Mercurial > octave
view liboctave/numeric/svd.h @ 22317:6ca3acf5fad8
move some new numeric classes to namespace octave::math
* aepbalance.cc, aepbalance.h, chol.cc, chol.h, gepbalance.cc,
gepbalance.h, hess.cc, hess.h, lu.cc, lu.h, qr.cc, qr.h, qrp.cc,
qrp.h, schur.cc, schur.h, sparse-chol.cc, sparse-chol.h,
sparse-dmsolve.cc,sparse-lu.cc, sparse-lu.h, sparse-qr.cc,
sparse-qr.h, svd.cc, svd.h: Move classes to namespace octave::math.
* __luinc__.cc, __qp__.cc, balance.cc, hess.cc, lu.cc, qz.cc,
schur.cc, sqrtm.cc, svd.cc, chol.cc, dmperm.cc, qr.cc, lex.h,
CMatrix.cc, CSparse.cc, dMatrix.cc, dSparse.cc, fCMatrix.cc,
fMatrix.cc, eigs-base.cc, oct-norm.cc: Update for new namespaces.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 16 Aug 2016 15:48:22 -0400 |
parents | da201af35c97 |
children | bac0d6f07a3e |
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/* Copyright (C) 2016 Carnë Draug Copyright (C) 1994-2015 John W. Eaton This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if ! defined (octave_svd_h) #define octave_svd_h 1 #include "octave-config.h" #include <vector> namespace octave { namespace math { template <typename T> class svd { public: typedef typename T::real_diag_matrix_type DM_T; enum class Type { std, economy, sigma_only }; enum class Driver { GESVD, GESDD }; svd (void) : m_type (), m_driver (), left_sm (), sigma (), right_sm () { } svd (const T& a, svd::Type type = svd::Type::std, svd::Driver driver = svd::Driver::GESVD); svd (const svd& a) : m_type (a.m_type), m_driver (a.m_driver), left_sm (a.left_sm), sigma (a.sigma), right_sm (a.right_sm) { } svd& operator = (const svd& a) { if (this != &a) { m_type = a.m_type; left_sm = a.left_sm; sigma = a.sigma; right_sm = a.right_sm; m_driver = a.m_driver; } return *this; } ~svd (void) { } T left_singular_matrix (void) const; DM_T singular_values (void) const { return sigma; } T right_singular_matrix (void) const; private: typedef typename T::element_type P; typedef typename DM_T::element_type DM_P; svd::Type m_type; svd::Driver m_driver; T left_sm; DM_T sigma; T right_sm; void gesvd (char& jobu, char& jobv, octave_idx_type m, octave_idx_type n, P* tmp_data, octave_idx_type m1, DM_P* s_vec, P* u, P* vt, octave_idx_type nrow_vt1, std::vector<P>& work, octave_idx_type& lwork, octave_idx_type& info); void gesdd (char& jobz, octave_idx_type m, octave_idx_type n, P* tmp_data, octave_idx_type m1, DM_P* s_vec, P* u, P* vt, octave_idx_type nrow_vt1, std::vector<P>& work, octave_idx_type& lwork, octave_idx_type* iwork, octave_idx_type& info); }; } } #endif