Hyperbolic Paraboloid - with equation

This is a model of a hyperbolic paraboloid x^2-y^2=2z, labeled with its equation. There is a second .stl file showing the surface without the equation. There is a third .stl file with the surface with equation in arial font.

This model was designed and printed by my WLU summer research student Emily Jaekle ('16). For more information see http://mathvis.academic.wlu.edu/2015/07/21/quadratic-surfaces-hyperbolic-paraboloid/.