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Revista Colombiana de Matemáticas
Print version ISSN 0034-7426
Abstract
ARGYRIS, Ioannis K. and GEORGE, Santhosh. Ball convergence theorem for a Steffensen-type third-order method. Rev.colomb.mat. [online]. 2017, vol.51, n.1, pp.1-14. ISSN 0034-7426. https://doi.org/10.15446/recolma.v51n1.66831.
We present a local convergence analysis for a family of Steffensen-type third-order methods in order to approximate a solution of a nonlinear equation. We use hypothesis up to the first derivative in contrast to earlier studies such as [2,4,6,7,8,9,10,11,12,13,14,15,17,16,18,19,20,21,22,23,24,25,26,27,28] using hypotheses up to the fourth derivative. This way the applicability of these methods is extended under weaker hypothesis. Moreover the radius of convergence and computable error bounds on the distances involved are also given in this study. Numerical examples are also presented in this study.
Keywords : Steffensen's method; Newton's method; order of convergence; local convergence.