MATLAB: Is it correct? (dirac delta function)

stem

Hi. I want to stem this function,

and this is my code.

i wonder it is correct.

no it should be 2*(n==0)

However there is another sense in which dirac(x) should be infinite when x is 0 instead being 1.

I fixed the problem using the geometrical series convergence for specified Z values.

syms n 
a=2;
z1=5;
z2=10;
antwoord4_1=double(symsum(a^(2*n)/z1^(2*n),0,Inf))
antwoord4_1=double(symsum(a^(2*n)/z2^(2*n),0,Inf))

   function A= matrixfn(m,n)
  A = zeros(m,n) ;
  for i=1:m
      for j=1:n
          A(i,j)=i^2 + j^2;
      end
  end

Save the above function in a folder. Go to that folder in MATLAB. And you can call it by:

A = matrixfun(2,2) ;
B = matrixfun(5,5) ;
C = matrixfun(6,9) ;