// 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 b=%s_l_r(a,b)
    // a\b a scalar matrix, b rational matrix
    //!
    if  size(a,"*")==0  then b=[],return,end
    if size(a,1)==-1 then a=a+0,end

    [ma,na]=size(a);
    if ma==1&na==1 then
        b.num=a\b.num,
    elseif size(b.num,1)==1 then
        b=rlist(a\b.num,ones(na,ma)*b.den,b.dt)
    else
        [num,den]=b(["num","den"]);

        dd=[];nn=[]
        for j=1:size(num,2)
            [y,fact]=lcm(den(:,j)),
            nn=[nn,a\(num(:,j).*fact)];
            dd=[dd y]
        end
        [num,den]=simp(nn,ones(na,1)*dd)
        b=rlist(num,den,b.dt)
    end
endfunction