graph won't appear

Question

Gianne Ong 2021-5-13

评论： Daniele Sonaglioni 2021-5-20

>> zi = 0.2; % define the value of damping coefficient

>> r = 0:0.05:10; % define the range of r

>> for i = 1; % length(r)

>> T(i) = sqrt(1+(4*(zi^2)*(r(i)^2))) / sqrt(((1-r(i)^2)^2)+(4*(zi^2)*(r(i)^2)));

>> end

>> plot (r,T); % plot T vs r

Answer 1

Try this code. You have forgotten to specifay the indices in the for cicle

zi = 0.2; % define the value of damping coefficient

r = 0:0.05:10; % define the range of r

for i = 1:length(r); % length(r)

T(i) = sqrt(1+(4*(zi^2)*(r(i)^2))) / sqrt(((1-r(i)^2)^2)+(4*(zi^2)*(r(i)^2)));

end

plot (r,T); % plot T vs r

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