E1: Test the different surfaces without a change of parameters. Rotate the frames and train your 3D perception of these functions.

E2: Study the formulas and develop a sense for the relation between formulas and surface.

E3: Rotate, tilt and zoom the 3D projection to optimize the visual impression of the surface . Use the Camera Inspector, too (see Visualization page).

E4: Vary parameters and study the influence on the appearance of the surface.

E5: Change signs (+/-) in the formulas and study the effect.

E6: Vary the grade of power functions in the formulas and study the resulting surfaces.

E7: Edit the formulas freehandedly and consider in advance how that should influence the surface.

E8: Animate different parameters, or two at the same time.

E9: Delete the animation term and use p as a free fourth parameter in your own formula.

E10: Reflect in using 3D surfaces created this way in design of 3D objects. The last three predefined functions are intended as encouragement (mouth and boat). Remember that numerical machines could directly use the formulas for control.