KroneckerDelta in matlab

Question

This link shows that there is a kronecker delta function in matlab. However:

>> help kroneckerDelta

    kroneckerDelta not found

I am u

Answer 1

I don't see it in my R2012b so perhaps not. Unless you need the symbolic math, you could always write your own. Something as simple as

function d = kronDel(j,k)

if j == k
    d = 1;
else
    d = 0;
end