Mercurial > octave
annotate libinterp/corefcn/kron.cc @ 21966:112b20240c87
move docstrings in C++ files out of C strings and into comments
* __contourc__.cc, __dispatch__.cc, __dsearchn__.cc, __ichol__.cc,
__ilu__.cc, __lin_interpn__.cc, __luinc__.cc, __magick_read__.cc,
__pchip_deriv__.cc, __qp__.cc, balance.cc, besselj.cc, betainc.cc,
bitfcns.cc, bsxfun.cc, cellfun.cc, colloc.cc, conv2.cc, daspk.cc,
dasrt.cc, dassl.cc, data.cc, debug.cc, defaults.cc, det.cc, dirfns.cc,
dlmread.cc, dot.cc, eig.cc, ellipj.cc, error.cc, fft.cc, fft2.cc,
fftn.cc, file-io.cc, filter.cc, find.cc, gammainc.cc, gcd.cc,
getgrent.cc, getpwent.cc, getrusage.cc, givens.cc, graphics.cc,
hash.cc, help.cc, hess.cc, hex2num.cc, input.cc, inv.cc, kron.cc,
load-path.cc, load-save.cc, lookup.cc, ls-oct-text.cc, lsode.cc,
lu.cc, mappers.cc, matrix_type.cc, max.cc, mgorth.cc, nproc.cc,
oct-hist.cc, octave-link.cc, ordschur.cc, pager.cc, pinv.cc,
pr-output.cc, profiler.cc, psi.cc, pt-jit.cc, quad.cc, quadcc.cc,
qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, sighandlers.cc,
sparse.cc, spparms.cc, sqrtm.cc, str2double.cc, strfind.cc, strfns.cc,
sub2ind.cc, svd.cc, sylvester.cc, symtab.cc, syscalls.cc, sysdep.cc,
time.cc, toplev.cc, tril.cc, tsearch.cc, typecast.cc, urlwrite.cc,
utils.cc, variables.cc, __delaunayn__.cc, __eigs__.cc,
__fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc,
__init_gnuplot__.cc, __osmesa_print__.cc, __voronoi__.cc, amd.cc,
audiodevinfo.cc, audioread.cc, ccolamd.cc, chol.cc, colamd.cc,
convhulln.cc, dmperm.cc, fftw.cc, qr.cc, symbfact.cc, symrcm.cc,
ov-base.cc, ov-bool-mat.cc, ov-cell.cc, ov-class.cc, ov-classdef.cc,
ov-fcn-handle.cc, ov-fcn-inline.cc, ov-flt-re-mat.cc, ov-int16.cc,
ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-java.cc, ov-null-mat.cc,
ov-oncleanup.cc, ov-range.cc, ov-re-mat.cc, ov-struct.cc,
ov-typeinfo.cc, ov-uint16.cc, ov-uint32.cc, ov-uint64.cc, ov-uint8.cc,
ov-usr-fcn.cc, ov.cc, octave.cc, pt-arg-list.cc, pt-binop.cc,
pt-eval.cc, pt-mat.cc, lex.ll, oct-parse.in.yy:
Docstrings are now comments instead of C strings.
* build-aux/mk-opts.pl: Emit docstrings as comments instead of C
strings.
* DASPK-opts.in, LSODE-opts.in: Don't quote " in docstring fragments.
* builtins.h: Include builtin-defun-decls.h unconditionally.
* defun.h (DEFUN, DEFUNX, DEFCONSTFUN): Simply emit declaration.
(DEFALIAS): Always expand to nothing.
* defun-dld.h: No special macro expansions for MAKE_BUILTINS.
(DEFUN_DLD): Use FORWARD_DECLARE_FUN.
(DEFUNX_DLD): Use FORWARD_DECLARE_FUNX.
* defun-int.h: No special macro expansions for MAKE_BUILTINS.
(FORWARD_DECLARE_FUN, FORWARD_DECLARE_FUNX): New macros.
(DEFINE_FUN_INSTALLER_FUN): If compiling an Octave source file, pass
"external-doc" to DEFINE_FUNX_INSTALLER_FUN.
(DEFUN_INTERNAL, DEFCONSTFUN_INTERNAL, DEFUNX_INTERNAL,
DEFALIAS_INTERNAL): Delete.
* common.mk (move_if_change_rule): New macro.
(simple_move_if_change_rule): Define using move_if_change_rule.
* find-defun-files.sh (DEFUN_PATTERN): Update. Don't transform file
name extension to ".df".
* libinterp/mk-pkg-add, gendoc.pl: Operate directly on source files.
* mkbuiltins: New argument, SRCDIR. Operate directly on source files.
* mkdefs: Delete.
* libinterp/module.mk (BUILT_SOURCES): Update list to contain only
files included in other source files.
(GENERATED_MAKE_BUILTINS_INCS, DEF_FILES): Delete.
(LIBINTERP_BUILT_DISTFILES): Include $(OPT_HANDLERS) here.
(LIBINTERP_BUILT_NODISTFILES): Not here. Remove $(ALL_DEF_FILES from
the list.
(libinterp_EXTRA_DIST): Remove mkdefs from the list.
(FOUND_DEFUN_FILES): Rename from SRC_DEF_FILES.
(DLDFCN_DEFUN_FILES): Rename from DLDFCN_DEF_FILES.
(SRC_DEFUN_FILES): Rename from SRC_DEF_FILES.
(ALL_DEFUN_FILES): Rename from ALL_DEF_FILES.
(%.df: %.cc): Delete pattern rule.
(libinterp/build-env-features.cc, libinterp/builtins.cc,
libinterp/dldfcn/PKG_ADD): Use mv instead of move-if-change.
(libinterp/builtins.cc, libinterp/builtin-defun-decls.h):
Update mkbuiltins command.
($(srcdir)/libinterp/DOCSTRINGS): Update gendoc.pl command.
* liboctave/module.mk (BUILT_SOURCES): Don't include
liboctave-build-info.cc in the list.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 21 Jun 2016 16:07:51 -0400 |
parents | aba2e6293dd8 |
children | 278fc29b69ca |
rev | line source |
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3910 | 1 /* |
2 | |
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3 Copyright (C) 2002-2015 John W. Eaton |
3910 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
3910 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
3910 | 20 |
21 */ | |
22 | |
3911 | 23 // Author: Paul Kienzle <pkienzle@users.sf.net> |
24 | |
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25 #if defined (HAVE_CONFIG_H) |
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26 # include "config.h" |
3910 | 27 #endif |
28 | |
29 #include "dMatrix.h" | |
10461 | 30 #include "fMatrix.h" |
3910 | 31 #include "CMatrix.h" |
10461 | 32 #include "fCMatrix.h" |
33 | |
34 #include "dSparse.h" | |
35 #include "CSparse.h" | |
36 | |
37 #include "dDiagMatrix.h" | |
38 #include "fDiagMatrix.h" | |
39 #include "CDiagMatrix.h" | |
40 #include "fCDiagMatrix.h" | |
41 | |
42 #include "PermMatrix.h" | |
43 | |
44 #include "mx-inlines.cc" | |
4153 | 45 #include "quit.h" |
3910 | 46 |
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47 #include "defun.h" |
3910 | 48 #include "error.h" |
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49 #include "ovl.h" |
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51 template <typename R, typename T> |
10461 | 52 static MArray<T> |
53 kron (const MArray<R>& a, const MArray<T>& b) | |
54 { | |
55 assert (a.ndims () == 2); | |
56 assert (b.ndims () == 2); | |
57 | |
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58 octave_idx_type nra = a.rows (); |
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59 octave_idx_type nrb = b.rows (); |
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60 octave_idx_type nca = a.cols (); |
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61 octave_idx_type ncb = b.cols (); |
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63 MArray<T> c (dim_vector (nra*nrb, nca*ncb)); |
10461 | 64 T *cv = c.fortran_vec (); |
65 | |
66 for (octave_idx_type ja = 0; ja < nca; ja++) | |
67 for (octave_idx_type jb = 0; jb < ncb; jb++) | |
68 for (octave_idx_type ia = 0; ia < nra; ia++) | |
69 { | |
70 octave_quit (); | |
71 mx_inline_mul (nrb, cv, a(ia, ja), b.data () + nrb*jb); | |
72 cv += nrb; | |
73 } | |
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74 |
10461 | 75 return c; |
76 } | |
77 | |
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78 template <typename R, typename T> |
10461 | 79 static MArray<T> |
80 kron (const MDiagArray2<R>& a, const MArray<T>& b) | |
81 { | |
82 assert (b.ndims () == 2); | |
83 | |
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84 octave_idx_type nra = a.rows (); |
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85 octave_idx_type nrb = b.rows (); |
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86 octave_idx_type dla = a.diag_length (); |
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87 octave_idx_type nca = a.cols (); |
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88 octave_idx_type ncb = b.cols (); |
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89 |
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90 MArray<T> c (dim_vector (nra*nrb, nca*ncb), T ()); |
10461 | 91 |
92 for (octave_idx_type ja = 0; ja < dla; ja++) | |
93 for (octave_idx_type jb = 0; jb < ncb; jb++) | |
94 { | |
95 octave_quit (); | |
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96 mx_inline_mul (nrb, &c.xelem (ja*nrb, ja*ncb + jb), a.dgelem (ja), |
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97 b.data () + nrb*jb); |
10461 | 98 } |
99 | |
100 return c; | |
101 } | |
3910 | 102 |
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103 template <typename T> |
10461 | 104 static MSparse<T> |
105 kron (const MSparse<T>& A, const MSparse<T>& B) | |
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106 { |
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107 octave_idx_type idx = 0; |
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108 MSparse<T> C (A.rows () * B.rows (), A.columns () * B.columns (), |
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109 A.nnz () * B.nnz ()); |
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110 |
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111 C.cidx (0) = 0; |
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112 |
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113 for (octave_idx_type Aj = 0; Aj < A.columns (); Aj++) |
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114 for (octave_idx_type Bj = 0; Bj < B.columns (); Bj++) |
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115 { |
10461 | 116 octave_quit (); |
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117 for (octave_idx_type Ai = A.cidx (Aj); Ai < A.cidx (Aj+1); Ai++) |
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118 { |
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119 octave_idx_type Ci = A.ridx (Ai) * B.rows (); |
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120 const T v = A.data (Ai); |
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121 |
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122 for (octave_idx_type Bi = B.cidx (Bj); Bi < B.cidx (Bj+1); Bi++) |
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123 { |
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124 C.data (idx) = v * B.data (Bi); |
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125 C.ridx (idx++) = Ci + B.ridx (Bi); |
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126 } |
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127 } |
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128 C.cidx (Aj * B.columns () + Bj + 1) = idx; |
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129 } |
10461 | 130 |
131 return C; | |
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132 } |
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133 |
10461 | 134 static PermMatrix |
135 kron (const PermMatrix& a, const PermMatrix& b) | |
136 { | |
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137 octave_idx_type na = a.rows (); |
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138 octave_idx_type nb = b.rows (); |
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139 const Array<octave_idx_type>& pa = a.col_perm_vec (); |
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140 const Array<octave_idx_type>& pb = b.col_perm_vec (); |
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141 Array<octave_idx_type> res_perm (dim_vector (na * nb, 1)); |
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142 octave_idx_type rescol = 0; |
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143 for (octave_idx_type i = 0; i < na; i++) |
10461 | 144 { |
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145 octave_idx_type a_add = pa(i) * nb; |
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146 for (octave_idx_type j = 0; j < nb; j++) |
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147 res_perm.xelem (rescol++) = a_add + pb(j); |
10461 | 148 } |
149 | |
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150 return PermMatrix (res_perm, true); |
10461 | 151 } |
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152 |
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153 template <typename MTA, typename MTB> |
10461 | 154 octave_value |
155 do_kron (const octave_value& a, const octave_value& b) | |
156 { | |
157 MTA am = octave_value_extract<MTA> (a); | |
158 MTB bm = octave_value_extract<MTB> (b); | |
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159 |
10461 | 160 return octave_value (kron (am, bm)); |
161 } | |
162 | |
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163 octave_value |
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164 dispatch_kron (const octave_value& a, const octave_value& b) |
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165 { |
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166 octave_value retval; |
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167 if (a.is_perm_matrix () && b.is_perm_matrix ()) |
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168 retval = do_kron<PermMatrix, PermMatrix> (a, b); |
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169 else if (a.is_sparse_type () || b.is_sparse_type ()) |
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170 { |
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171 if (a.is_complex_type () || b.is_complex_type ()) |
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172 retval = do_kron<SparseComplexMatrix, SparseComplexMatrix> (a, b); |
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173 else |
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174 retval = do_kron<SparseMatrix, SparseMatrix> (a, b); |
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175 } |
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176 else if (a.is_diag_matrix ()) |
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177 { |
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178 if (b.is_diag_matrix () && a.rows () == a.columns () |
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179 && b.rows () == b.columns ()) |
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180 { |
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181 // We have two diagonal matrices, the product of those will be |
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182 // another diagonal matrix. To do that efficiently, extract |
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183 // the diagonals as vectors and compute the product. That |
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184 // will be another vector, which we then use to construct a |
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185 // diagonal matrix object. Note that this will fail if our |
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186 // digaonal matrix object is modified to allow the nonzero |
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187 // values to be stored off of the principal diagonal (i.e., if |
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188 // diag ([1,2], 3) is modified to return a diagonal matrix |
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189 // object instead of a full matrix object). |
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190 |
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191 octave_value tmp = dispatch_kron (a.diag (), b.diag ()); |
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192 retval = tmp.diag (); |
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193 } |
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194 else if (a.is_single_type () || b.is_single_type ()) |
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195 { |
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196 if (a.is_complex_type ()) |
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197 retval = do_kron<FloatComplexDiagMatrix, FloatComplexMatrix> (a, b); |
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198 else if (b.is_complex_type ()) |
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199 retval = do_kron<FloatDiagMatrix, FloatComplexMatrix> (a, b); |
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200 else |
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201 retval = do_kron<FloatDiagMatrix, FloatMatrix> (a, b); |
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202 } |
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203 else |
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204 { |
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205 if (a.is_complex_type ()) |
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206 retval = do_kron<ComplexDiagMatrix, ComplexMatrix> (a, b); |
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207 else if (b.is_complex_type ()) |
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208 retval = do_kron<DiagMatrix, ComplexMatrix> (a, b); |
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209 else |
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210 retval = do_kron<DiagMatrix, Matrix> (a, b); |
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211 } |
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212 } |
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213 else if (a.is_single_type () || b.is_single_type ()) |
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214 { |
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215 if (a.is_complex_type ()) |
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216 retval = do_kron<FloatComplexMatrix, FloatComplexMatrix> (a, b); |
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217 else if (b.is_complex_type ()) |
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218 retval = do_kron<FloatMatrix, FloatComplexMatrix> (a, b); |
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219 else |
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220 retval = do_kron<FloatMatrix, FloatMatrix> (a, b); |
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221 } |
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222 else |
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223 { |
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224 if (a.is_complex_type ()) |
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225 retval = do_kron<ComplexMatrix, ComplexMatrix> (a, b); |
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226 else if (b.is_complex_type ()) |
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227 retval = do_kron<Matrix, ComplexMatrix> (a, b); |
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228 else |
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229 retval = do_kron<Matrix, Matrix> (a, b); |
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230 } |
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231 return retval; |
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232 } |
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233 |
10461 | 234 |
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235 DEFUN (kron, args, , |
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236 doc: /* -*- texinfo -*- |
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237 @deftypefn {} {} kron (@var{A}, @var{B}) |
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238 @deftypefnx {} {} kron (@var{A1}, @var{A2}, @dots{}) |
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239 Form the Kronecker product of two or more matrices. |
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240 |
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241 This is defined block by block as |
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242 |
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243 @example |
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244 x = [ a(i,j)*b ] |
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245 @end example |
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246 |
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247 For example: |
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248 |
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249 @example |
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250 @group |
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251 kron (1:4, ones (3, 1)) |
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252 @result{} 1 2 3 4 |
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253 1 2 3 4 |
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254 1 2 3 4 |
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255 @end group |
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256 @end example |
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257 |
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258 If there are more than two input arguments @var{A1}, @var{A2}, @dots{}, |
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259 @var{An} the Kronecker product is computed as |
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260 |
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261 @example |
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262 kron (kron (@var{A1}, @var{A2}), @dots{}, @var{An}) |
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263 @end example |
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264 |
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265 @noindent |
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266 Since the Kronecker product is associative, this is well-defined. |
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267 @end deftypefn */) |
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269 int nargin = args.length (); | |
270 | |
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271 if (nargin < 2) |
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272 print_usage (); |
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274 octave_value retval; |
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275 |
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276 octave_value a = args(0); |
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277 octave_value b = args(1); |
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278 |
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279 retval = dispatch_kron (a, b); |
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280 |
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281 for (octave_idx_type i = 2; i < nargin; i++) |
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282 retval = dispatch_kron (retval, args(i)); |
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283 |
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285 } | |
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286 |
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287 |
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288 /* |
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289 %!test |
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290 %! x = ones (2); |
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291 %! assert (kron (x, x), ones (4)); |
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292 |
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293 %!shared x, y, z, p1, p2, d1, d2 |
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294 %! x = [1, 2]; |
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295 %! y = [-1, -2]; |
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296 %! z = [1, 2, 3, 4; 1, 2, 3, 4; 1, 2, 3, 4]; |
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297 %! p1 = eye (3)([2, 3, 1], :); ## Permutation matrix |
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298 %! p2 = [0 1 0; 0 0 1; 1 0 0]; ## Non-permutation equivalent |
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299 %! d1 = diag ([1 2 3]); ## Diag type matrix |
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300 %! d2 = [1 0 0; 0 2 0; 0 0 3]; ## Non-diag equivalent |
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301 %!assert (kron (1:4, ones (3, 1)), z) |
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302 %!assert (kron (single (1:4), ones (3, 1)), single (z)) |
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303 %!assert (kron (sparse (1:4), ones (3, 1)), sparse (z)) |
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304 %!assert (kron (complex (1:4), ones (3, 1)), z) |
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305 %!assert (kron (complex (single(1:4)), ones (3, 1)), single(z)) |
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306 %!assert (kron (x, y, z), kron (kron (x, y), z)) |
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307 %!assert (kron (x, y, z), kron (x, kron (y, z))) |
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308 %!assert (kron (p1, p1), kron (p2, p2)) |
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309 %!assert (kron (p1, p2), kron (p2, p1)) |
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310 %!assert (kron (d1, d1), kron (d2, d2)) |
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311 %!assert (kron (d1, d2), kron (d2, d1)) |
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312 |
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313 |
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314 %!assert (kron (diag ([1, 2]), diag ([3, 4])), diag ([3, 4, 6, 8])) |
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315 |
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316 %% Test for two diag matrices. See the comments above in |
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317 %% dispatch_kron for this case. |
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318 %% |
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319 %!test |
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320 %! expected = zeros (16, 16); |
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321 %! expected (1, 11) = 3; |
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322 %! expected (2, 12) = 4; |
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323 %! expected (5, 15) = 6; |
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324 %! expected (6, 16) = 8; |
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325 %! assert (kron (diag ([1, 2], 2), diag ([3, 4], 2)), expected); |
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326 */ |