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斯蒂芬森-牛顿类迭代法的二阶收敛性

郑 权1, 刘停战2   

  1. 1. 北方工业大学理学院, 北京 100041; 2. 吉林大学数学学院, 长春 130012
  • 收稿日期:2002-09-09 修回日期:1900-01-01 出版日期:2003-04-26 发布日期:2003-04-26
  • 通讯作者: 刘停战

The Quadratic Convergence of the Steffensen-Newton-Like Iteration Method

ZHENG Quan1, LIU Ting-zhan2   

  1. 1. College of Science, North China University of Technology, Beijing 100041, China; 2. College of Mathematics, Jilin University, Changchun 130012, C hina
  • Received:2002-09-09 Revised:1900-01-01 Online:2003-04-26 Published:2003-04-26
  • Contact: LIU Ting-zhan

摘要: 讨论一种解非线性方程的具有变参数的不带导数的二阶收敛迭代法. 利用动力系统理论推导出该方法的迭代公式, 证明其在某些弱条件下至少是二阶收敛的, 最后给出了数值结果.

关键词: 非线性方程, 动力系统, 李雅普诺夫方法, 迭代法, 二次收敛

Abstract: A quadratic convergent iteration method with adjusted parameters without derivative for solving nonlinear equations is discussed in this paper. We have deduced the iterative formula by the theory of the dynamic system, proved that the quadratic convergence holds under the weak conditions, and done the numerical experiments.

Key words: nonlinear equation, dynamic system, Liapnov’s method, iteration method, quadratic convergence

中图分类号: 

  • O241.7