期刊
NUMERICAL ALGORITHMS
卷 86, 期 2, 页码 833-861出版社
SPRINGER
DOI: 10.1007/s11075-020-00914-9
关键词
Convex interpolation; Generalized cubic spline; Algorithm; Tension parameters; Sufficient conditions of convexity
资金
- program of fundamental scientific researches of the SB RAS [0314-2019-0013]
The paper presents an algorithm for selecting tension parameters of generalized splines for convexity preserving interpolation. Specific algorithms for different generalized cubic splines are considered, including rational, exponential, variable power, hyperbolic splines, and splines with additional knots.
We offer the algorithm for choosing tension parameters of the generalized splines for convexity preserving interpolation. The resulting spline minimally differs from the classical cubic spline and coincides with it if sufficient convexity conditions are satisfied for the last one. We consider specific algorithms for different generalized cubic splines such as rational, exponential, variable power, hyperbolic splines, and splines with additional knots.
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