How to use k_delta function



Hello:
I have been using Macsyma 2.2 for nearly three years.
There is a k_delta function which I used extensively
in my programming but I found that it does not
work in Maxima.  k_delta or kronecker delta
worked in Macsyma as follows:

k_delta(1,1); 1
k_delta(1,0); 0

There is a kdelta in the Maxima documentation, but I could
not get it to work.  Is there anyone who knows to
to get this function working?

HuenYeongKong
www.cahresearch.com