Hello my friends,

I am a beginner with Rhino and Grasshopper. Some years ago I went to an exhibition (can’t remember what was about, nor who the author was), this exhibition had on display, various models that were generated from mathematic equations. I only took this two photographs, one i was lucky to include the equation.

So, how do I even start to model this one with Rhino? I guess I must use Grasshopper.

I also believe that the model is composed of two intersecting parts, hence the break in the equation. I wasn’t that great with mathematics, but I can see it’s composed with parabolic equations, giving the U shapes, I just don’t understand how the cubic exponent influences the model.

Thank you.

I want to learn how to make other model from equations so I am grateful if you provide links or tutorials on how to start with the basics.

```
(y^2)(z^3) - 4xz^4 + 6.75y^4 - (36xy^2)z +
+ (32x^2)(z^2) - 64x^3 = 0
```

*(can’t type superscript numbers here so I hope I wrote it correctly. down below is a correct screenshot)*

These are the graphs that are generated using desmos.com. Being **z** a variable, the graph changes accordingly.

PS: I found the exhibition links, here they are: (sorry it’s in portuguese)

https://www.museus.ulisboa.pt/pt-pt/exposicao-formas-e-formulas