On geometric Lagrange interpolation by quadratic parametric patchesJaklič, Gašper (Avtor) Kozak, Jernej (Avtor) Knez, Marjetka (Avtor) Vitrih, Vito (Avtor) Žagar, Emil (Avtor) numerična analizainterpolacijaaproksimacijaparametrična ploskevnumerical analysisinterpolationapproximationparametric surfaceIn the paper, the geometric Lagrange interpolation by quadratic parametric patches is considered. The freedom of parameterization is used to raise the number of interpolated points from the usual 6 up to 10, i.e., the number of points commonly interpolated by a cubic patch. At least asymptotically, the existence of a quadratic geometric interpolant is confirmed for data taken on a parametric surface with locally nonzero Gaussian curvature and interpolation points based upon a three-pencil lattice. Also, the asymptotic approximation order 4 is established.20082016-04-08 16:46:33Delo ni kategorizirano7726ISSN: 0167-8396UDK: 519.651OceCobissID: 25266176DOI: 10.1016/j.cagd.2007.09.002COBISS.SI-ID: 14637657sl