Program for elementary signals

Here is a program of MAT LAB for displaying elementary signals like sine and cosine waves in continuous and discreet form.

open MAT LAB open new script and paste this program :-

Program :-
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n=input('enter the value of n=');
t=0:0.02:n;
f=1;
x=sin(2*pi*f*t);
subplot(221);
plot(t,x);
ylabel('amp.');
xlabel('time');
title('cont. sine wave');


subplot(222);
stem(t,x);
xlabel('time');
ylabel('amp.');
title('dis. sine wave');

y=cos(2*pi*f*t);
subplot(223);
plot(t,y);
xlabel('time');
ylabel('amp.');
title('cont. cosine wave');

subplot(224);
stem(t,y);
xlabel('time');
ylabel('amp.');
title('dis. cosine wave');

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just paste the program, press run, enter the value of 'n' (numerical). get output :-

Output :-

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