Unable to see Graph

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SARVESH AGRAWAL
SARVESH AGRAWAL 2017-11-1
评论： SARVESH AGRAWAL 2017-11-2
Hi,
Following is the code of sinc function which I am trying to plot. However, I do not see anything. Any help will be appreciated.
h=5;
lambda=h;
beta=2*pi/lambda;
for theta=0:0.01:2*pi
T=abs(sinc(beta*h*cos(theta)));
% T=sin(beta*h*cos(theta))/(beta*h*cos(theta));
polarplot(theta,T);
hold on;
end

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采纳的回答

Eric
Eric 2017-11-1
Instead of using a for loop, take advantage of matlab's ability to work with vectors (don't forget the element-wise period for T2):
h=5; lambda=h; beta=2*pi/lambda;
theta=0:0.01:2*pi;
T1=abs(sinc(beta.*h.*cos(theta)));
T2=sin(beta.*h.*cos(theta))./(beta.*h.*cos(theta));
polarplot(theta,T1);
hold on;
polarplot(theta,T2);

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