上海大学学报(自然科学版) ›› 2014, Vol. 20 ›› Issue (1): 107-113.doi: 10.3969/j.issn.1007-2861.2013.07.021

• 数理化科学 • 上一篇    下一篇

一种三元Newton-Thiele型有理插值方法

崔蓉蓉1,2, 顾传青1   

  1. 1. 上海大学 理学院, 上海 200444; 2. 盐城师范学院 数学科学学院, 江苏 盐城 224002
  • 收稿日期:2013-11-03 出版日期:2014-02-28 发布日期:2014-02-28
  • 通讯作者: 顾传青(1955—), 男, 教授, 博士生导师, 研究方向为数值逼近、数值代数及其应用. E-mail:cqgu@shu.edu.cn
  • 基金资助:

    国家自然科学基金资助项目(11371243); 上海市教委科研创新基金重点资助项目(13ZZ068); 上海市重点学科建设资助项目(S30104)

A Method of Triple Newton-Thiele Type Rational Interpolation

CUI Rong-rong1,2, GU Chuan-qing1   

  1. 1. College of Sciences, Shanghai University, Shanghai 200444, China;
    2. School of Mathematical Science, Yancheng Teachers University, Yancheng 224002, Jiangsu, China
  • Received:2013-11-03 Online:2014-02-28 Published:2014-02-28

摘要: 结合二元Thiele 型插值分叉连分式和牛顿插值多项式, 通过引入混合偏差商构造三元有理插值, 进一步给出其特征定理和误差估计, 最后给出数值算例.

关键词: 混合偏差商, 连分式, 有理插值

Abstract: The bivariate Thiele-type interpolating branched continued fractions and Newton interpolation polynomials are combined. By introducing the so-called blending partial differences, a triple rational interpolation scheme is obtained. The characteristic theorem and error estimation are presented. Finally, an example is given.

Key words: blending partial difference, continued fraction, rational interpolation

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