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2012•Applied Mechanics and MaterialsOpen access

An Accelerated Iterative Method with Third-Order Convergence

Zhong Yong Hu, Liang Fang, Lian Zhong Li

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Abstract

We present a new modified Newton's method with third-order convergence and compare it with the Jarratt method, which is of fourth-order. Based on this new method, we obtain a family of Newton-type methods, which converge cubically. Numerical examples show that the presented method can compete with Newton's method and other known third-order modifications of Newton's method.

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What this paper is about

We present a new modified Newton's method with third-order convergence and compare it with the Jarratt method, which is of fourth-order. Based on this new method, we obtain a family of Newton-type methods, which converge cubically. Numerical examples show that the presented method can compete with Newton's method and other known third-order modifications of Newton's method.

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Available abstract

We present a new modified Newton's method with third-order convergence and compare it with the Jarratt method, which is of fourth-order. Based on this new method, we obtain a family of Newton-type methods, which converge cubically. Numerical examples show that the presented method can compete with Newton's method and other known third-order modifications of Newton's method.

Key concepts: Newton's method, Steffensen's method, Convergence (economics), Third order, Local convergence, Order (exchange), Newton's method in optimization, Mathematics

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