Method of phantom nodes in the interpolation problem trigonometric splines
DOI:
https://doi.org/10.18372/2073-4751.4.6362Keywords:
ВузлиAbstract
A method of phantom nodes for the case when trigonometric splines are used in the role of theapproximating function is studied [2]. This method involves the fact that a sequence of giveninterpolation nodes are added to an even number of phantom nodes; and the values in these nodes areselected based on estimates of the derivatives, which are measured through the divided differences.Test examples are given; the interpolation error is significantly reduced for these examples.References
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