The shell command<br />"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/3eed2958ce841f5466a13a0e4082a97a.gif" -- '\Large 
|\Delta f|\lesssim |\nabla f (\mathbf{r})\cdot  \Delta \mathbf{r}|
               \le |f_x| |\Delta x|+|f_y| |\Delta y|+ |f_z| |\Delta z|,
'<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>