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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) INRIA -
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
function [t]=equil(p,q)
t=chol(q);
[u,s,u]=svd(t*p*t');
s=diag(s);
ll=ones(s)./sqrt(sqrt(s));
t=diag(ll)*u'*t
endfunction
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