Developing an Optimal Class of Generic Sixteenth-Order Simple-Root Finders and Investigating Their Dynamics

Young Hee Geum, Young Ik Kim and Beny Neta
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Young Hee Geum: Department of Applied Mathematics, Dankook University, Cheonan 330-714, Korea
Young Ik Kim: Department of Applied Mathematics, Dankook University, Cheonan 330-714, Korea
Beny Neta: Naval Postgraduate School, Department of Applied Mathematics, Monterey, CA 93943, USA

Mathematics, 2018, vol. 7, issue 1, 1-32

Abstract: Developed here are sixteenth-order simple-root-finding optimal methods with generic weight functions. Their numerical and dynamical aspects are investigated with the establishment of a main theorem describing the desired optimal convergence. Special cases with polynomial and rational weight functions have been extensively studied for applications to real-world problems. A number of computational experiments clearly support the underlying theory on the local convergence of the proposed methods. In addition, to investigate the relevant global convergence, we focus on the dynamics of the developed methods, as well as other known methods through the visual description of attraction basins. Finally, we summarized the results, discussion, conclusion, and future work.

Keywords: sixteenth-order optimal convergence; weight function; asymptotic error constant; global convergence; purely imaginary extraneous fixed point; attractor basin (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2018
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