(definition) by Webster 1913 Wed Dec 22 1999 at 2:24:44

Quad"ric (?), a. Math.

Of or pertaining to the second degree.

 

© Webster 1913.

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.

 

© Webster 1913.

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