function sum = mySum(a,b)
%mySum add a and b and return the result
%
% consumes: a and b, scalar numbers
% produces: sum, the sum of a and b, a scalar number
%
% example:
%    >> mySum(3,4)
%    ans = 
%          7
%    >>
%
%P.Conrad CISC106 Fall 2006  10/18/2006

  sum = a + b;
  return;
end