Chazelle polyhedron is a non-convex polyhedron constructed by removing pieces of wedges from both top and bottom of a cube's sides, leaving the notches. Its saddle surface can be considered as the set of line segments that lie forming the hyperbolic paraboloid with an equation z = x y {\displaystyle z=xy} .
Chazelle polyhedron is a non-convex polyhedron constructed by removing pieces of wedges from both top and bottom of a cube's sides, leaving the notches. Its saddle surface can be considered as the set of line segments that lie forming the hyperbolic paraboloid with an equation z = x y {\displaystyle z=xy} .
Source: Wikipedia "Chazelle polyhedron" · CC BY-SA 4.0
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