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Ki=108.85;Kp=108.85;Ktm=0.012;Ktal=0.12;Kth=4.8;Kd=0.001;
M=0.21£»H=0.002
y0=zero(1,2*n+2)
y0(1,1)=0.0000045
y0(1,2)=0.00045
[t,y]=ode45(@mwd,tspan,y0)

function dydt=mwd(t,y)
global  Ki Kp Ktm Ktal Kth Kd M H n
ju=0;
for j=3:  (n+2)
     ju=ju+y(j);
end
mwd(1)=(Kth*H^0.5+Ktal*y(2)+Ktm*M+Kd)*ju-Ki*y(1)*M-Kd*y(1);                mwd(2)=-Ktal*y(2)*ju;                                                   
mwd(3)=Ki*y(1)*M-Kp*y(3)*M-(Kth*H^0.5+Ktal*y(2)+Ktm*M+Kd)*y(3);            
for k=4:  (n+2)
    mwd(k)=Kp*y(k-1)*M-Kp*y(k)*M-(Kth*H^0.5+Ktal*y(2)+Ktm*M+Kd)*y(k);   
end
for k=3:  (n+2)
    mwd(k+n)=(Kth*H^0.5+Ktal*y(2)+Ktm*M+Kd)*y(k);                          
end
dydt=mwd( : );

[ Last edited by gg0520 on 2009-9-18 at 15:37 ]
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