How to update new value in next iteration?

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 commentaire

Walter Roberson
Walter Roberson le 26 Mai 2013
Yes, that is what you programmed, that the iterations will end when that condition holds.

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 Réponse acceptée

Walter Roberson
Walter Roberson le 26 Mai 2013
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"

Plus de réponses (2)

Artur M. G. Lourenço
Artur M. G. Lourenço le 26 Mai 2013

0 votes

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

1 commentaire

Jan
Jan le 26 Mai 2013
Please learn how for format code - follow the "? Help" link. Thanks.

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Light
Light le 26 Mai 2013

0 votes

Thank you very much!! I put it wrong place :-)

3 commentaires

Image Analyst
Image Analyst le 26 Mai 2013
Modifié(e) : Image Analyst le 27 Mai 2013
You put even this response in the wrong place too! I'm pretty sure this response should have been a "Comment" to someone rather than a new "Answer" to your original question.
Light
Light le 27 Mai 2013
Modifié(e) : Light le 27 Mai 2013
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
Y=U1t-U1;
H=U2t-U2;
U1= U1t;
U2= U2t;
if max(Y,H)<zoruu;
break; end; end

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