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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 f=%r_a_p(f,m)
//f = f+m,
//f: transfer matrix, m : polynomial matrix
//author Serge Steer INRIA
//!
[num,den]=f(["num","den"])
szf=size(den)
szm=size(m)
if and(szf>=0)&and(szm>=0) then
if prod(szf)==1&prod(szm)>1 then
den=den(ones(m))
szf=szm
end
if size(szf,"*")>2 then
num=num(:);den=den(:);m=m(:)
end
[num,den]=simp(num+m.*den,den)
num=matrix(num,szf)
den=matrix(den,szf)
else
//at leat one matrix is eye*x
if size(szf,"*")>2|size(szm,"*")>2 then
error(8)
end
if or(szf<0)&or(szm<0) then
[num,den]=simp(num+m.*den,den)
elseif or(szf<0) then
[num,den]=simp(num+m.*den,den*ones(m))
elseif or(szm<0) then
[num,den]=simp(num+(m+0)*eye(den).*den,den)
end
end
f=rlist(num,den,f.dt)
endfunction
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