% EYE EYE Identity Matrix
% 
% Usage
% 
% Creates an identity matrix of the specified size.  The syntax for
% its use is
% 
%    y = eye(n)
% 
% where n is the size of the identity matrix.  The type of the 
% output matrix is float.
% Copyright (c) 2002-2005 Samit Basu
function I = eye(n)
I = diag(ones(1,n));