2+y^2>0,\\
  	0, &\text{kun } (x,y)=(0,0).
  	\end{array}\right.
  '<br />returned status = 126<br />
Image not found!<br />Please try the <a href="https://mycourses.aalto.fi/filter/tex/texdebug.php">debugging script</a>