کد:
for t=0:10
syms x1(t) x2(t) x3(t) x4(t)
u=0;
uf=0;
x1(0)=1;
x2(0)=0.5;
x3(0)=1;
x4(0)=0;
delta=0.001;
x1(t+1)=delta*(-x1(t)+x2(t)+(2*u)+(2*uf)+(0.152*sin(x1(t)+x3(t)))+(0.5*0.6*sin(60*t)))+x1(t);
x2(t+1)=delta*((-2*x2(t))+u+uf+(0.152*sin(x1(t)-x3(t)))-(0.6*sin(60*t)))+x2(t);
x3(t+1)=delta*(-x3(t)+(2*u)+(2*uf))+x3(t);
x4(t+1)=delta*(-x4(t))+x4(t);
figure(1)
plot(x1,'b','LineWidth',2)
hold on
grid on
figure(2)
plot(x2,'b','LineWidth',2)
hold on
grid on
figure(3)
plot(x3,'b','LineWidth',2)
hold on
grid on
figure(4)
plot(x4,'b','LineWidth',2)
hold on
grid on
end
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