On Lagrange and Hermite interpolation in Rk

On Lagrange and Hermite interpolation in Rk
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DOI:
10.1007/bf01399308
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发表时间:
1982-02
影响因子:
2.1
通讯作者:
M. Gasca;J. I. Maeztu
M. Gasca;J. I. Maeztu
中科院分区:
数学2区
文献类型:
--
作者:
M. Gasca;J. I. Maeztu

文献摘要

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给出了多元插值数据集的构造方法。得到的数据,这是函数值或方向导数值,产生一个多项式的空间,在这样的方式,保证unisolvence。插值多项式的计算使用一个程序,推广了牛顿分差公式为一个单一的变量。
A method for the construction of a set of data of interpolation in several variables is given. The resulting data, which are either function values or directional derivatives values, give rise to a space of polynomials, in such a way that unisolvence is guaranteed. The interpolating polynomial is calculated using a procedure which generalizes the Newton divided differences formula for a single variable.