Why is Zero teh result of division?

조회 수: 2 (최근 30일)
Erkan
Erkan 2021년 2월 8일
댓글: Alan Stevens 2021년 2월 9일
Hi every body, in my program, inside the for loop, results of many division operations (twe, teg and twg) on the command window are showing the zero, but this variable values are not showing the zero in the workspace (right values are showing in workspace).
Nw(1)=0; Ne(1)=0; Ng(1)=0;
Nw(2)=-2.3930e+47; Ne(2)=2.1796e+47; Ng(2)=2.1796e+46;
B2=314.1593;
B4= 314.1593;
Ges=15.6252;
Ggs=15.6252;
Nl=5;
Nd=10e11;
Aw=1.35e+10;
Cw=5e-9;
Ae=1.5e+10;
Ce=9e-8;
ue=4;
uw=10;
ug=2;
Pwleff =2.7037e+34;
Kb*T =0.0259
Length=2.45e-1;
Width=12e-4;
Ees=0.84;
Egs=0.792;
Ewl=1.05;
loop2=2;
for d=1:loop2
Pes(d)=(Ne(d)/(ue*Nd*Width*Length*Nl*Ges))
Pgs(d)=(Ng(d)/(ug*Nd*Width*Length*Nl*Ggs))
twe(d)=1/((Aw+(Cw*Nw(d)))*(1-Pes(d))*Ges)
teg(d)=1/((Ae+(Ce*Nw(d)))*(1-Pgs(d)))
twg(d)=1/((Aw+(Cw*Nw(d)))*(1-Pgs(d))*Ggs)
tge(d)=(teg(d)*(ug/ue)*(exp((Ees-Egs)/(Kb*T))))
tew(d)=(twe(d)*((ue*Nd*Nl)/Pwleff)*(exp((Ewl-Ees)/(Kb*T))))
tgw(d)=(twg(d)*((ug*Nd*Nl)/Pwleff)*(exp((Ewl-Egs)/(Kb*T))))
end

채택된 답변

Alan Stevens
Alan Stevens 2021년 2월 9일
편집: Alan Stevens 2021년 2월 9일
Type
format shorte
in the command window before running the code.
  댓글 수: 2
Erkan
Erkan 2021년 2월 9일
Thank you so much for answer, but the twe, teg and twg values in 3rd iteration of the loop become NaN. I don't understand what is the problem.
Alan Stevens
Alan Stevens 2021년 2월 9일
3rd iteration? You just be running a different version of the code from that listed originally.

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추가 답변 (1개)

Erkan
Erkan 2021년 2월 9일
again hi, actually, the number of iteration must be 3000, but to find the problem i try the small iteration numbers
  댓글 수: 1
Alan Stevens
Alan Stevens 2021년 2월 9일
You don't say what values you are using for Nw(3), Ne(3) and Ng(3).

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