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Paraboloidal coordinates are a three-dimensional orthogonal coordinate system (λ,μ,ν) that generalizes the Similar to the related ellipsoidal coordinates, the paraboloidal coordinate system has orthogonal quadratic coordinate surfaces that are not produced. — “Paraboloidal coordinates - Wikipedia, the free encyclopedia”, en.wikipedia.org
In mathematics, a paraboloid is a quadric surface of special kind. The two paraboloidal functions. and. are harmonic conjugates, and together form the analytic function. which is the analytic. — “Paraboloid - Wikipedia, the free encyclopedia”, en.wikipedia.org
A paraboloidal shape is precisely the shape needed for the primary The rotating liquid assumes the paraboloidal shape regardless of the container's shape. — “Liquid mirror - Wikipedia, the free encyclopedia”, en.wikipedia.org