On the Convergence Rate of Hermite-Fejér Interpolation

On the Convergence Rate of Hermite-Fejér Interpolation
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DOI:
10.1007/978-3-030-39647-3_50
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发表时间:
2020
期刊:
Lecture Notes in Computational Science and Engineering
影响因子:
--
通讯作者:
S. Xiang;Guo He
S. Xiang;Guo He
中科院分区:
其他
文献类型:
--
作者:
S. Xiang;Guo He

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相似文献

这个多项式被称为hermite - fejamer插值多项式。特别值得注意的是,在切比雪夫点系(3)处,与相应的拉格朗日插值多项式相比,上述hermite - fejsamir插值多项式的收敛速度要慢得多(见图1)。为了快速收敛,考虑f (x)在节点(1)处的hermite - fejsamir插值[6,7]:
This polynomial is known as the Hermite-Fejér interpolation polynomial. It is of particular notice that the above Hermite-Fejér interpolation polynomial converges much slower compared with the corresponding Lagrange interpolation polynomial at the Chebyshev pointsystem (3)(see Fig. 1). To get fast convergence, the following Hermite-Fejér interpolation of f (x) at nodes (1) is considered [6, 7]: