If you click on a small image, you will have the menu of the plotter with the equation of the surfaces already loaded. Which will allow you to plot a bigger image of the surface, while playing with the parameters (colors, viewing angles, zoom, spin, etc).

- Math - Symbol - Handbook
- Elementary Math - Higher Math
- Calculator - mathHand - mathHandbook
- Function - Formula - graphics
- Fractional Calculus - differential equation
- Example :