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//Example 5.9
//Continuous Time Fourier Transforms of cos(Wot)
clc;
close;
//CTFT
T1=2;
T=4*T1;
Wo=2*%pi/T;
W=[-Wo,0,Wo];
ak=(2*%pi*Wo*T1/%pi);
XW1=[-ak,0,ak];
figure
a = gca();
a.y_location="origin";
a.x_location="origin";
plot2d3('gnn',W,XW1,2);
poly1 = a.children(1).children(1);
poly1.thickness=3;
xlabel('W');
title('CTFT of cos(Wot)')
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