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annotate liboctave/numeric/bsxfun.h @ 31249:de6fc38c78c6

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Make Jacobian types offered by dlsode.f accessible by lsode (bug #31626). * liboctave/numeric/LSODE-opts.in: Add options "jacobian type", "lower jacobian subdiagonals", and "upper jacobian subdiagonals". * liboctave/numeric/LSODE.cc (file scope, lsode_j, LSODE::do_integrate (double)): Handle new configurable Jacobian types. * build-aux/mk-opts.pl: Don't implicitly convert to integer in condition.
author Olaf Till <olaf.till@uni-jena.de>
date Fri, 12 Nov 2010 08:53:05 +0100
parents 84fa12727b43
children 597f3ee61a48
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2012-2022 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if ! defined (octave_bsxfun_h)
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27 #define octave_bsxfun_h 1
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28
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29 #include "octave-config.h"
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30
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31 #include <algorithm>
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32 #include <string>
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33
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34 #include "dim-vector.h"
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35 #include "lo-error.h"
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36
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37 inline
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38 bool
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39 is_valid_bsxfun (const std::string& name,
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40 const dim_vector& xdv, const dim_vector& ydv)
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41 {
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42 for (int i = 0; i < std::min (xdv.ndims (), ydv.ndims ()); i++)
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43 {
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44 octave_idx_type xk = xdv(i);
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45 octave_idx_type yk = ydv(i);
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46 // Check the three conditions for valid bsxfun dims
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47 if (! ((xk == yk) || (xk == 1 && yk != 1) || (xk != 1 && yk == 1)))
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48 return false;
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49 }
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50
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51 (*current_liboctave_warning_with_id_handler)
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52 ("Octave:language-extension", "performing '%s' automatic broadcasting",
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53 name.c_str ());
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54
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55 return true;
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56 }
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57
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58 // For inplace operations the size of the resulting matrix cannot be changed.
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59 // Therefore we can only apply singleton expansion on the second matrix which
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60 // alters the conditions to check.
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61 inline
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62 bool
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63 is_valid_inplace_bsxfun (const std::string& name,
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64 const dim_vector& rdv, const dim_vector& xdv)
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65 {
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66 octave_idx_type r_nd = rdv.ndims ();
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67 octave_idx_type x_nd = xdv.ndims ();
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68 if (r_nd < x_nd)
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69 return false;
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70
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71 for (int i = 0; i < x_nd; i++)
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72 {
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73 octave_idx_type rk = rdv(i);
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74 octave_idx_type xk = xdv(i);
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75
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76 // Only two valid conditions to check; can't stretch rk
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77 if ((rk != xk) && xk != 1)
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78 return false;
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79 }
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80
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81 (*current_liboctave_warning_with_id_handler)
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83 name.c_str ());
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84
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85 return true;
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86 }
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87
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88 #include "bsxfun-defs.cc"
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89
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90 #endif