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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 796f54d4ddbf
children e88a07dec498
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1996-2022 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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26 #if ! defined (octave_lu_h)
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27 #define octave_lu_h 1
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28
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29 #include "octave-config.h"
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31 #include "mx-fwd.h"
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33 #include "Array.h"
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34
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35 namespace octave
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36 {
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37 namespace math
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38 {
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39 template <typename T>
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40 class
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41 lu
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42 {
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43 public:
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45 typedef typename T::column_vector_type VT;
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46 typedef typename T::element_type ELT_T;
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48 lu (void)
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49 : m_a_fact (), m_L (), m_ipvt () { }
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51 OCTAVE_API lu (const T& a);
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53 lu (const lu& a)
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54 : m_a_fact (a.m_a_fact), m_L (a.m_L), m_ipvt (a.m_ipvt) { }
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56 OCTAVE_API lu (const T& l, const T& u, const PermMatrix& p);
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58 lu& operator = (const lu& a)
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59 {
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60 if (this != &a)
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61 {
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62 m_a_fact = a.m_a_fact;
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63 m_L = a.m_L;
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64 m_ipvt = a.m_ipvt;
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65 }
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66
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67 return *this;
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68 }
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69
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70 virtual ~lu (void) = default;
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72 OCTAVE_API bool packed (void) const;
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74 OCTAVE_API void unpack (void);
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76 OCTAVE_API T L (void) const;
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78 OCTAVE_API T U (void) const;
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80 OCTAVE_API T Y (void) const;
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82 OCTAVE_API PermMatrix P (void) const;
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84 OCTAVE_API ColumnVector P_vec (void) const;
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86 OCTAVE_API bool regular (void) const;
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87
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88 OCTAVE_API void update (const VT& u, const VT& v);
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90 OCTAVE_API void update (const T& u, const T& v);
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92 OCTAVE_API void update_piv (const VT& u, const VT& v);
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94 OCTAVE_API void update_piv (const T& u, const T& v);
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96 protected:
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98 // The result of getp is passed to other Octave Matrix functions,
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99 // so we use octave_idx_type.
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100 OCTAVE_API Array<octave_idx_type> getp (void) const;
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101
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102 T m_a_fact;
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103 T m_L;
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104
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105 // This is internal storage that is passed to Fortran,
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106 // so we need a Fortran INTEGER.
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107 Array<octave_f77_int_type> m_ipvt;
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108 };
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109 }
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110 }
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111
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112 #endif