### Inequality Equations

The area a curve or the volume under a surface can be nicely rendered using semi-transparent colors that clearly demonstrate the extend of the area. This feature is
especially powerful in 3D when the graph can be rotated in real-time to view the volume under a surface from all angles.

In addition to cartesian coordinates you can also generate the volume under the surface for polar, cylindrical and spherical equations.

### Examples

- Cartesian equations:
- z < sin(x)+sin(y)
- y < sqrt(z-x^2)
- x > y^2

- Spherical equations: