Mercurial > octave
view libinterp/operators/op-dm-sm.cc @ 33584:3fe954c2fd25 default tip @
maint: merge stable to default
author | Rik <rik@octave.org> |
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date | Mon, 13 May 2024 11:41:11 -0700 |
parents | 2e484f9f1f18 |
children |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2009-2024 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // 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 // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include "ovl.h" #include "ov.h" #include "ov-typeinfo.h" #include "ops.h" #include "ov-re-diag.h" #include "ov-re-sparse.h" #include "sparse-xdiv.h" OCTAVE_BEGIN_NAMESPACE(octave) // diagonal matrix by sparse matrix ops DEFBINOP (mul_dm_sm, diag_matrix, sparse_matrix) { OCTAVE_CAST_BASE_VALUE (const octave_diag_matrix&, v1, a1); OCTAVE_CAST_BASE_VALUE (const octave_sparse_matrix&, v2, a2); if (v2.rows () == 1 && v2.columns () == 1) // If v2 is a scalar in disguise, return a diagonal matrix rather than // a sparse matrix. { double d = v2.scalar_value (); return octave_value (v1.diag_matrix_value () * d); } else { MatrixType typ = v2.matrix_type (); SparseMatrix ret = v1.diag_matrix_value () * v2.sparse_matrix_value (); octave_value out = octave_value (ret); typ.mark_as_unsymmetric (); out.matrix_type (typ); return out; } } DEFBINOP (ldiv_dm_sm, diag_matrix, sparse_matrix) { OCTAVE_CAST_BASE_VALUE (const octave_diag_matrix&, v1, a1); OCTAVE_CAST_BASE_VALUE (const octave_sparse_matrix&, v2, a2); MatrixType typ = v2.matrix_type (); return xleftdiv (v1.diag_matrix_value (), v2.sparse_matrix_value (), typ); } DEFBINOP (add_dm_sm, diag_matrix, sparse_matrix) { OCTAVE_CAST_BASE_VALUE (const octave_diag_matrix&, v1, a1); OCTAVE_CAST_BASE_VALUE (const octave_sparse_matrix&, v2, a2); if (v2.rows () == 1 && v2.columns () == 1) // If v2 is a scalar in disguise, return a diagonal matrix rather than // a sparse matrix. { double d = v2.scalar_value (); return octave_value (v1.matrix_value () + d); } else return v1.diag_matrix_value () + v2.sparse_matrix_value (); } DEFBINOP (sub_dm_sm, diag_matrix, sparse_matrix) { OCTAVE_CAST_BASE_VALUE (const octave_diag_matrix&, v1, a1); OCTAVE_CAST_BASE_VALUE (const octave_sparse_matrix&, v2, a2); if (v2.rows () == 1 && v2.columns () == 1) // If v2 is a scalar in disguise, return a diagonal matrix rather than // a sparse matrix. { double d = v2.scalar_value (); return octave_value (v1.matrix_value () - d); } else return v1.diag_matrix_value () - v2.sparse_matrix_value (); } // sparse matrix by diagonal matrix ops DEFBINOP (mul_sm_dm, sparse_matrix, diag_matrix) { OCTAVE_CAST_BASE_VALUE (const octave_sparse_matrix&, v1, a1); OCTAVE_CAST_BASE_VALUE (const octave_diag_matrix&, v2, a2); if (v1.rows () == 1 && v1.columns () == 1) // If v1 is a scalar in disguise, return a diagonal matrix rather than // a sparse matrix. { double d = v1.scalar_value (); return octave_value (d * v2.diag_matrix_value ()); } else { MatrixType typ = v1.matrix_type (); SparseMatrix ret = v1.sparse_matrix_value () * v2.diag_matrix_value (); octave_value out = octave_value (ret); typ.mark_as_unsymmetric (); out.matrix_type (typ); return out; } } DEFBINOP (div_sm_dm, sparse_matrix, diag_matrix) { OCTAVE_CAST_BASE_VALUE (const octave_sparse_matrix&, v1, a1); OCTAVE_CAST_BASE_VALUE (const octave_diag_matrix&, v2, a2); if (v2.rows () == 1 && v2.columns () == 1) return octave_value (v1.sparse_matrix_value () / v2.scalar_value ()); else { MatrixType typ = v2.matrix_type (); return xdiv (v1.sparse_matrix_value (), v2.diag_matrix_value (), typ); } } DEFBINOP (add_sm_dm, sparse_matrix, diag_matrix) { OCTAVE_CAST_BASE_VALUE (const octave_sparse_matrix&, v1, a1); OCTAVE_CAST_BASE_VALUE (const octave_diag_matrix&, v2, a2); if (v1.rows () == 1 && v1.columns () == 1) // If v1 is a scalar in disguise, return a diagonal matrix rather than // a sparse matrix. { double d = v1.scalar_value (); return octave_value (d + v2.matrix_value ()); } else return v1.sparse_matrix_value () + v2.diag_matrix_value (); } DEFBINOP (sub_sm_dm, sparse_matrix, diag_matrix) { OCTAVE_CAST_BASE_VALUE (const octave_sparse_matrix&, v1, a1); OCTAVE_CAST_BASE_VALUE (const octave_diag_matrix&, v2, a2); if (v1.rows () == 1 && v1.columns () == 1) // If v1 is a scalar in disguise, return a diagonal matrix rather than // a sparse matrix. { double d = v1.scalar_value (); return octave_value (d - v2.matrix_value ()); } else return v1.sparse_matrix_value () - v2.diag_matrix_value (); } void install_dm_sm_ops (octave::type_info& ti) { INSTALL_BINOP_TI (ti, op_mul, octave_diag_matrix, octave_sparse_matrix, mul_dm_sm); INSTALL_BINOP_TI (ti, op_add, octave_diag_matrix, octave_sparse_matrix, add_dm_sm); INSTALL_BINOP_TI (ti, op_sub, octave_diag_matrix, octave_sparse_matrix, sub_dm_sm); INSTALL_BINOP_TI (ti, op_ldiv, octave_diag_matrix, octave_sparse_matrix, ldiv_dm_sm); INSTALL_BINOP_TI (ti, op_mul, octave_sparse_matrix, octave_diag_matrix, mul_sm_dm); INSTALL_BINOP_TI (ti, op_add, octave_sparse_matrix, octave_diag_matrix, add_sm_dm); INSTALL_BINOP_TI (ti, op_sub, octave_sparse_matrix, octave_diag_matrix, sub_sm_dm); INSTALL_BINOP_TI (ti, op_div, octave_sparse_matrix, octave_diag_matrix, div_sm_dm); } OCTAVE_END_NAMESPACE(octave)