function Y = imag(Z)
%IMAG   Symbolic imaginary part.
%   IMAG(Z) is the imaginary part of a symbolic Z.
    
%   Copyright (c) 1993-98 by The MathWorks, Inc.
%   $Revision: 1.3 $  $Date: 1997/11/29 01:05:43 $

Y = (Z - maple('map','conjugate',Z))/2i;
