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while plotting the graph ,it appears blank. How to solve this problem?

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Isha Deshpande
Isha Deshpande 2012-4-26
My code is as below
f=[1,2,3,4,5,6,7,8,9,10];
l=length(f);
for i=1:l
t=1/0.4521;
z=3.68*10^(-7)*(t)^(1/2)*(2*3.14*f(i))^0.5;
plot(f(i),z);
end

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采纳的回答

Thomas
Thomas 2012-4-26
Try saving z as a vector and plotting it outside the loop..
f=[1,2,3,4,5,6,7,8,9,10];
t=1/0.4521;
l=length(f);
for i=1:l
z(i)=3.68*10^(-7)*(t)^(1/2)*(2*3.14*f(i))^0.5;
end
plot(f,z);
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显示 2更早的评论
Isha Deshpande
Isha Deshpande 2012-4-28
Hi Thomas, thanks for solving my issue
i am getting graph properly, my code now looks as below
{f=1:100;
t=1/0.4521;
for i=1:100
z(i)=(3.68*10^(-7)*(t)^(1/2)*(2*3.14*f(i))^0.5);
end
loglog(f,z)}
Walter Roberson
Walter Roberson 2012-4-28
You should be able to simplify the code by eliminating the loop and using
z = 3.68E-7 * sqrt(t) * sqrt(2 * pi) * sqrt(f);
or if you want to reduce sqrt() calls,
z = 3.68E-7 * sqrt(2 * pi * t * f);

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