Dynamical Control of Computations Using the Family of Optimal Two-point Methods to Solve Nonlinear Equations
محل انتشار: مجله بین المللی ریاضیات صنعتی، دوره: 9، شماره: 2
سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 26
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شناسه ملی سند علمی:
JR_IJIM-9-2_006
تاریخ نمایه سازی: 27 دی 1402
چکیده مقاله:
One of the considerable discussions for solving the nonlinear equations is to find the optimal iteration, and to use a proper termination criterion which is able to obtain a high accuracy for the numerical solution. In this paper, for a certain class of the family of optimal two-point methods, we propose a new scheme based on the stochastic arithmetic to find the optimal number of iterations in the given iterative solution and obtain the optimal solution with its accuracy. For this purpose, a theorem is proved to illustrate the accuracy of the iterative method and the CESTAC^۱\footnote{^۱Controle et Estimation Stochastique des Arrondis de Calculs} method and CADNA^۲\footnote{^۲Control of Accuracy and Debugging for Numerical Application} library are applied which allows us to estimate the round-off error effect on any computed result. The classical criterion to terminate the iterative procedure is replaced by a criterion independent of the given accuracy (\epsilon) such that the best solution is evaluated numerically, which is able to stop the process as soon as a satisfactory informatical solution is obtained. Some numerical examples are given to validate the results and show the efficiency and importance of using the stochastic arithmetic in place of the floating-point arithmetic.
کلیدواژه ها:
نویسندگان
M. A. Fariborzi Araghi
Department of Mathematics, Central Tehran Branch, Islamic Azad University, Tehran, Iran
E. Zarei
Department of Mathematics, Hamedan Branch, Islamic Azad University, Hamedan, Iran.