function a = mag(a)
%MAG          Absolute value for non-intervals, same as abs (for completeness)
%
%  c = mag(a);
%
%Replaces abss. Thanks to Arnold for pointing to better name.
%

% written  01/04/05     S.M. Rump
% modified 04/06/05     S.M. Rump  rounding unchanged
%

  a = abs(a);
