!! used as default html header if there is none in the selected theme.
This module is an exercise on the graphical recognition of the derivative of a function.
The server will give you the curve of a continuous and differentiable function f(x) on the interval [-2,2]. This function is randomly generated by the server, and its expression is hidden from you. You will then be presented with a certain number of other curves, and have to recognize among them that of the derivative function f'(x) (or one of f'(-x), -f'(x) ou -f'(-x), according to the configuration of the exercise). To send the reply, you can simply click on the curve which you think is the good one.
Please take note that WIMS pages are interactively generated; they are not ordinary HTML files. They must be used interactively ONLINE. It is useless for you to gather them through a robot program.