function [w] = minus(u,v)
% MINUS - Vector subtraction in LASE.
% function [w] = minus(u,v)

% WRITTEN BY       : Kenth Engų, 1998.01.27
% LAST MODIFIED BY : Kenth Engų, 1999.04.12

global DMARGCHK

if DMARGCHK
  if u.shape ~= v.shape,
    error('Arguments are not of same shape!');
  end;
end;

w = u;
w.data{1} = u.data{1} - v.data{1};
w.data{2} = u.data{2} - v.data{2};
return;



