Symmetry (Jun 2019)

Efficient Three-Step Class of Eighth-Order Multiple Root Solvers and Their Dynamics

  • R. A. Alharbey,
  • Munish Kansal,
  • Ramandeep Behl,
  • J. A. Tenreiro Machado

DOI
https://doi.org/10.3390/sym11070837
Journal volume & issue
Vol. 11, no. 7
p. 837

Abstract

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This article proposes a wide general class of optimal eighth-order techniques for approximating multiple zeros of scalar nonlinear equations. The new strategy adopts a weight function with an approach involving the function-to-function ratio. An extensive convergence analysis is performed for the eighth-order convergence of the algorithm. It is verified that some of the existing techniques are special cases of the new scheme. The algorithms are tested in several real-life problems to check their accuracy and applicability. The results of the dynamical study confirm that the new methods are more stable and accurate than the existing schemes.

Keywords