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what is the problem of my code it say when i run the code it show me Error in stop4 (line 17) semilogy(x,k)

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a=0.0001;
l=0.003;
eo=8.85e-14;
er=11.9;
es=eo*er;
q=1.6e-19;
f=550:1650;
p=1./power(2*pi*f,2);
c=p./1;
xd=(a*es)./c;
xd1=power(xd,1.5);
l1=power(1,0.5);
a1=power(a,0.5);
es1=power(es,0.5);
k=4*pi*xd1*q*l1*q*a1*2.2*power(10,5);
nd=es1./k;
semilogy(x,k)
xlabel('xd');
ylabel('nd');
hold on % <— ADD ‘hold’
plot(x,log10(k));

Answers (3)

Kidist Getu
Kidist Getu on 14 Oct 2016
Edited: Walter Roberson on 15 Oct 2016
I also attached the program if ti helps

Wayne King
Wayne King on 14 Oct 2016
Edited: Wayne King on 14 Oct 2016
Hi, you should always format your code so people can read it easier. I have formatted it for you.
You do not provide us with the x variable in your code above so we cannot diagnose the problem.
You should also report the error message you are getting.

Walter Roberson
Walter Roberson on 15 Oct 2016
Your line
semilogy(x,k)
should be
semilogy(xd,k)
Your line
plot(x,log10(k));
should be
plot(xd,log10(k));

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