“…The concept of a fuzzy derivative was first introduced by Chang and Zadeh [10], and followed by Dubois and Prade [14], who defined and used the extension principle. The fuzzy differential equation and the fuzzy initial value problem were defined by Nieto and Rodriguez-Lopez [25], Seikkala [32], and many other researchers [3,7,9,[11][12][13]16,18,19,21,23,24,[26][27][28][29][30][31]34,35]. Numerical methods for solving FDEs are introduced in [1,2,5,6,17,22].…”