function out = norm2(in)%NORM2 Squared norm%   Y = NORM2(X) returns squared norm of vector X; Y = ||X||^2.%%   D = NORM2(X-Y) is mostly used to evaluate minimum squared distance%   between two vectors X and Y; D = ||X - Y||^2.%%   See also NORM.%   Copyright 2001-2003 Kamil Anis, anisk@feld.cvut.cz%   Dept. of Radioelectronics, %   Faculty of Electrical Engineering%   Czech Technical University in Prague%   $Revision: 0.1 $  $Date: 2003/1/16 17:33:28 $%   --%   <additional stuff goes here>out = sum(abs(in).^2);