clc;
clear all;
n=-10:10;
%unit impulse
impulse=(n==0);
subplot(3,2,1);
stem(n,impulse);
title('unit impulse');
xlabel('n');
ylabel('dell(n)');
%unit step
step=(n>=0);
subplot(3,2,2);
stem(n,step);
title('unit step signal');
xlabel('n');
ylabel('u(n)');
%ramp
ramp=n.*(n>=0);
subplot(3,2,3);
stem(n,ramp);
title('ramp signal');
xlabel('n');
ylabel('r(n)');
%exponential
a=0.8;
exp_signal=(a.^n).*(n>=0);
subplot(3,2,4);
stem(n,exp_signal);
title('exponential signal');
xlabel('n');
ylabel('a^nu(n)');
%sinusodial
omega=pi/4;
sinusodial=sin(omega*n);
subplot(3,2,5);
stem(n,sinusodial);
title('sinusodial signal');
xlabel('n');
ylabel('sin(wn)');

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