Definitions for: Quadric
[n] a curve or surface whose equation (in Cartesian coordinates) is of the second degree
Webster (1913) Definition: Quad"ric, a. (Math.)
Of or pertaining to the second degree.
(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.
Synonyms: quadric surface
See Also: curve, curved shape, hyperboloid
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