!! used as default html header if there is none in the selected theme.
--- Introduction ---
Graphic functions is an exercise concerning the graphical recognition of
functions of one real variable. The server will give you the graph
of a function , whose expression will be hidden. You will
then be presented a certain number of other graphs, corresponding
to modifications of
such as , , , etc (see the menu below).
And you should locate the one which corresponds to one which will
be precised in a question. To give the reply, you can simply click on
the graph which you believe to be the good one.