83 lines
1.7 KiB
C++
83 lines
1.7 KiB
C++
/*
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* Copyright © 2004-2011 Ondra Kamenik
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* Copyright © 2019 Dynare Team
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*
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* This file is part of Dynare.
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*
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* Dynare is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Dynare is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Dynare. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef SCHUR_DECOMP_H
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#define SCHUR_DECOMP_H
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#include "SylvMatrix.hh"
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#include "QuasiTriangular.hh"
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#include <memory>
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class QuasiTriangular;
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class SchurDecomp
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{
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SqSylvMatrix q;
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// Stores t if is owned
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std::unique_ptr<QuasiTriangular> t_storage;
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QuasiTriangular *t;
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public:
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SchurDecomp(const SqSylvMatrix &m);
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SchurDecomp(const QuasiTriangular &tr);
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SchurDecomp(QuasiTriangular &tr);
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const SqSylvMatrix &
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getQ() const
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{
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return q;
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}
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const QuasiTriangular &
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getT() const
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{
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return *t;
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}
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SqSylvMatrix &
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getQ()
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{
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return q;
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}
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QuasiTriangular &
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getT()
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{
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return *t;
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}
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virtual int getDim() const;
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virtual ~SchurDecomp() = default;
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};
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class SchurDecompZero : public SchurDecomp
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{
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GeneralMatrix ru; // right upper matrix
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public:
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SchurDecompZero(const GeneralMatrix &m);
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ConstGeneralMatrix
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getRU() const
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{
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return ru;
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}
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int getDim() const override;
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int
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getZeroCols() const
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{
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return ru.nrows();
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}
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};
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#endif /* SCHUR_DECOMP_H */
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