Interval methods with fifth order of convergence for solving nonlinear scalar equations. (English) Zbl 1432.65058

Summary: In this paper, based on Kou’s classical iterative methods with fifth-order of convergence, we propose new interval iterative methods for computing a real root of the nonlinear scalar equations. Some numerical experiments have executed with the program INTLAB in order to confirm the theoretical results. The computational results have described and compared with Newton’s interval method, Ostrowski’s interval method and Ostrowski’s modified interval method. We conclude that the proposed interval schemes are effective and they are comparable to the classical interval methods.


65H04 Numerical computation of roots of polynomial equations
65H05 Numerical computation of solutions to single equations


INTLAB; Matlab
Full Text: DOI


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