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Scattered data interpolation by bivariate \(C^ 1\)-piecewise quadratic functions. (English) Zbl 0724.41003

Summary: We propose a completely local scheme based on continuously differentiable quadratic piecewise polynomials for interpolating scattered positional data in the plane, in such a way that quadratic polynomials are reproduced exactly. We present some numerical examples and applications to contour plotting.

MSC:

41A05 Interpolation in approximation theory
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