文章基本信息

标题：Existence and Local Behavior of the Cubic Pade Approximation
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作者：Lei Shi ; Zhi-Min Xu
期刊名称：International Journal of Computer Science Issues
印刷版ISSN：1694-0784
电子版ISSN：1694-0814
出版年度：2014
卷号：11
期号：1
出版社：IJCSI Press
摘要：This paper analyses the local behavior of the cubic function approximation of the form where are algebraic polyno-mials of degree p,q,r respectively, to a function which has a given power series expansion about the origin. It is shown that the cubic Hermite-Pade form always defines a cubic function and that this function is analytic in a neighbourhood of the origin.
关键词：Cubic function approximation; Hermite;Pade approximation; algebraic polynomials