Why i get different output?

n=-10:10;

g1=-2*(n<=-5);

g2=n.*(n==-4);

g3=n.*(n==-3);

g4=n.*(n==-2);

g5=n.*(n==-1);

g6=n.*(n==0);

g7=(4./n).*(n>=1);

G=g1+g2+g3+g4+g5+g6+g7;

subplot(3,2,1);

stem(n,G,'r','filled','linewidth',1)

xlabel('n');

ylabel('G[n]');

title ('G[n] against n');

this is my code. i suppose to get as below.

Answer 1

[Star Strider]

There may be better solutions, but the easiest way I can think of the avoid the NaN at 0 is simply to add eps to ‘n’ in the denominator of ‘g7’:

g7=(4./(n+eps)).*(n>=1);

since that is generating it.