What is this shape called mathematically?

I would like to know the technical/mathematical name of the form in the image.

3 Answer

Some curves don't have specific name but they are clubbed under free-form curves or shapes. So this is one of the kind. May be you can call it as free form shape or a illustration.

A lattice structure. They come in as many repeating pattern elements as one can imagine. All the rage in additive manufacturing these days.