// 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 h=%s_v_r(h1,h2)
    // %s_v_r(h1,h2) = (I+h1*h2)\h1. h1 constant h2 rational
    //!

    [m1,n1]=size(h1)
    [m2,n2]=size(h2("num"))
    if abs(n1-m2)+abs(m1-n2)<>0 then error(msprintf(_("%s: Wrong size for input argument(s).\n"),"%s_v_r")),end
    if m1*n1==1 then
        h=h2;h("num")=h1*h2("den");h("den")=h1*h2("num")+h2("den");
    else
        h=(eye(m1,m1)+h1*h2)\h1
    end
endfunction