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
اخه چه فرقی میکنه سیستم که یکیه؟
میشه لطفا در رفع ارور این برنامه کمکم کنین؟
./ diff(t) a 
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