### Description

Visualizing a quadric function <em>F(x,y,z) = c</em>

This example is inspired by the Figure 4-1, page 83, in the [VTK Book](https://www.kitware.com/products/books/VTKTextbook.pdf).

!!! info
    See [Figure 4-1](/VTKBook/04Chapter4/#Figure%204-1) in [Chapter 4](/VTKBook/04Chapter4) the [VTK Textbook](/VTKBook/01Chapter1).
