Figure 8From: On the solutions of some nonlinear systems of difference equations This figure shows the periodic nature of the solutions of system ( 7 ), where the initial conditions x − 2 =9 , x − 1 =−7 , x 0 =0.4 , y − 2 =5 , y − 1 =8 and y 0 =−2/9 . Back to article page