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    • Representing Conics using NURBS of Degree Two* 

      Qin, Kaihuai; Sun, Jiaguang; Wang, Xuefu (Blackwell Science Ltd and the Eurographics Association, 1992)
      In this paper, a new method is presented for representing conics precisely using NURBS of degree two. The method requires only four control vertices to represent a full circle using the full circumscribing square-based ...