A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles, is ...
5.7 update: Updated the code to 5.7. I will have to update the readme over time 5.6 update: Updated the code to 5.6 with many small improvements and fixes. Apologies for the lack of response to PRs ...