Steiner Surfaces

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http://www.ipfw.edu/math/Coffman/steinersurface.html

Steiner Surfaces
Steiner Surfaces by Adam Coffman. Images rendered by POV-Ray 3.1. Background Equations and Graphics Animation Links Definition Let p0, p1, p2, p3 be quadratic polynomials in two variables u, v. This means they're of the form pi(u, v)=Au2+Buv+Cv2+Du+Ev+F for constant coefficients A, B, C, D, E, F. If you plot the parametric graph (x, y, z)=(p1/p0 , p2/p0 , p3/p0) for some range of input values u, v, ...