The hyperbolic paraboloid is a fascinating surface in mathematics and geometry, defined by the equation z = (x²/a²) – (y²/b²). It is a type of saddle surface, meaning it curves upward in one direction and downward in the perpendicular direction. This unique combination of concave and convex curvature makes it distinct from more familiar surfaces like spheres or cylinders. Because of its shape, it is often described as having both “negative” and “positive” curvature at the same point, which is wh

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