Abstract
Under the assumption that the nonlinear operator has Lipschitz continuous divided differences for the first order, we obtain an estimate of the radius of the convergence ball for the two-step secant method. Moreover, we also provide an error estimate that matches the convergence order of the two-step secant method. At last, we give an application of the proposed theorem.
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This work is supported by National Natural Science Foundation of China (11771393, 11371320, 11632015), Zhejiang Natural Science Foundation (LZ14A010002, LQ18A010008) and Scientific Research Fund of Zhejiang Provincial Education Department (FX2016073).
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Lin, Rf., Wu, Qb., Chen, Mh. et al. The convergence ball and error analysis of the two-step Secant method. Appl. Math. J. Chin. Univ. 32, 397–406 (2017). https://doi.org/10.1007/s11766-017-3487-3
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DOI: https://doi.org/10.1007/s11766-017-3487-3