105 lines
2.8 KiB
C++
105 lines
2.8 KiB
C++
/*
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This file is part of qxx -- matrix algebra in exact arithmetic
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Copyright (C) 2013-2014 Laurent Poirrier
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libp 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, version 3 of the License.
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This program 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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You should have received a copy of the GNU General Public License
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along with pxx. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef QXX_DMAT_HPP
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#define QXX_DMAT_HPP
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#include <cstdio>
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#include "rational.hpp"
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#include "dvec.hpp"
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// **************************************************************************
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//
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// **************************************************************************
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namespace q {
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// **************************************************************************
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//
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// **************************************************************************
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class dmat {
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public:
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dmat();
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dmat(const dmat &b);
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dmat(int m, int n);
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int rows() const;
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int cols() const;
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void resize(int m, int n);
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void clear();
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const mpq &get(int i, int j) const;
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void set(int i, int j, const mpq &v);
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void set(const mpq &v);
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void set_identity();
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dvec get_col(int j) const;
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void set_col(int j, const dvec &v);
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const dvec &get_row(int i) const;
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void set_row(int i, const dvec &v);
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dvec &operator[] (int i);
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const dvec &operator[] (int i) const;
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mpq &operator() (int i, int j);
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const mpq &operator() (int i, int j) const;
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const dmat &operator+() const;
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dmat operator-() const;
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dmat operator+(const dmat &b) const;
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dmat operator-(const dmat &b) const;
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dmat operator*(const dmat &b) const;
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dvec operator*(const dvec &v) const;
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dmat operator*(const mpq &v) const;
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dmat operator/(const mpq &v) const;
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dmat inv() const;
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dmat t() const;
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mpq det() const;
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bool operator==(const dmat &b) const;
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bool operator!=(const dmat &b) const;
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dmat &operator=(const dmat &b);
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dmat &operator=(const dvec &v);
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dmat &operator+=(const dmat &b);
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dmat &operator-=(const dmat &b);
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dmat &operator*=(const dmat &b);
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dmat &operator*=(const mpq &v);
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dmat &operator/=(const mpq &v);
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void fdump(FILE *f, const std::string &name = "") const;
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void dump(const std::string &name = "") const;
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private:
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int m, n;
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std::vector<dvec> d;
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};
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// **************************************************************************
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//
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// **************************************************************************
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std::ostream &operator<<(std::ostream &os, const dmat &a);
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// **************************************************************************
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//
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// **************************************************************************
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}
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#endif
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