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一种求解非线性方程组的3p阶迭代方法 被引量:14

A NEW METHOD WITH CONVERGENCE ORDER 3p FOR SOLVING SYSTEMS OF NONLINEAR EQUATIONS
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摘要 本文将一种改进的二步迭代算法作为预测,将高斯-勒让德求积公式作为校正,提出了一种求解非线性方程组的具有3p收敛阶的迭代方法.最后给出了一些数值实例,将本文的实验结果与现有的几种迭代方法的实验结果作了比较分析,验证了本文所提出的结果. In this paper, we present a new iterative scheme with the convergence order 3p for solving the systems of nonlinear equations by using a modified two-step iterative algorithm as a predictor and Gauss-Legendre quadrature as a corrector. Numerical examples are given to show that the presented method outperforms the other ones.
出处 《计算数学》 CSCD 北大核心 2017年第1期14-22,共9页 Mathematica Numerica Sinica
基金 国家自然科学基金项目(61472466 61603003) 中央高校基本科研业务费专项经费(JZ2015HGXJ0175) 安徽省自然科学基金(1608085MF144)
关键词 非线性方程组 牛顿迭代 求积公式 效率指数 收敛阶 Systems of nonlinear equations Newton's method Quadrature formulas Efficiency index Convergence order
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