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Dromedar - singular algebraic surface

by ofloveandhate

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algebraic algebraic geometry algebraic surface Amethyst bertini bertini real blender herwig hauser math math art non-manifold ofloveandhate singular surface unbounded

Dromedar, a singular algebraic surface of degree four. This is the set of real points for which
```
x^4 - 3*x^2 + y^2+z^3 = 0.
```

Has a single singularity, at the origin!

I have provided these files:
* `Dromedar_thickened_Smooth.stl` -- has the normal vectors fixed, and is thickened for printing.
* `Dromedar_thickened_Blocky.stl` -- the blocky version, good for printing
* `dromedar_raw_blocky.stl` -- raw triangulation coming from Bertini_real. Since the program works in arbitrary

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