Program for Addition & Subtraction of two signals

Here is a program of MAT LAB for addition & subtraction of two signals 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=0:0.005:n;
f=1;


x=sin(2*pi*f*t);
y=cos(2*pi*f*t);
z=x+y;
z1=x-y;


subplot(321);
plot(t,x);
ylabel('amp.');
xlabel('time');
title('cont. sine wave');


subplot(322);
plot(t,y);

ylabel('amp.');
xlabel('time');
title('cont. cosine wave');


subplot(323);
plot(t,z);
ylabel('amp.');
xlabel('time');
title('cont. addition wave');


subplot(324);
plot(t,z1);
ylabel('amp.');
xlabel('time');
title('cont. subtraction wave');


subplot(325);
stem(t,z);
ylabel('amp.');
xlabel('time');
title('dis. addition wave');


subplot(326);
stem(t,z1);
ylabel('amp.');
xlabel('time');
title('dis. subtraction wave');

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

Output :-

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