// 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 s1=%r_l_r(s1,s2)
    // %r_l_r(s1,s2)   s1\s2
    //!
    [s1,s2]=sysconv(s1,s2)
    [n,m]=size(s1("den"))
    if n<>m then error(43),end
    if m*n==1 then
        s1=%r_m_r(rlist(s1("den"),s1("num"),s1("dt")),s2)
    else
        // reduction de s1 sous la forme D1**(-1)* N1 (D1 diagonale)
        p=s1("num")
        s1=s1("den")
        for l=1:n
            [pp,fact]=lcm(s1(l,:))
            p(l,:)=p(l,:).*fact
            s2(l,:)=s2(l,:)*pp
        end
        s1=invr(p)*s2,
    end
endfunction