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    %ABS    Absolute value.
%   ABS(X) is the absolute value of the elements of X. When
%   X is complex, ABS(X) is the complex modulus (magnitude) of
%   the elements of X.
%
%   See also SIGN, ANGLE, UNWRAP, HYPOT.

%   Copyright 1984-2005 The MathWorks, Inc.
%   Built-in function.