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arXiv 1302.0419math.NAcs.NA
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非线性方程的无导数八阶迭代方法族

Eighth-order Derivative-Free Family of Iterative Methods for Nonlinear Equations

Umm al Qura University(乌姆古拉大学);Universitat PolitÚcnica de Catalunya(加泰罗尼亚理工大学);King Abdulaziz University(阿卜杜勒阿齐兹国王大学)

Laila M Assas, Fayyaz Ahmad, Malik Zaka Ullah

AI总结:

提出一个基于Steffensen导数近似和多项式插值的无导数八阶迭代方法族,在仅需四次函数求值下达到最优收敛阶。

摘要:

在这篇笔记中,我们提出一个用于非线性方程的无导数八阶迭代方法族。该族在Kung和Traub猜想的意义下表现出最优八阶收敛性,并基于牛顿法中使用的Steffensen导数近似。作为最后一步,出于计算目的,使用无导数多项式基插值来获得仅需四次函数求值的最优收敛阶。在本文末尾讨论了数值实验和一些问题。

英文摘要:

In this note, we present an eighth-order derivative-free family of iterative methods for nonlinear equations. The proposed family shows optimal eight-order of convergence in the sense of the Kung and Traub conjecture \cite{5} and is based on the Steffensen derivative approximation used in the Newton-method. As a final step, having in mind computational purposes, a derivative-free polynomial base interpolation is used in order to get optimal order of convergence with only four functional evaluations. Numerical esperiments and few issues are discussed at the end of this note.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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