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Text File  |  1994-03-29  |  213 b   |  10 lines
  1. // create a quadratic polynomial surface
  2. quadric
  3. {
  4.   <A, B, C> //  A x^2  + B y^2  + C z^2  +
  5.   <D, E, F> //  D xy   + E xz   + F yz   +
  6.   <G, H, I> //  G x    + H y    + I z    +
  7.   J         //  J
  8.   // [sturm]
  9. }
  10.