How Define Delta Function

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Kutlu Yigitturk
Kutlu Yigitturk on 24 Mar 2021
Commented: Kutlu Yigitturk on 24 Mar 2021
I have a problem about calculating with Delta Function. I am trying write matlab code for these function.
I wrote the following code for this function.
n = -5:1:7;
x = delta(n+1) - delta(n) + unit(n+1) - unit(n-2);
stem(n,x,'fill');
axis([-6 8 -1.5 1.5])
xlabel('n')
ylabel('x[n]')
grid
But I am getting the following error.
I don't now how can ı write the delta function in this way ,
function y = unit(x);
y = zeros(size(x));
y(x>0) = 1;
end
Can you help me write the delta function as the 'unit' function you see above? Thank you for your helping.

Accepted Answer

Star Strider
Star Strider on 24 Mar 2021
If you have the Symbolic Math Toolbox, use the dirac function. It can be used with non-symbolic arguments as well.
  4 Comments
Kutlu Yigitturk
Kutlu Yigitturk on 24 Mar 2021
Thank you for your help Mr. Roberson. I got the result I wanted.

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