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Quartic smoothing splines generalized. (English) Zbl 1049.41005

Smoothing splines of various types are developed and tested in this article. Accompanied by many examples, the smoothing splines are generated by minimizing quadratic functionals with parameters (the functionals varying mainly with repect to the degree of derivatives which are taken). For equispaced knots, the functionals are provided in discrete (matrix) form by using local spline representations of the solutions to the problem. Algorithms and matlab programs are given as well.

MSC:

41A15 Spline approximation
65D05 Numerical interpolation

Software:

Matlab; FITPACK
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Full Text: EuDML

References:

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