Ahmadian, AliSalahshour, SoheilChan, Chee SengBaleanu, Dumitru2020-04-122020-04-1220180165-0114http://hdl.handle.net/20.500.12416/3078In this paper, an extended fourth-order Runge-Kutta method is studied to approximate the solutions of first-order fuzzy differential equations using a generalized characterization theorem. In this method, new parameters are utilized in order to enhance the order of accuracy of the solutions using evaluations of both f and f', instead of using the evaluations of f only. The proposed extended Runge-Kutta method and its error analysis, which guarantees pointwise convergence, are given in detail. Furthermore, the accuracy and efficiency of the proposed method are demonstrated in a series of numerical experiments. (C) 2016 Elsevier B.V. All rights reserved.eninfo:eu-repo/semantics/closedAccessFuzzy Ordinary Differential EquationsFuzzy DifferentiabilityArticle331476710.1016/j.fss.2016.11.013