quadric



From The Collaborative International Dictionary of English v.0.48:


Quadric \Quad"ric\, a. (Math.)
   Of or pertaining to the second degree.
   [1913 Webster]
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From The Collaborative International Dictionary of English v.0.48:


Quadric \Quad"ric\, n.
   (a) (Alg.) A quantic of the second degree. See Quantic.
   (b) (Geom.) A surface whose equation in three variables is of
       the second degree. Spheres, spheroids, ellipsoids,
       paraboloids, hyperboloids, also cones and cylinders with
       circular bases, are quadrics.
       [1913 Webster]














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