File: %25r_r_r.sci

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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-en.txt

function s1=%r_r_r(s1,s2)
// %r_r_r(s1,s2) <=> s1/s2    for rationals
//!

[s1,s2]=sysconv(s1,s2),
[n,m]=size(s2('num'))
if n<>m then error(43),end
if n*m==1 then
  s1=%r_m_r(s1,rlist(s2('den'),s2('num'),s2('dt')) ),
else
 p=s2('num')
 s2=s2('den')
 for k=1:n
   pp=lcm(s2(:,k))
   for l=1:n;p(l,k)=p(l,k)*pdiv(pp,s2(l,k)),end
   s1(:,k)=s1(:,k)*pp
 end
 s1=s1*invr(p)
end
endfunction