can anybody tell me whats wrong with this program?

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MOUMITA
MOUMITA 2011-7-18
kn=1e-3;
vt=1.5;
vds=0:0.5:12;
vgs=4:2:8;
m=length(vds);
n=length(vgs);
for i=1:n
for j=1:m
if vgs(i) < vt
cur(i,j)=0;
elseif vds(j) >= (vgs(i) - vt)
cur(i,j)=kn * (vgs(i) - vt)^2;
elseif vds(j) < (vgs(i) - vt)
cur(i,j)= kn*(2*(vgs(i)-vt)*vds(j) - vds(j)^2);
end
end
end
plot(vds,cur(1,:),'w',vds,cur(2,:),'w',vds,cur(3,: ),'w')
xlabel('Vds, V')
ylabel('Drain Current,A')
title('I-V Characteristics of a MOSFET')
text(6, 0.009, 'Vgs = 4 V')
text(6, 0.023, 'Vgs = 6 V')
text(6, 0.045, 'Vgs = 8 V')
i m unable to run this program on MATLAB. its showing errors.
  2 个评论
Andreas Goser
Andreas Goser 2011-7-18
I can run this code without errors - looks like you should provide the error message...

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回答（1 个）

the cyclist
the cyclist 2011-7-18
The program runs fine for me.
In your plot command, you chose to plot all your lines in white, so they do not show up against the white plot background. Choose another plotting color.
  4 个评论
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the cyclist
the cyclist 2011-7-20
If this answer did, in fact, help resolve your issue, you should consider "accepting" it for the benefit of future readers.

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