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annotate libinterp/corefcn/dot.cc @ 17787:175b392e91fe

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Use GNU style coding conventions for code in libinterp/ * libinterp/corefcn/Cell.h, libinterp/corefcn/__contourc__.cc, libinterp/corefcn/__dispatch__.cc, libinterp/corefcn/__lin_interpn__.cc, libinterp/corefcn/__pchip_deriv__.cc, libinterp/corefcn/__qp__.cc, libinterp/corefcn/balance.cc, libinterp/corefcn/besselj.cc, libinterp/corefcn/betainc.cc, libinterp/corefcn/bitfcns.cc, libinterp/corefcn/bsxfun.cc, libinterp/corefcn/c-file-ptr-stream.cc, libinterp/corefcn/c-file-ptr-stream.h, libinterp/corefcn/cellfun.cc, libinterp/corefcn/colloc.cc, libinterp/corefcn/comment-list.h, libinterp/corefcn/conv2.cc, libinterp/corefcn/daspk.cc, libinterp/corefcn/dasrt.cc, libinterp/corefcn/dassl.cc, libinterp/corefcn/data.cc, libinterp/corefcn/debug.cc, libinterp/corefcn/defaults.cc, libinterp/corefcn/defaults.in.h, libinterp/corefcn/defun-int.h, libinterp/corefcn/defun.cc, libinterp/corefcn/det.cc, libinterp/corefcn/dirfns.cc, libinterp/corefcn/display.cc, libinterp/corefcn/dlmread.cc, libinterp/corefcn/dot.cc, libinterp/corefcn/dynamic-ld.cc, libinterp/corefcn/dynamic-ld.h, libinterp/corefcn/eig.cc, libinterp/corefcn/ellipj.cc, libinterp/corefcn/error.cc, libinterp/corefcn/error.h, libinterp/corefcn/event-queue.h, libinterp/corefcn/fft.cc, libinterp/corefcn/fft2.cc, libinterp/corefcn/fftn.cc, libinterp/corefcn/file-io.cc, libinterp/corefcn/filter.cc, libinterp/corefcn/find.cc, libinterp/corefcn/gammainc.cc, libinterp/corefcn/gcd.cc, libinterp/corefcn/getgrent.cc, libinterp/corefcn/getpwent.cc, libinterp/corefcn/getrusage.cc, libinterp/corefcn/givens.cc, libinterp/corefcn/gl-render.cc, libinterp/corefcn/gl2ps-renderer.cc, libinterp/corefcn/gl2ps-renderer.h, libinterp/corefcn/graphics.cc, libinterp/corefcn/graphics.in.h, libinterp/corefcn/gripes.cc, libinterp/corefcn/gripes.h, libinterp/corefcn/help.cc, libinterp/corefcn/hess.cc, libinterp/corefcn/hex2num.cc, libinterp/corefcn/input.cc, libinterp/corefcn/input.h, libinterp/corefcn/inv.cc, libinterp/corefcn/jit-ir.h, libinterp/corefcn/jit-typeinfo.cc, libinterp/corefcn/jit-typeinfo.h, libinterp/corefcn/jit-util.h, libinterp/corefcn/kron.cc, libinterp/corefcn/load-path.cc, libinterp/corefcn/load-path.h, libinterp/corefcn/load-save.cc, libinterp/corefcn/load-save.h, libinterp/corefcn/lookup.cc, libinterp/corefcn/ls-ascii-helper.cc, libinterp/corefcn/ls-hdf5.cc, libinterp/corefcn/ls-hdf5.h, libinterp/corefcn/ls-mat-ascii.cc, libinterp/corefcn/ls-mat-ascii.h, libinterp/corefcn/ls-mat4.cc, libinterp/corefcn/ls-mat5.cc, libinterp/corefcn/ls-mat5.h, libinterp/corefcn/ls-oct-ascii.cc, libinterp/corefcn/lsode.cc, libinterp/corefcn/lu.cc, libinterp/corefcn/luinc.cc, libinterp/corefcn/mappers.cc, libinterp/corefcn/matrix_type.cc, libinterp/corefcn/max.cc, libinterp/corefcn/md5sum.cc, libinterp/corefcn/mex.cc, libinterp/corefcn/mexproto.h, libinterp/corefcn/mgorth.cc, libinterp/corefcn/mxarray.in.h, libinterp/corefcn/nproc.cc, libinterp/corefcn/oct-hist.cc, libinterp/corefcn/oct-lvalue.h, libinterp/corefcn/oct-map.cc, libinterp/corefcn/oct-map.h, libinterp/corefcn/oct-obj.h, libinterp/corefcn/oct-prcstrm.h, libinterp/corefcn/oct-stdstrm.h, libinterp/corefcn/oct-stream.cc, libinterp/corefcn/oct-stream.h, libinterp/corefcn/octave-link.cc, libinterp/corefcn/octave-link.h, libinterp/corefcn/pager.cc, libinterp/corefcn/pinv.cc, libinterp/corefcn/pr-output.cc, libinterp/corefcn/procstream.h, libinterp/corefcn/profiler.cc, libinterp/corefcn/pt-jit.cc, libinterp/corefcn/pt-jit.h, libinterp/corefcn/quad.cc, libinterp/corefcn/quadcc.cc, libinterp/corefcn/qz.cc, libinterp/corefcn/rand.cc, libinterp/corefcn/rcond.cc, libinterp/corefcn/regexp.cc, libinterp/corefcn/schur.cc, libinterp/corefcn/sighandlers.cc, libinterp/corefcn/sighandlers.h, libinterp/corefcn/sparse-xdiv.cc, libinterp/corefcn/sparse-xdiv.h, libinterp/corefcn/sparse-xpow.cc, libinterp/corefcn/sparse.cc, libinterp/corefcn/spparms.cc, libinterp/corefcn/sqrtm.cc, libinterp/corefcn/str2double.cc, libinterp/corefcn/strfind.cc, libinterp/corefcn/strfns.cc, libinterp/corefcn/sub2ind.cc, libinterp/corefcn/svd.cc, libinterp/corefcn/syl.cc, libinterp/corefcn/symtab.cc, libinterp/corefcn/symtab.h, libinterp/corefcn/syscalls.cc, libinterp/corefcn/sysdep.cc, libinterp/corefcn/sysdep.h, libinterp/corefcn/time.cc, libinterp/corefcn/toplev.cc, libinterp/corefcn/toplev.h, libinterp/corefcn/tril.cc, libinterp/corefcn/txt-eng-ft.cc, libinterp/corefcn/txt-eng-ft.h, libinterp/corefcn/txt-eng.h, libinterp/corefcn/typecast.cc, libinterp/corefcn/urlwrite.cc, libinterp/corefcn/utils.cc, libinterp/corefcn/variables.cc, libinterp/corefcn/variables.h, libinterp/corefcn/xdiv.cc, libinterp/corefcn/xdiv.h, libinterp/corefcn/xnorm.h, libinterp/corefcn/xpow.cc, libinterp/corefcn/xpow.h, libinterp/corefcn/zfstream.cc, libinterp/corefcn/zfstream.h, libinterp/dldfcn/__delaunayn__.cc, libinterp/dldfcn/__dsearchn__.cc, libinterp/dldfcn/__eigs__.cc, libinterp/dldfcn/__fltk_uigetfile__.cc, libinterp/dldfcn/__glpk__.cc, libinterp/dldfcn/__init_fltk__.cc, libinterp/dldfcn/__init_gnuplot__.cc, libinterp/dldfcn/__magick_read__.cc, libinterp/dldfcn/__voronoi__.cc, libinterp/dldfcn/amd.cc, libinterp/dldfcn/ccolamd.cc, libinterp/dldfcn/chol.cc, libinterp/dldfcn/colamd.cc, libinterp/dldfcn/convhulln.cc, libinterp/dldfcn/dmperm.cc, libinterp/dldfcn/fftw.cc, libinterp/dldfcn/qr.cc, libinterp/dldfcn/symbfact.cc, libinterp/dldfcn/symrcm.cc, libinterp/dldfcn/tsearch.cc, libinterp/octave-value/ov-base-diag.cc, libinterp/octave-value/ov-base-diag.h, libinterp/octave-value/ov-base-int.cc, libinterp/octave-value/ov-base-int.h, libinterp/octave-value/ov-base-mat.h, libinterp/octave-value/ov-base-scalar.cc, libinterp/octave-value/ov-base-scalar.h, libinterp/octave-value/ov-base-sparse.cc, libinterp/octave-value/ov-base-sparse.h, libinterp/octave-value/ov-base.cc, libinterp/octave-value/ov-base.h, libinterp/octave-value/ov-bool-mat.cc, libinterp/octave-value/ov-bool-mat.h, libinterp/octave-value/ov-bool-sparse.cc, libinterp/octave-value/ov-bool-sparse.h, libinterp/octave-value/ov-bool.cc, libinterp/octave-value/ov-bool.h, libinterp/octave-value/ov-builtin.cc, libinterp/octave-value/ov-builtin.h, libinterp/octave-value/ov-cell.cc, libinterp/octave-value/ov-cell.h, libinterp/octave-value/ov-ch-mat.cc, libinterp/octave-value/ov-ch-mat.h, libinterp/octave-value/ov-class.cc, libinterp/octave-value/ov-class.h, libinterp/octave-value/ov-colon.h, libinterp/octave-value/ov-complex.cc, libinterp/octave-value/ov-complex.h, libinterp/octave-value/ov-cx-diag.cc, libinterp/octave-value/ov-cx-diag.h, libinterp/octave-value/ov-cx-mat.cc, libinterp/octave-value/ov-cx-mat.h, libinterp/octave-value/ov-cx-sparse.cc, libinterp/octave-value/ov-cx-sparse.h, libinterp/octave-value/ov-dld-fcn.h, libinterp/octave-value/ov-fcn-handle.cc, libinterp/octave-value/ov-fcn-handle.h, libinterp/octave-value/ov-fcn-inline.cc, libinterp/octave-value/ov-fcn-inline.h, libinterp/octave-value/ov-fcn.h, libinterp/octave-value/ov-float.cc, libinterp/octave-value/ov-float.h, libinterp/octave-value/ov-flt-complex.cc, libinterp/octave-value/ov-flt-complex.h, libinterp/octave-value/ov-flt-cx-diag.cc, libinterp/octave-value/ov-flt-cx-diag.h, libinterp/octave-value/ov-flt-cx-mat.cc, libinterp/octave-value/ov-flt-cx-mat.h, libinterp/octave-value/ov-flt-re-diag.cc, libinterp/octave-value/ov-flt-re-diag.h, libinterp/octave-value/ov-flt-re-mat.cc, libinterp/octave-value/ov-flt-re-mat.h, libinterp/octave-value/ov-int16.cc, libinterp/octave-value/ov-int32.cc, libinterp/octave-value/ov-int64.cc, libinterp/octave-value/ov-int8.cc, libinterp/octave-value/ov-intx.h, libinterp/octave-value/ov-java.cc, libinterp/octave-value/ov-lazy-idx.h, libinterp/octave-value/ov-mex-fcn.cc, libinterp/octave-value/ov-mex-fcn.h, libinterp/octave-value/ov-null-mat.cc, libinterp/octave-value/ov-null-mat.h, libinterp/octave-value/ov-oncleanup.cc, libinterp/octave-value/ov-perm.cc, libinterp/octave-value/ov-perm.h, libinterp/octave-value/ov-range.cc, libinterp/octave-value/ov-range.h, libinterp/octave-value/ov-re-diag.cc, libinterp/octave-value/ov-re-diag.h, libinterp/octave-value/ov-re-mat.cc, libinterp/octave-value/ov-re-mat.h, libinterp/octave-value/ov-re-sparse.cc, libinterp/octave-value/ov-re-sparse.h, libinterp/octave-value/ov-scalar.cc, libinterp/octave-value/ov-scalar.h, libinterp/octave-value/ov-str-mat.cc, libinterp/octave-value/ov-str-mat.h, libinterp/octave-value/ov-struct.cc, libinterp/octave-value/ov-struct.h, libinterp/octave-value/ov-type-conv.h, libinterp/octave-value/ov-typeinfo.cc, libinterp/octave-value/ov-typeinfo.h, libinterp/octave-value/ov-uint16.cc, libinterp/octave-value/ov-uint32.cc, libinterp/octave-value/ov-uint64.cc, libinterp/octave-value/ov-uint8.cc, libinterp/octave-value/ov-usr-fcn.cc, libinterp/octave-value/ov-usr-fcn.h, libinterp/octave-value/ov.cc, libinterp/octave-value/ov.h, libinterp/octave.cc, libinterp/operators/op-b-bm.cc, libinterp/operators/op-b-sbm.cc, libinterp/operators/op-bm-b.cc, libinterp/operators/op-bm-bm.cc, libinterp/operators/op-cdm-cdm.cc, libinterp/operators/op-chm.cc, libinterp/operators/op-class.cc, libinterp/operators/op-cm-cm.cc, libinterp/operators/op-cm-cs.cc, libinterp/operators/op-cm-s.cc, libinterp/operators/op-cm-scm.cc, libinterp/operators/op-cm-sm.cc, libinterp/operators/op-cs-cm.cc, libinterp/operators/op-cs-cs.cc, libinterp/operators/op-cs-scm.cc, libinterp/operators/op-cs-sm.cc, libinterp/operators/op-dm-dm.cc, libinterp/operators/op-dm-scm.cc, libinterp/operators/op-double-conv.cc, libinterp/operators/op-fcdm-fcdm.cc, libinterp/operators/op-fcm-fcm.cc, libinterp/operators/op-fcm-fcs.cc, libinterp/operators/op-fcm-fm.cc, libinterp/operators/op-fcm-fs.cc, libinterp/operators/op-fcs-fcm.cc, libinterp/operators/op-fcs-fcs.cc, libinterp/operators/op-fcs-fm.cc, libinterp/operators/op-fcs-fs.cc, libinterp/operators/op-fdm-fdm.cc, libinterp/operators/op-float-conv.cc, libinterp/operators/op-fm-fcm.cc, libinterp/operators/op-fm-fcs.cc, libinterp/operators/op-fm-fm.cc, libinterp/operators/op-fm-fs.cc, libinterp/operators/op-fs-fcm.cc, libinterp/operators/op-fs-fcs.cc, libinterp/operators/op-fs-fm.cc, libinterp/operators/op-fs-fs.cc, libinterp/operators/op-m-cm.cc, libinterp/operators/op-m-cs.cc, libinterp/operators/op-m-m.cc, libinterp/operators/op-m-s.cc, libinterp/operators/op-m-scm.cc, libinterp/operators/op-m-sm.cc, libinterp/operators/op-pm-scm.cc, libinterp/operators/op-range.cc, libinterp/operators/op-s-cm.cc, libinterp/operators/op-s-cs.cc, libinterp/operators/op-s-scm.cc, libinterp/operators/op-sbm-b.cc, libinterp/operators/op-sbm-bm.cc, libinterp/operators/op-sbm-sbm.cc, libinterp/operators/op-scm-cm.cc, libinterp/operators/op-scm-cs.cc, libinterp/operators/op-scm-m.cc, libinterp/operators/op-scm-s.cc, libinterp/operators/op-scm-scm.cc, libinterp/operators/op-scm-sm.cc, libinterp/operators/op-sm-cm.cc, libinterp/operators/op-sm-m.cc, libinterp/operators/op-sm-s.cc, libinterp/operators/op-sm-scm.cc, libinterp/operators/op-sm-sm.cc, libinterp/operators/op-str-m.cc, libinterp/operators/op-str-s.cc, libinterp/operators/op-str-str.cc, libinterp/operators/ops.h, libinterp/parse-tree/lex.h, libinterp/parse-tree/parse.h, libinterp/parse-tree/pt-arg-list.cc, libinterp/parse-tree/pt-arg-list.h, libinterp/parse-tree/pt-assign.cc, libinterp/parse-tree/pt-assign.h, libinterp/parse-tree/pt-binop.cc, libinterp/parse-tree/pt-binop.h, libinterp/parse-tree/pt-bp.h, libinterp/parse-tree/pt-cbinop.cc, libinterp/parse-tree/pt-check.cc, libinterp/parse-tree/pt-colon.cc, libinterp/parse-tree/pt-colon.h, libinterp/parse-tree/pt-const.cc, libinterp/parse-tree/pt-decl.cc, libinterp/parse-tree/pt-decl.h, libinterp/parse-tree/pt-eval.cc, libinterp/parse-tree/pt-except.h, libinterp/parse-tree/pt-exp.h, libinterp/parse-tree/pt-fcn-handle.cc, libinterp/parse-tree/pt-id.cc, libinterp/parse-tree/pt-id.h, libinterp/parse-tree/pt-idx.cc, libinterp/parse-tree/pt-idx.h, libinterp/parse-tree/pt-loop.h, libinterp/parse-tree/pt-mat.cc, libinterp/parse-tree/pt-misc.cc, libinterp/parse-tree/pt-misc.h, libinterp/parse-tree/pt-pr-code.cc, libinterp/parse-tree/pt-select.h, libinterp/parse-tree/pt-stmt.h, libinterp/parse-tree/token.h, libinterp/version.cc: Use GNU style coding conventions for code in libinterp/
author Rik <rik@octave.org>
date Mon, 28 Oct 2013 19:51:46 -0700
parents d63878346099
children 6a71e5030df5 60562e5c8bfb
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1 /*
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2
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3 Copyright (C) 2009-2013 VZLU Prague
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include "f77-fcn.h"
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28 #include "mx-base.h"
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29 #include "error.h"
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30 #include "defun.h"
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31 #include "parse.h"
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32
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33 extern "C"
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34 {
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35 F77_RET_T
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36 F77_FUNC (ddot3, DDOT3) (const octave_idx_type&, const octave_idx_type&,
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37 const octave_idx_type&, const double*,
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38 const double*, double*);
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39
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40 F77_RET_T
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41 F77_FUNC (sdot3, SDOT3) (const octave_idx_type&, const octave_idx_type&,
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42 const octave_idx_type&, const float*,
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43 const float*, float*);
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44
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45 F77_RET_T
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46 F77_FUNC (zdotc3, ZDOTC3) (const octave_idx_type&, const octave_idx_type&,
11518
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47 const octave_idx_type&, const Complex*,
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diff changeset
48 const Complex*, Complex*);
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49
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50 F77_RET_T
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51 F77_FUNC (cdotc3, CDOTC3) (const octave_idx_type&, const octave_idx_type&,
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52 const octave_idx_type&, const FloatComplex*,
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53 const FloatComplex*, FloatComplex*);
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54
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55 F77_RET_T
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56 F77_FUNC (dmatm3, DMATM3) (const octave_idx_type&, const octave_idx_type&,
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57 const octave_idx_type&, const octave_idx_type&,
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58 const double*, const double*, double*);
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59
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60 F77_RET_T
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61 F77_FUNC (smatm3, SMATM3) (const octave_idx_type&, const octave_idx_type&,
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62 const octave_idx_type&, const octave_idx_type&,
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63 const float*, const float*, float*);
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64
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65 F77_RET_T
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66 F77_FUNC (zmatm3, ZMATM3) (const octave_idx_type&, const octave_idx_type&,
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67 const octave_idx_type&, const octave_idx_type&,
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68 const Complex*, const Complex*, Complex*);
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69
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70 F77_RET_T
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71 F77_FUNC (cmatm3, CMATM3) (const octave_idx_type&, const octave_idx_type&,
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72 const octave_idx_type&, const octave_idx_type&,
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73 const FloatComplex*, const FloatComplex*,
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74 FloatComplex*);
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75 }
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76
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77 static void
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78 get_red_dims (const dim_vector& x, const dim_vector& y, int dim,
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diff changeset
79 dim_vector& z, octave_idx_type& m, octave_idx_type& n,
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diff changeset
80 octave_idx_type& k)
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81 {
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diff changeset
82 int nd = x.length ();
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83 assert (nd == y.length ());
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diff changeset
84 z = dim_vector::alloc (nd);
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diff changeset
85 m = 1, n = 1, k = 1;
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diff changeset
86 for (int i = 0; i < nd; i++)
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diff changeset
87 {
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diff changeset
88 if (i < dim)
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89 {
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90 z(i) = x(i);
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diff changeset
91 m *= x(i);
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92 }
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93 else if (i > dim)
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94 {
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diff changeset
95 z(i) = x(i);
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96 n *= x(i);
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97 }
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98 else
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99 {
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100 k = x(i);
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101 z(i) = 1;
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102 }
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103 }
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104 }
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105
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e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
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106 DEFUN (dot, args, ,
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107 "-*- texinfo -*-\n\
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108 @deftypefn {Built-in Function} {} dot (@var{x}, @var{y}, @var{dim})\n\
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109 Compute the dot product of two vectors. If @var{x} and @var{y}\n\
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110 are matrices, calculate the dot products along the first\n\
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111 non-singleton dimension. If the optional argument @var{dim} is\n\
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112 given, calculate the dot products along this dimension.\n\
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113 \n\
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114 This is equivalent to\n\
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115 @code{sum (conj (@var{X}) .* @var{Y}, @var{dim})},\n\
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116 but avoids forming a temporary array and is faster. When @var{X} and\n\
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117 @var{Y} are column vectors, the result is equivalent to\n\
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118 @code{@var{X}' * @var{Y}}.\n\
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119 @seealso{cross, divergence}\n\
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120 @end deftypefn")
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121 {
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122 octave_value retval;
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123 int nargin = args.length ();
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124
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125 if (nargin < 2 || nargin > 3)
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126 {
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127 print_usage ();
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128 return retval;
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129 }
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130
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131 octave_value argx = args(0), argy = args(1);
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132
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133 if (argx.is_numeric_type () && argy.is_numeric_type ())
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134 {
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135 dim_vector dimx = argx.dims (), dimy = argy.dims ();
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136 bool match = dimx == dimy;
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137 if (! match && nargin == 2
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138 && dimx.is_vector () && dimy.is_vector ())
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139 {
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diff changeset
140 // Change to column vectors.
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141 dimx = dimx.redim (1);
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diff changeset
142 argx = argx.reshape (dimx);
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143 dimy = dimy.redim (1);
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144 argy = argy.reshape (dimy);
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145 match = ! error_state;
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146 }
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147
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diff changeset
148 if (match)
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149 {
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diff changeset
150 int dim;
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151 if (nargin == 2)
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152 dim = dimx.first_non_singleton ();
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153 else
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154 dim = args(2).int_value (true) - 1;
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155
90bc0cc4518f implement compiled dot and blkmm
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diff changeset
156 if (error_state)
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157 ;
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158 else if (dim < 0)
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diff changeset
159 error ("dot: DIM must be a valid dimension");
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160 else
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161 {
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162 octave_idx_type m, n, k;
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diff changeset
163 dim_vector dimz;
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164 if (argx.is_complex_type () || argy.is_complex_type ())
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165 {
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166 if (argx.is_single_type () || argy.is_single_type ())
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167 {
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168 FloatComplexNDArray x = argx.float_complex_array_value ();
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169 FloatComplexNDArray y = argy.float_complex_array_value ();
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170 get_red_dims (dimx, dimy, dim, dimz, m, n, k);
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171 FloatComplexNDArray z(dimz);
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172 if (! error_state)
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173 F77_XFCN (cdotc3, CDOTC3, (m, n, k,
175b392e91fe Use GNU style coding conventions for code in libinterp/
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174 x.data (), y.data (),
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175 z.fortran_vec ()));
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176 retval = z;
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177 }
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178 else
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179 {
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180 ComplexNDArray x = argx.complex_array_value ();
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181 ComplexNDArray y = argy.complex_array_value ();
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182 get_red_dims (dimx, dimy, dim, dimz, m, n, k);
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diff changeset
183 ComplexNDArray z(dimz);
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184 if (! error_state)
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185 F77_XFCN (zdotc3, ZDOTC3, (m, n, k,
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186 x.data (), y.data (),
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187 z.fortran_vec ()));
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188 retval = z;
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189 }
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190 }
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191 else if (argx.is_float_type () && argy.is_float_type ())
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diff changeset
192 {
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193 if (argx.is_single_type () || argy.is_single_type ())
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194 {
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195 FloatNDArray x = argx.float_array_value ();
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196 FloatNDArray y = argy.float_array_value ();
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197 get_red_dims (dimx, dimy, dim, dimz, m, n, k);
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198 FloatNDArray z(dimz);
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199 if (! error_state)
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200 F77_XFCN (sdot3, SDOT3, (m, n, k, x.data (), y.data (),
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201 z.fortran_vec ()));
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202 retval = z;
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203 }
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204 else
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205 {
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206 NDArray x = argx.array_value ();
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207 NDArray y = argy.array_value ();
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208 get_red_dims (dimx, dimy, dim, dimz, m, n, k);
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209 NDArray z(dimz);
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210 if (! error_state)
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211 F77_XFCN (ddot3, DDOT3, (m, n, k, x.data (), y.data (),
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212 z.fortran_vec ()));
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213 retval = z;
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214 }
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215 }
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216 else
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217 {
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218 // Non-optimized evaluation.
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219 octave_value_list tmp;
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220 tmp(1) = dim + 1;
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221 tmp(0) = do_binary_op (octave_value::op_el_mul, argx, argy);
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222 if (! error_state)
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223 {
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224 tmp = feval ("sum", tmp, 1);
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225 if (! tmp.empty ())
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226 retval = tmp(0);
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227 }
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228 }
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229 }
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230 }
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231 else
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232 error ("dot: sizes of X and Y must match");
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233
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234 }
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235 else
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236 error ("dot: X and Y must be numeric");
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237
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238 return retval;
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239 }
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240
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241 /*
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242 %!assert (dot ([1, 2], [2, 3]), 8)
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243
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244 %!test
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245 %! x = [2, 1; 2, 1];
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246 %! y = [-0.5, 2; 0.5, -2];
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247 %! assert (dot (x, y), [0 0]);
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248
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249 %!test
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250 %! x = [1+i, 3-i; 1-i, 3-i];
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251 %! assert (dot (x, x), [4, 20]);
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252
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253 %!test
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254 %! x = int8 ([1 2]);
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255 %! y = int8 ([2 3]);
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256 %! assert (dot (x, y), 8);
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257
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258 %!test
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259 %! x = int8 ([1 2; 3 4]);
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260 %! y = int8 ([5 6; 7 8]);
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261 %! assert (dot (x, y), [26 44]);
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262 %! assert (dot (x, y, 2), [17; 53]);
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263 %! assert (dot (x, y, 3), [5 12; 21 32]);
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264
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265 */
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266
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267 DEFUN (blkmm, args, ,
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268 "-*- texinfo -*-\n\
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269 @deftypefn {Built-in Function} {} blkmm (@var{A}, @var{B})\n\
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270 Compute products of matrix blocks. The blocks are given as\n\
12572
dffd30f12752 Add blkmm function to documentation.
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271 2-dimensional subarrays of the arrays @var{A}, @var{B}.\n\
dffd30f12752 Add blkmm function to documentation.
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272 The size of @var{A} must have the form @code{[m,k,@dots{}]} and\n\
dffd30f12752 Add blkmm function to documentation.
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273 size of @var{B} must be @code{[k,n,@dots{}]}. The result is\n\
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274 then of size @code{[m,n,@dots{}]} and is computed as follows:\n\
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275 \n\
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276 @example\n\
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277 @group\n\
14360
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278 for i = 1:prod (size (@var{A})(3:end))\n\
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279 @var{C}(:,:,i) = @var{A}(:,:,i) * @var{B}(:,:,i)\n\
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280 endfor\n\
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281 @end group\n\
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282 @end example\n\
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283 @end deftypefn")
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284 {
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285 octave_value retval;
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286 int nargin = args.length ();
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287
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288 if (nargin != 2)
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289 {
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290 print_usage ();
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291 return retval;
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292 }
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293
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294 octave_value argx = args(0), argy = args(1);
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295
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296 if (argx.is_numeric_type () && argy.is_numeric_type ())
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297 {
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298 const dim_vector dimx = argx.dims (), dimy = argy.dims ();
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299 int nd = dimx.length ();
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300 octave_idx_type m = dimx(0), k = dimx(1), n = dimy(1), np = 1;
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301 bool match = dimy(0) == k && nd == dimy.length ();
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302 dim_vector dimz = dim_vector::alloc (nd);
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303 dimz(0) = m;
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304 dimz(1) = n;
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305 for (int i = 2; match && i < nd; i++)
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306 {
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307 match = match && dimx(i) == dimy(i);
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diff changeset
308 dimz(i) = dimx(i);
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diff changeset
309 np *= dimz(i);
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310 }
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311
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diff changeset
312 if (match)
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313 {
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314 if (argx.is_complex_type () || argy.is_complex_type ())
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diff changeset
315 {
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diff changeset
316 if (argx.is_single_type () || argy.is_single_type ())
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317 {
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318 FloatComplexNDArray x = argx.float_complex_array_value ();
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319 FloatComplexNDArray y = argy.float_complex_array_value ();
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diff changeset
320 FloatComplexNDArray z(dimz);
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321 if (! error_state)
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322 F77_XFCN (cmatm3, CMATM3, (m, n, k, np,
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diff changeset
323 x.data (), y.data (),
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diff changeset
324 z.fortran_vec ()));
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325 retval = z;
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326 }
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327 else
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328 {
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329 ComplexNDArray x = argx.complex_array_value ();
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330 ComplexNDArray y = argy.complex_array_value ();
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331 ComplexNDArray z(dimz);
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332 if (! error_state)
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333 F77_XFCN (zmatm3, ZMATM3, (m, n, k, np,
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334 x.data (), y.data (),
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335 z.fortran_vec ()));
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336 retval = z;
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337 }
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338 }
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339 else
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340 {
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341 if (argx.is_single_type () || argy.is_single_type ())
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342 {
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343 FloatNDArray x = argx.float_array_value ();
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344 FloatNDArray y = argy.float_array_value ();
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345 FloatNDArray z(dimz);
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346 if (! error_state)
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
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347 F77_XFCN (smatm3, SMATM3, (m, n, k, np,
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348 x.data (), y.data (),
9874
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349 z.fortran_vec ()));
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350 retval = z;
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351 }
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352 else
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353 {
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354 NDArray x = argx.array_value ();
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355 NDArray y = argy.array_value ();
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356 NDArray z(dimz);
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357 if (! error_state)
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358 F77_XFCN (dmatm3, DMATM3, (m, n, k, np,
175b392e91fe Use GNU style coding conventions for code in libinterp/
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359 x.data (), y.data (),
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360 z.fortran_vec ()));
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361 retval = z;
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362 }
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363 }
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364 }
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365 else
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dffd30f12752 Add blkmm function to documentation.
Rik <octave@nomad.inbox5.com>
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366 error ("blkmm: A and B dimensions don't match: (%s) and (%s)",
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367 dimx.str ().c_str (), dimy.str ().c_str ());
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368
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369 }
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370 else
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dffd30f12752 Add blkmm function to documentation.
Rik <octave@nomad.inbox5.com>
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371 error ("blkmm: A and B must be numeric");
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372
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373 return retval;
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374 }
12788
9f4b48b93f6d codesprint: Write test for dot.cc
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375
9f4b48b93f6d codesprint: Write test for dot.cc
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376 /*
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377 %!test
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378 %! x(:,:,1) = [1 2; 3 4];
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379 %! x(:,:,2) = [1 1; 1 1];
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380 %! z(:,:,1) = [7 10; 15 22];
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381 %! z(:,:,2) = [2 2; 2 2];
14501
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382 %! assert (blkmm (x,x), z);
12788
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diff changeset
383 */