Abstract
In this paper, we establish two new classes of derivative-involved methods for solving single valued nonlinear equations of the form f(x) = 0. The first contributed two-step class includes two evaluations of the function and one of its first derivative where its error analysis shows a fourth-order convergence. Next, we construct a three-step high-order class of methods including four evaluations per full cycle to achieve the seventh-order of convergence. Numerical examples are included to re-verify the theoretical results and moreover put on show the efficiency of the new methods from our classes.
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Soleymani, F., Mousavi, B.S. On novel classes of iterative methods for solving nonlinear equations. Comput. Math. and Math. Phys. 52, 203–210 (2012). https://doi.org/10.1134/S0965542512020133
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DOI: https://doi.org/10.1134/S0965542512020133
Keywords
- nonlinear equations
- weight function
- simple root
- efficiency index
- order of convergence
- multi-point methods