A family of Steffensen type methods with seventh‐order convergence

A family of Steffensen type methods with seventh‐order convergence

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Article ID: iaor20132004
Volume: 62
Issue: 3
Start Page Number: 429
End Page Number: 444
Publication Date: Mar 2013
Journal: Numerical Algorithms
Authors: ,
Abstract:

In this paper, based on some known fourth‐order Steffensen type methods, we present a family of three‐step seventh‐order Steffensen type iterative methods for solving nonlinear equations and nonlinear systems. For nonlinear systems, a development of the inverse first‐order divided difference operator for multivariable function is applied to prove the order of convergence of the new methods. Numerical experiments with comparison to some existing methods are provided to support the underlying theory.

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