Kou, Jisheng; Li, Yitian An improvement of the Jarratt method. (English) Zbl 1122.65338 Appl. Math. Comput. 189, No. 2, 1816-1821 (2007). Summary: We present a variant of Jarratt method for solving non-linear equations. Per iteration the new method adds the evaluation of the function at another point in the procedure iterated by Jarratt method. As a consequence, the local order of convergence is improved from four for Jarratt method to six for the new method. The new multistep iteration scheme, based on the new method, is developed and numerical tests verifying the theory are also given. Cited in 4 ReviewsCited in 35 Documents MSC: 65H05 Numerical computation of solutions to single equations Keywords:Jarratt method; Newton method; non-linear equations; root-finding; iterative method; convergence; numerical tests PDF BibTeX XML Cite \textit{J. Kou} and \textit{Y. Li}, Appl. Math. Comput. 189, No. 2, 1816--1821 (2007; Zbl 1122.65338) Full Text: DOI References: [1] Ostrowski, A. M., Solutions of Equations and System of Equations (1960), Academic Press: Academic Press New York · Zbl 0115.11201 [2] Argyros, I. K.; Chen, D.; Qian, Q., The Jarratt method in Banach space setting, J. Comput. Appl. Math., 51, 103-106 (1994) · Zbl 0809.65054 [3] Grau, M.; Dı´az-Barrero, J. L., An improvement to Ostrowski root-finding method, Appl. Math. Comput., 173, 450-456 (2006) · Zbl 1090.65053 [4] Grau, M.; Noguera, M., A variant of Cauchy’s method with accelerated fifth-order convergence, Appl. Math. Lett., 17, 509-517 (2004) · Zbl 1070.65034 [5] Grau, M., An improvement to the computing of nonlinear equation solutions, Numer. Algorithms, 34, 1-12 (2003) · Zbl 1043.65071 [6] Grau, M.; Díaz-Barrero, J. L., An improvement of the Euler-Chebyshev iterative method, J. Math. Anal. Appl., 315, 1-7 (2006) · Zbl 1113.65048 [7] Kou, J.; Li, Y.; Wang, X., A family of fifth-order iterations composed of Newton and third-order methods, Appl. Math. Comput. (2006) [8] Kou, J.; Li, Y., The improvements of Chebyshev-Halley methods with fifth-order convergence, Appl. Math. Comput. (2006) [9] Kou, J.; Li, Y., Modified Chebyshev-Halley methods with sixth-order convergence, Appl. Math. Comput. (2006) [10] Weerakoon, S.; Fernando, T. G.I., A variant of Newton’s method with accelerated third-order convergence, Appl. Math. Lett., 13, 87-93 (2000) · Zbl 0973.65037 This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. It attempts to reflect the references listed in the original paper as accurately as possible without claiming the completeness or perfect precision of the matching.