98 lines
2.6 KiB
C++
98 lines
2.6 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_SMAT_HPP
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#define QXX_SMAT_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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#include "dmat.hpp"
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#include "svec.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 smat {
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public:
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smat();
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smat(const smat &b);
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smat(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_zero();
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void set_identity();
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void gather(const dmat &src);
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void spread(dmat &r) const;
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dmat dense() const;
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svec get_col(int j) const;
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void set_col(int j, const svec &v);
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const svec &get_row(int i) const;
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void set_row(int i, const svec &v);
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svec &operator[] (int i);
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const svec &operator[] (int i) const;
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svec_ref operator() (int i, int j);
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const mpq &operator() (int i, int j) const;
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smat &operator=(const smat &b);
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smat operator*(const smat &b) const;
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dvec operator*(const dvec &v) const;
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svec operator*(const svec &v) const;
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smat inv() const;
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void set_transpose(const smat &a);
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smat t() const;
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mpq det() const;
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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<svec> 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 smat &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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