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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents 7d6709900da7
children 4b367bf5eb16
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2002-2022 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 (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include "lo-slatec-proto.h"
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31
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32 #include "defun.h"
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33 #include "error.h"
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34 #include "errwarn.h"
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35 #include "ovl.h"
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36 #include "utils.h"
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37 #include "f77-fcn.h"
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38
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39 OCTAVE_NAMESPACE_BEGIN
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40
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41 // Wrapper for SLATEC/PCHIP function DPCHIM to calculate the derivates
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42 // for piecewise polynomials.
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43
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44 DEFUN (__pchip_deriv__, args, ,
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45 doc: /* -*- texinfo -*-
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46 @deftypefn {} {} __pchip_deriv__ (@var{x}, @var{y}, @var{dim})
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47 Undocumented internal function.
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48 @end deftypefn */)
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49 {
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50 octave_value retval;
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51 int nargin = args.length ();
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52
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53 bool rows = (nargin == 3 && args(2).uint_value () == 2);
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54
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55 if (nargin >= 2)
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56 {
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57 if (args(0).is_single_type () || args(1).is_single_type ())
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58 {
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59 FloatColumnVector xvec (args(0).float_vector_value ());
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60 FloatMatrix ymat (args(1).float_matrix_value ());
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61
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62 F77_INT nx = to_f77_int (xvec.numel ());
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63
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64 if (nx < 2)
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65 error ("__pchip_deriv__: X must be at least of length 2");
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66
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67 octave_idx_type nyr = ymat.rows ();
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68 octave_idx_type nyc = ymat.columns ();
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69
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70 if (nx != (rows ? nyc : nyr))
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71 error ("__pchip_deriv__: X and Y dimension mismatch");
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72
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73 FloatMatrix dmat (nyr, nyc);
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74
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75 F77_INT ierr;
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76 const F77_INT incfd = (rows ? to_f77_int (nyr) : 1);
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77 volatile const octave_idx_type inc = (rows ? 1 : nyr);
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78 volatile octave_idx_type k = 0;
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79
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80 for (volatile octave_idx_type i = (rows ? nyr : nyc); i > 0; i--)
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81 {
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82 F77_XFCN (pchim, PCHIM, (nx, xvec.data (),
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83 ymat.data () + k * inc,
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84 dmat.fortran_vec () + k * inc,
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85 incfd, ierr));
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86
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87 k++;
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88
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89 if (ierr < 0)
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90 error ("__pchip_deriv__: PCHIM failed with ierr = %"
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91 OCTAVE_F77_INT_TYPE_FORMAT, ierr);
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92 }
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93
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94 retval = dmat;
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95 }
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96 else
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97 {
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98 ColumnVector xvec (args(0).vector_value ());
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99 Matrix ymat (args(1).matrix_value ());
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100
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101 F77_INT nx = to_f77_int (xvec.numel ());
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102
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103 if (nx < 2)
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104 error ("__pchip_deriv__: X must be at least of length 2");
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105
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106 octave_idx_type nyr = ymat.rows ();
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107 octave_idx_type nyc = ymat.columns ();
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108
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109 if (nx != (rows ? nyc : nyr))
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110 error ("__pchip_deriv__: X and Y dimension mismatch");
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111
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112 Matrix dmat (nyr, nyc);
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113
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114 F77_INT ierr;
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115 const F77_INT incfd = (rows ? to_f77_int (nyr) : 1);
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116 volatile const octave_idx_type inc = (rows ? 1 : nyr);
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117 volatile octave_idx_type k = 0;
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118
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119 for (volatile octave_idx_type i = (rows ? nyr : nyc); i > 0; i--)
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120 {
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121 F77_XFCN (dpchim, DPCHIM, (nx, xvec.data (),
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122 ymat.data () + k * inc,
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123 dmat.fortran_vec () + k * inc,
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124 incfd, ierr));
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125 k++;
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126
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127 if (ierr < 0)
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128 error ("__pchip_deriv__: DPCHIM failed with ierr = %"
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129 OCTAVE_F77_INT_TYPE_FORMAT, ierr);
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130 }
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131
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John W. Eaton <jwe@octave.org>
parents: 8713
diff changeset
132 retval = dmat;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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parents: 8713
diff changeset
133 }
5837
55404f3b0da1 [project @ 2006-06-01 19:05:31 by jwe]
jwe
parents:
diff changeset
134 }
55404f3b0da1 [project @ 2006-06-01 19:05:31 by jwe]
jwe
parents:
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135
55404f3b0da1 [project @ 2006-06-01 19:05:31 by jwe]
jwe
parents:
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136 return retval;
55404f3b0da1 [project @ 2006-06-01 19:05:31 by jwe]
jwe
parents:
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137 }
12805
3641167e5b75 codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
138
3641167e5b75 codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
139 /*
3641167e5b75 codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents: 11586
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140 ## No test needed for internal helper function.
3641167e5b75 codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
141 %!assert (1)
3641167e5b75 codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
142 */
29958
32c3a5805893 move DEFUN and DEFMETHOD functions inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29417
diff changeset
143
32c3a5805893 move DEFUN and DEFMETHOD functions inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29417
diff changeset
144 OCTAVE_NAMESPACE_END