Generating Root-Finder Iterative Methods of Second Order: Convergence and Stability

Author:

Chicharro Francisco I.ORCID,Cordero AliciaORCID,Garrido NeusORCID,Torregrosa Juan R.ORCID

Abstract

In this paper, a simple family of one-point iterative schemes for approximating the solutions of nonlinear equations, by using the procedure of weight functions, is derived. The convergence analysis is presented, showing the sufficient conditions for the weight function. Many known schemes are members of this family for particular choices of the weight function. The dynamical behavior of one of these choices is presented, analyzing the stability of the fixed points and the critical points of the rational function obtained when the iterative expression is applied on low degree polynomials. Several numerical tests are given to compare different elements of the proposed family on non-polynomial problems.

Funder

Generalitat Valenciana

Publisher

MDPI AG

Subject

Geometry and Topology,Logic,Mathematical Physics,Algebra and Number Theory,Analysis

Reference16 articles.

1. Multipoint Methods for Solving Nonlinear Equations;Petković,2013

2. Advances in Iterative Methods for Nonlinear Equations;Amat,2016

3. Solution of Equations and Systems of Equations;Ostrowski,1964

4. Optimal Order of One-Point and Multipoint Iteration

5. On efficient weighted-Newton methods for solving systems of nonlinear equations

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