clf clc % echo on global ALPHA ALPHA=4.5; x0=[0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65]'; tfinal=150; [t,x]=ode23(@medioeq,[0 tfinal],x0); y3=x(:,3); y8=x(:,8); l3=length(y3); l8=length(y8); yr3=y3(40:l3); yr8=y8(40:l8); plot(yr3,yr8,'b'); title('\alpha = 4.5'); xlabel('X3'); ylabel('X8'); axis([0 1.2 0.2 1.1]); % echo off % "Complex and Chaotic Nonlinear Dynamics. % Advances in Economics and Finance, % Mathematics and Statistics" % T.Vialar, Springer 2009. % Copyright(c)