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clc;
//page 18
//problem 1.4
//u1(t)
t = [-5:0.0082:5];
u1(t<=0) = 0;
u1(t>0) = 1;
xlabel('t');
ylabel('u(t)')
subplot(131);
plot2d(t,u1);
//u2(t-T)
//Shifting the given signal by t units to the right, we get
//Let us assume the amount of time to be shited is 3 units
T = 3;
t = [-5:0.0082:5];
u2(t<=T) = 0;
u2(t>T) = 1;
xlabel('t');
ylabel('u(t-T)')
subplot(132);
plot2d(t,u2);
//u(t) - u(t - T)
t = [-5:0.0082:5];
u3 = u1 - u2;
xlabel('t');
ylabel('u(t) - u(t-T)')
subplot(133);
plot2d(t,u3);
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