The basins of attraction of Murakami's fifth order family of methods
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In this paper we analyze Murakami’s family of fifth order methods for the solution of nonlinear equations. We show how to find the best performer by using a measure of closeness of the extraneous fixed points to the imaginary axis. We demonstrate the performance of these members as compared to the two members originally suggested by Murakami. We found several members for which the extraneous fixed points are on the imaginary axis, only one of these has 6 such points (compared to 8 for the other members). We show that this member is the best performer.
The article of record as published may be found at http://dx.doi.org/10.1016/j.apnum.2016.07.012
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