- circle(2)
- oval(2,1)
- -semicircle(1) and semicircle(1)
- disc(1) disc with radius 1.
### ring(r1,r2) with two radius r1 and r2

- ring(1,2) ring with radius 1 and 2.
more in Drawing

## 3D objects

- cube
- sphere
- Cylinder

more objects in graphics objects

If you have good idea or example, please contact us, I might include it into this demo page, of course with credit to you, your name will be included here.

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