Quadric

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Quadric \Quad"ric\, a. (Math.)
     Of or pertaining to the second degree.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:



  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]

From WordNet (r) 2.0 [wn]:

  quadric
       n : a curve or surface whose equation (in Cartesian coordinates)
           is of the second degree [syn: {quadric surface}]