function a = randint(m,n,a,b)
% RANDINT Randomly generated integral matrix
%	randint(m,n) returns an m-by-n matrix with entries between
%	0 and 9.
%	randint(m,n,a,b) returns entries between a and b.
if nargin < 3, a = 0; b = 9; end
a = floor((b-a+1)*rand(m,n))+ a;
