| OCR Text |
Show 16 elements the for the A order same is quadric diagonal the represent coefficients terms. transformed and by pre inverse and inverse the the across post mUltiplying of transpose the by point transformation matrix: their with intersections description types of The with defined Objects how of to curves space normal to a quadrics other Levin quadrics. compute and possible due quadric usually are is manipulate such to the bounded [10] the by gives a various intersections. gradient at the point in question N = = [ ClF 3F 3x 3y (x y z ClF] 3z w) Q 2 0 0 2 0 0 0 0 It be of so happens described u and that this same parametrically by class rational l of auadratic v. x(u,v) = (u2 U 1) surfaces [ i ] [n can also functions |