Parameter Estimations of Fuzzy Forced Duffing Equation: Numerical Performances by the Extended Runge-Kutta Method

Figure 3

Graphs of Equation (30), i.e., the deterministic system which is obtained from applying the FDI concept. It is performed by solving Equation (29) using the extended RK method with the parameters which are in Equation (27) and the initial values which are in Equation (28). For (a) and (b), similar information as in Figures 1(a) and 1(b) are applied, except in (b), the dotted line states equation .