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

Figure 2

Solutions of Equation (24), the deterministic system which is obtained from applying the gHd concept. It is performed by 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 black-marked square states coordinate point .