Three-step iterative methods with optimal eighth-order convergence

نویسندگان

  • Alicia Cordero
  • Juan R. Torregrosa
  • María P. Vassileva
چکیده

In this paper, based on Ostrowski’s method, a new family of eighth-order methods for solving nonlinear equations is derived. In terms of computational cost, each iteration of these methods requires three evaluations of the function and one evaluation of its first derivative, so that their efficiency indices are 1.682, which is optimal according to Kung and Traub’s conjecture. Numerical comparisons are made to show the performance of the new family.

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عنوان ژورنال:
  • J. Computational Applied Mathematics

دوره 235  شماره 

صفحات  -

تاریخ انتشار 2011