Part 1
% Periodic Signal with frequency 2*pi Hz. t=[0:0.001:40]; y=sin(t); plot(t,y); % Sampling Frequency 0.25 Hz t=[0:4:40]; y2 = sin(t); figure plot(t,y2);
File:Parta.jpg ECE301Fall2008mboutin
Part 2
t=[0:0.1:35];
y=cos(t)+cos(pi*t);
y4=y;
for k=0:10:20000
y2=cos(t-k)+cos(pi*(t-k));
y4=y4+y2;
end
plot(t,y); % non-periodic Signal
figure
plot(t,y4); % almost preiodic signal
