# I have this for loop, and it seems to not end.

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Josiah Jarenee Comia 2021 年 5 月 13 日

for i=1:n
Phi1=1;
Phi2=1;
gamma1calc(i)=exp(alpha/(1+(alpha/beta)*(x1(i)/x2(i)))^2);
gamma2calc(i)=exp(beta/(1+(beta/alpha)*(x2(i)/x1(i)))^2);
Pcalc(i) = ((x1(i)*gamma1calc(i)*P1sat)/(Phi1))+((x2(i)*gamma2calc(i)*P2sat)/(Phi2));
AE1(i)=1;
while AE1(i) > 0.0001
y1calc(i) = (x1(i)*gamma1calc(i)*P1sat)/(Phi1);
y2calc(i) = 1-y1calc(i);
Phi1calc(i)=exp((B1.*(Pcalc(i)-P1sat)+Pcalc(i).*y2calc(i).^2.*(2.*B12-B1-B2))./(R*T));
Phi2calc(i)=exp((B2.*(Pcalc(i)-P2sat)+Pcalc(i).*y1calc(i).^2.*(2.*B12-B1-B2))./(R*T));
Pnew(i) = ((x1(i)*gamma1calc(i)*P1sat)/Phi1calc(i))+((x2(i)*gamma2calc(i)*P2sat)/Phi2calc(i));
AE2 (i)=abs(Pnew(i)-Pcalc(i));
if AE2(i) > 0.0001
Pcalc(i)=Pnew(i);
end
end
Pcalc(i)=Pnew(i);
end
##### 3 件のコメント表示 2 件の古いコメント非表示 2 件の古いコメント
Stephen23 2021 年 5 月 13 日
"This should work right?"
You did not describe the intended algorithm, so I have no way to check if it is implemented correctly or should "work".
"I mean the loop structure is correct and all right?"
That looks like the correct syntax for a WHILE loop.

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### 回答 (1 件)

Pranav Verma 2021 年 5 月 17 日

Hi Josiah,
I would recommend you to print out the value of AE1(i) inside the loop along with appropriate messages. This will allow you to watch the value of AE1(i) and debug the code easily.
You can use disp function to print out the value and messages.
Thanks

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