The shell command<br />"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/21b4b34c5070ad9d2d45297a6e15fced.gif" -- '\Large 
  \mathbf{r}(t)=\begin{cases}x(t)=a(t-\sin t)\\ y(t)=a(1-\cos t).\end{cases}
  '<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>