How to update new value in next iteration?

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Light
Light 2013-5-26
How can i update that (ending value) U1t or U2t in next iteration.
U1t and U2t will be changed U1 and U2
(1st iteration ending value -> 2nd iteration starting value).
S12t=6+2*1i;
S01t=10+5*1i;
U1=110;
U2=110;
R12 = 16.2+24*1i;
U0i=115;
R01= 15.75+31.2*1i;
dx01=106.125;
dx12=81;
U20=10;
zoruu=0.01;
iteration_number = 0;
while true
iteration_number = iteration_number + 1;
fprintf('Starting iteration #%d\n', iteration_number);
dQ12=dx12*U2.^2*10.^-6;
S12i=S12t-complex(0,dQ12);
DS12 =((real(S12i).^2+imag(S12i).^2)/U2.^2)*R12;
S12ii=DS12+S12i;
S12e=S12ii-complex(0,dQ12);
S01i=S12e+S01t;
dQ01=dx01*U1.^2*10.^-6;
S01ii=S01i-complex(0,dQ01);
DS01=((real(S01ii).^2+imag(S01ii).^2)/U1.^2)*R01;
dQ01i=dx01*U0i.^2*10.^-6;
S01ii2=S01ii+DS01;
S01iii=S01ii2-complex(0,dQ01i);
dU01i=(real(S01ii2)*real(R01)+imag(S01ii2)*imag(R01))./U0i;
dU01ii=(real(S01ii2)*imag(R01)-imag(S01ii2)*real(R01))./U0i;
U1t=sqrt((U0i-dU01i).^2+dU01ii.^2);
dU12i=(real(S12ii)*real(R12)+imag(S12ii)*imag(R12))./U1t;
dU12ii=(real(S12ii)*imag(R12)-imag(S12ii)*real(R12))./U1t;
U2t=sqrt((U1t-dU12i).^2+dU12ii.^2);
Y=U1t-U1;
H=U2t-U2;
if max(Y,H)<zoruu;
break;
end;
end
Iteration must end when max(Y,H)<0.01
Thank you
  1 个评论
Walter Roberson
Walter Roberson 2013-5-26
Yes, that is what you programmed, that the iterations will end when that condition holds.

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采纳的回答

Walter Roberson
Walter Roberson 2013-5-26
After the assignment to H, assign
U1 = U1t;
U2 = U2t;
Unless, that is, you need the U1 value to be unchanged if the iteration should stop. If that is the case, put those two statements after the "end" for the "if"

更多回答（2 个）

Artur M. G. Lourenço
Sorry if I misunderstood. It would be just that?
S12t=6+2*1i;
S01t=10+5*1i;
U1=110;
U2=110;
R12 = 16.2+24*1i;
U0i=115;
R01= 15.75+31.2*1i;
dx01=106.125;
dx12=81;
U20=10;
zoruu=0.01;
iteration_number = 0;
while true
iteration_number = iteration_number + 1;
fprintf('Starting iteration #%d\n', iteration_number);
dQ12=dx12*U2.^2*10.^-6;
S12i=S12t-complex(0,dQ12);
DS12 =((real(S12i).^2+imag(S12i).^2)/U2.^2)*R12;
S12ii=DS12+S12i;
S12e=S12ii-complex(0,dQ12);
S01i=S12e+S01t;
dQ01=dx01*U1.^2*10.^-6;
S01ii=S01i-complex(0,dQ01);
DS01=((real(S01ii).^2+imag(S01ii).^2)/U1.^2)*R01;
dQ01i=dx01*U0i.^2*10.^-6;
S01ii2=S01ii+DS01;
S01iii=S01ii2-complex(0,dQ01i);
dU01i=(real(S01ii2)*real(R01)+imag(S01ii2)*imag(R01))./U0i;
dU01ii=(real(S01ii2)*imag(R01)-imag(S01ii2)*real(R01))./U0i;
U1t=sqrt((U0i-dU01i).^2+dU01ii.^2);
dU12i=(real(S12ii)*real(R12)+imag(S12ii)*imag(R12))./U1t;
dU12ii=(real(S12ii)*imag(R12)-imag(S12ii)*real(R12))./U1t;
U2t=sqrt((U1t-dU12i).^2+dU12ii.^2);
Y=U1t-U1;
H=U2t-U2;
U1= U1t;
U2= U2t;
if max(Y,H)<zoruu;
break; end; end
Light
Light 2013-5-26
Thank you very much!! I put it wrong place :-)
  3 个评论
显示 1更早的评论
Light
Light 2013-5-27
编辑：Light 2013-5-27
Really? Walter Robinson Please tell me. Where can i put this (U1=U1t, U2=U2t)
Is that right??
....
....
Y=U1t-U1;
H=U2t-U2;
if max(Y,H)<zoruu; break; end;
U1= U1t;
U2= U2t; end
Artur M. G. Lourenço
Artur M. G. Lourenço 2013-5-27
Y=U1t-U1;
H=U2t-U2;
U1= U1t;
U2= U2t;
if max(Y,H)<zoruu;
break; end; end

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