====== PlayGround ======

play here ....


$$ \frac{d}{dx}\left( \int_{0}^{x} f(u)\,du\right)=f(x) $$



A table
|              ^ Heading 1            ^ Heading 2          ^
^ Heading 3    | Row 1 Col 2          | Row 1 Col 3        |
^ Heading 4    | no colspan this time |                    |
^ Heading 5    | Row 2 Col 2          | Row 2 Col 3        |




{{cal>calendrier_1}}

<PHP>
printf("<br>Hello<hr>");

print '<pre>' . htmlspecialchars(print_r(get_defined_vars(), true)) . '</pre>';
print '<pre>' . htmlspecialchars(print_r($_SERVER, true)) . '</pre>';

printf("<br>The end<hr>");

</PHP>

This calendar start on Monday, whatever...

{{cal>calendrier_2}}