Mercurial > hg > octave-lyh

annotate libinterp/corefcn/fftn.cc @ 17289:bc924baa2c4e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
doc: Add new @qcode macro for code samples which are quoted. Macro handles options ("on") or properties ("position") more elegantly than @code{"text"}. * doc/interpreter/macros.texi: Add new @qcode macro. * doc/interpreter/tips.txi: Add documentation about @qcode macro. * doc/interpreter/basics.txi, doc/interpreter/container.txi, doc/interpreter/emacs.txi, doc/interpreter/errors.txi, doc/interpreter/eval.txi, doc/interpreter/expr.txi, doc/interpreter/external.txi, doc/interpreter/func.txi, doc/interpreter/grammar.txi, doc/interpreter/image.txi, doc/interpreter/install.txi, doc/interpreter/interp.txi, doc/interpreter/io.txi, doc/interpreter/matrix.txi, doc/interpreter/numbers.txi, doc/interpreter/oop.txi, doc/interpreter/package.txi, doc/interpreter/plot.txi, doc/interpreter/quad.txi, doc/interpreter/sparse.txi, doc/interpreter/strings.txi, doc/interpreter/system.txi, doc/interpreter/vectorize.txi, libinterp/corefcn/balance.cc, libinterp/corefcn/bitfcns.cc, libinterp/corefcn/cellfun.cc, libinterp/corefcn/conv2.cc, libinterp/corefcn/data.cc, libinterp/corefcn/debug.cc, libinterp/corefcn/defaults.cc, libinterp/corefcn/dirfns.cc, libinterp/corefcn/dlmread.cc, libinterp/corefcn/error.cc, libinterp/corefcn/file-io.cc, libinterp/corefcn/find.cc, libinterp/corefcn/gammainc.cc, libinterp/corefcn/graphics.cc, libinterp/corefcn/help.cc, libinterp/corefcn/hex2num.cc, libinterp/corefcn/input.cc, libinterp/corefcn/load-path.cc, libinterp/corefcn/load-save.cc, libinterp/corefcn/ls-oct-ascii.cc, libinterp/corefcn/lu.cc, libinterp/corefcn/luinc.cc, libinterp/corefcn/matrix_type.cc, libinterp/corefcn/oct-hist.cc, libinterp/corefcn/pager.cc, libinterp/corefcn/pr-output.cc, libinterp/corefcn/pt-jit.cc, libinterp/corefcn/qz.cc, libinterp/corefcn/rand.cc, libinterp/corefcn/regexp.cc, libinterp/corefcn/schur.cc, libinterp/corefcn/sighandlers.cc, libinterp/corefcn/sparse.cc, libinterp/corefcn/spparms.cc, libinterp/corefcn/str2double.cc, libinterp/corefcn/svd.cc, libinterp/corefcn/symtab.cc, libinterp/corefcn/syscalls.cc, libinterp/corefcn/toplev.cc, libinterp/corefcn/tril.cc, libinterp/corefcn/typecast.cc, libinterp/corefcn/utils.cc, libinterp/corefcn/variables.cc, libinterp/dldfcn/__init_fltk__.cc, libinterp/dldfcn/chol.cc, libinterp/dldfcn/colamd.cc, libinterp/dldfcn/fftw.cc, libinterp/dldfcn/qr.cc, libinterp/dldfcn/symbfact.cc, libinterp/octave-value/ov-base.cc, libinterp/octave-value/ov-fcn-handle.cc, libinterp/octave-value/ov-fcn-inline.cc, libinterp/octave-value/ov-java.cc, libinterp/octave-value/ov-range.cc, libinterp/octave-value/ov-struct.cc, libinterp/octave-value/ov-usr-fcn.cc, libinterp/parse-tree/oct-parse.in.yy, libinterp/parse-tree/pt-binop.cc, libinterp/parse-tree/pt-eval.cc, libinterp/parse-tree/pt-mat.cc, scripts/@ftp/ftp.m, scripts/deprecated/java_convert_matrix.m, scripts/deprecated/java_debug.m, scripts/deprecated/java_unsigned_conversion.m, scripts/deprecated/shell_cmd.m, scripts/general/dblquad.m, scripts/general/display.m, scripts/general/genvarname.m, scripts/general/idivide.m, scripts/general/interp1.m, scripts/general/interp2.m, scripts/general/interp3.m, scripts/general/interpn.m, scripts/general/isa.m, scripts/general/profexplore.m, scripts/general/profile.m, scripts/general/quadgk.m, scripts/general/randi.m, scripts/general/structfun.m, scripts/general/subsindex.m, scripts/general/triplequad.m, scripts/geometry/griddata.m, scripts/geometry/griddata3.m, scripts/geometry/griddatan.m, scripts/geometry/voronoi.m, scripts/help/help.m, scripts/help/lookfor.m, scripts/image/cmpermute.m, scripts/image/colormap.m, scripts/image/image.m, scripts/image/imagesc.m, scripts/image/imfinfo.m, scripts/image/imformats.m, scripts/image/imread.m, scripts/image/imshow.m, scripts/image/imwrite.m, scripts/image/ind2gray.m, scripts/image/lines.m, scripts/image/rgb2ind.m, scripts/image/spinmap.m, scripts/io/dlmwrite.m, scripts/io/strread.m, scripts/io/textread.m, scripts/io/textscan.m, scripts/java/javaclasspath.m, scripts/java/usejava.m, scripts/miscellaneous/bzip2.m, scripts/miscellaneous/computer.m, scripts/miscellaneous/copyfile.m, scripts/miscellaneous/debug.m, scripts/miscellaneous/dos.m, scripts/miscellaneous/edit.m, scripts/miscellaneous/gzip.m, scripts/miscellaneous/license.m, scripts/miscellaneous/mkoctfile.m, scripts/miscellaneous/movefile.m, scripts/miscellaneous/parseparams.m, scripts/miscellaneous/unix.m, scripts/optimization/fminbnd.m, scripts/optimization/fminsearch.m, scripts/optimization/fminunc.m, scripts/optimization/fsolve.m, scripts/optimization/fzero.m, scripts/optimization/glpk.m, scripts/optimization/lsqnonneg.m, scripts/optimization/optimset.m, scripts/optimization/pqpnonneg.m, scripts/pkg/pkg.m, scripts/plot/allchild.m, scripts/plot/ancestor.m, scripts/plot/area.m, scripts/plot/axis.m, scripts/plot/bar.m, scripts/plot/barh.m, scripts/plot/box.m, scripts/plot/caxis.m, scripts/plot/cla.m, scripts/plot/clabel.m, scripts/plot/clf.m, scripts/plot/close.m, scripts/plot/colorbar.m, scripts/plot/daspect.m, scripts/plot/ezmesh.m, scripts/plot/ezmeshc.m, scripts/plot/ezsurf.m, scripts/plot/ezsurfc.m, scripts/plot/findall.m, scripts/plot/findobj.m, scripts/plot/gcbo.m, scripts/plot/gcf.m, scripts/plot/gco.m, scripts/plot/grid.m, scripts/plot/guihandles.m, scripts/plot/hdl2struct.m, scripts/plot/hidden.m, scripts/plot/hold.m, scripts/plot/isonormals.m, scripts/plot/isosurface.m, scripts/plot/legend.m, scripts/plot/mesh.m, scripts/plot/meshc.m, scripts/plot/meshz.m, scripts/plot/newplot.m, scripts/plot/orient.m, scripts/plot/pareto.m, scripts/plot/patch.m, scripts/plot/pbaspect.m, scripts/plot/pcolor.m, scripts/plot/plot.m, scripts/plot/print.m, scripts/plot/private/__add_default_menu__.m, scripts/plot/quiver.m, scripts/plot/quiver3.m, scripts/plot/refreshdata.m, scripts/plot/saveas.m, scripts/plot/scatter.m, scripts/plot/scatter3.m, scripts/plot/shading.m, scripts/plot/shrinkfaces.m, scripts/plot/slice.m, scripts/plot/stem.m, scripts/plot/stem3.m, scripts/plot/struct2hdl.m, scripts/plot/subplot.m, scripts/plot/surf.m, scripts/plot/surfc.m, scripts/plot/surfl.m, scripts/plot/tetramesh.m, scripts/plot/uigetfile.m, scripts/plot/uimenu.m, scripts/plot/uiputfile.m, scripts/plot/waterfall.m, scripts/plot/whitebg.m, scripts/plot/xlim.m, scripts/plot/ylim.m, scripts/plot/zlim.m, scripts/polynomial/conv.m, scripts/polynomial/polyout.m, scripts/polynomial/splinefit.m, scripts/set/ismember.m, scripts/set/powerset.m, scripts/set/setdiff.m, scripts/set/union.m, scripts/set/unique.m, scripts/signal/detrend.m, scripts/signal/filter2.m, scripts/signal/freqz.m, scripts/signal/periodogram.m, scripts/signal/spectral_adf.m, scripts/signal/spectral_xdf.m, scripts/sparse/eigs.m, scripts/sparse/svds.m, scripts/specfun/legendre.m, scripts/special-matrix/gallery.m, scripts/statistics/base/mean.m, scripts/statistics/base/moment.m, scripts/statistics/tests/cor_test.m, scripts/statistics/tests/kolmogorov_smirnov_test.m, scripts/statistics/tests/kolmogorov_smirnov_test_2.m, scripts/statistics/tests/kruskal_wallis_test.m, scripts/statistics/tests/prop_test_2.m, scripts/statistics/tests/sign_test.m, scripts/statistics/tests/t_test.m, scripts/statistics/tests/t_test_2.m, scripts/statistics/tests/t_test_regression.m, scripts/statistics/tests/u_test.m, scripts/statistics/tests/var_test.m, scripts/statistics/tests/welch_test.m, scripts/statistics/tests/wilcoxon_test.m, scripts/statistics/tests/z_test.m, scripts/statistics/tests/z_test_2.m, scripts/strings/base2dec.m, scripts/strings/index.m, scripts/strings/isstrprop.m, scripts/strings/mat2str.m, scripts/strings/regexptranslate.m, scripts/strings/rindex.m, scripts/strings/str2num.m, scripts/strings/strcat.m, scripts/strings/strjust.m, scripts/strings/strmatch.m, scripts/strings/validatestring.m, scripts/testfun/demo.m, scripts/testfun/example.m, scripts/testfun/test.m, scripts/time/addtodate.m, scripts/time/asctime.m, scripts/time/datestr.m, scripts/time/datetick.m, scripts/time/weekday.m, scripts/ui/errordlg.m, scripts/ui/helpdlg.m, scripts/ui/inputdlg.m, scripts/ui/listdlg.m, scripts/ui/msgbox.m, scripts/ui/questdlg.m, scripts/ui/warndlg.m: Use new @qcode macro.
author Rik <rik@octave.org>
date Mon, 19 Aug 2013 20:46:38 -0700
parents 2fc554ffbc28
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
1 /*
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
2
14138
72c96de7a403 maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
parents: 12160
diff changeset
3 Copyright (C) 2004-2012 David Bateman
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
4
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
5 This file is part of Octave.
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
6
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
7 Octave is free software; you can redistribute it and/or modify it
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
8 under the terms of the GNU General Public License as published by the
7016
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 7007
diff changeset
9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 7007
diff changeset
10 option) any later version.
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
11
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
12 Octave is distributed in the hope that it will be useful, but WITHOUT
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
15 for more details.
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
16
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
17 You should have received a copy of the GNU General Public License
7016
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 7007
diff changeset
18 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
jwe
parents: 7007
diff changeset
19 <http://www.gnu.org/licenses/>.
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
20
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
21 */
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
22
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
23 #ifdef HAVE_CONFIG_H
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
24 #include <config.h>
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
25 #endif
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
26
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
27 #include "lo-mappers.h"
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
28
15039
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14138
diff changeset
29 #include "defun.h"
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
30 #include "error.h"
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
31 #include "gripes.h"
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
32 #include "oct-obj.h"
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
33 #include "utils.h"
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
34
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
35 // This function should be merged with Fifft.
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
36
9523
0ce82753dd72 more configure changes for libraries
John W. Eaton <jwe@octave.org>
parents: 9072
diff changeset
37 #if defined (HAVE_FFTW)
9072
bd8e388043c4 Cleanup documentation for signal.texi, image.texi, audio.texi
Rik <rdrider0-list@yahoo.com>
parents: 9064
diff changeset
38 #define FFTSRC "@sc{fftw}"
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
39 #else
9072
bd8e388043c4 Cleanup documentation for signal.texi, image.texi, audio.texi
Rik <rdrider0-list@yahoo.com>
parents: 9064
diff changeset
40 #define FFTSRC "@sc{fftpack}"
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
41 #endif
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
42
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
43 static octave_value
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
44 do_fftn (const octave_value_list &args, const char *fcn, int type)
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
45 {
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
46 octave_value retval;
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
47
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
48 int nargin = args.length ();
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
49
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
50 if (nargin < 1 || nargin > 2)
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
51 {
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5642
diff changeset
52 print_usage ();
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
53 return retval;
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
54 }
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
55
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
56 octave_value arg = args(0);
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
57 dim_vector dims = arg.dims ();
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
58
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
59 for (int i = 0; i < dims.length (); i++)
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
60 if (dims(i) < 0)
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
61 return retval;
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
62
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
63 if (nargin > 1)
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
64 {
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
65 Matrix val = args(1).matrix_value ();
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
66 if (val.rows () > val.columns ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
67 val = val.transpose ();
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
68
4849
a3440ff5eb14 [project @ 2004-04-06 15:23:56 by jwe]
jwe
parents: 4787
diff changeset
69 if (error_state || val.columns () != dims.length () || val.rows () != 1)
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
70 error ("%s: SIZE must be a vector of length dim", fcn);
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
71 else
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
72 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
73 for (int i = 0; i < dims.length (); i++)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
74 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
75 if (xisnan (val(i,0)))
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
76 error ("%s: SIZE has invalid NaN entries", fcn);
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
77 else if (NINTbig (val(i,0)) < 0)
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
78 error ("%s: all dimensions in SIZE must be greater than zero", fcn);
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
79 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
80 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
81 dims(i) = NINTbig(val(i,0));
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
82 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
83 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
84 }
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
85 }
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
86
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
87 if (error_state)
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
88 return retval;
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
89
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
90 if (dims.all_zero ())
7924
4976f66d469b miscellaneous cleanup
John W. Eaton <jwe@octave.org>
parents: 7814
diff changeset
91 {
4976f66d469b miscellaneous cleanup
John W. Eaton <jwe@octave.org>
parents: 7814
diff changeset
92 if (arg.is_single_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
93 return octave_value (FloatMatrix ());
7924
4976f66d469b miscellaneous cleanup
John W. Eaton <jwe@octave.org>
parents: 7814
diff changeset
94 else
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
95 return octave_value (Matrix ());
7924
4976f66d469b miscellaneous cleanup
John W. Eaton <jwe@octave.org>
parents: 7814
diff changeset
96 }
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
97
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
98 if (arg.is_single_type ())
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
99 {
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
100 if (arg.is_real_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
101 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
102 FloatNDArray nda = arg.float_array_value ();
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
103
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
104 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
105 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
106 nda.resize (dims, 0.0);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
107 retval = (type != 0 ? nda.ifourierNd () : nda.fourierNd ());
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
108 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
109 }
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
110 else
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
111 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
112 FloatComplexNDArray cnda = arg.float_complex_array_value ();
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
113
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
114 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
115 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
116 cnda.resize (dims, 0.0);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
117 retval = (type != 0 ? cnda.ifourierNd () : cnda.fourierNd ());
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
118 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
119 }
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
120 }
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
121 else
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
122 {
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
123 if (arg.is_real_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
124 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
125 NDArray nda = arg.array_value ();
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
126
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
127 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
128 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
129 nda.resize (dims, 0.0);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
130 retval = (type != 0 ? nda.ifourierNd () : nda.fourierNd ());
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
131 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
132 }
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
133 else if (arg.is_complex_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
134 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
135 ComplexNDArray cnda = arg.complex_array_value ();
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
136
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
137 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
138 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
139 cnda.resize (dims, 0.0);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
140 retval = (type != 0 ? cnda.ifourierNd () : cnda.fourierNd ());
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
141 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
142 }
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
143 else
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
144 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
145 gripe_wrong_type_arg (fcn, arg);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 9523
diff changeset
146 }
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
147 }
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
148
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
149 return retval;
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
150 }
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
151
15039
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14138
diff changeset
152 DEFUN (fftn, args, ,
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
153 "-*- texinfo -*-\n\
15039
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14138
diff changeset
154 @deftypefn {Built-in Function} {} fftn (@var{A})\n\
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14138
diff changeset
155 @deftypefnx {Built-in Function} {} fftn (@var{A}, @var{size})\n\
12160
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
156 Compute the N-dimensional discrete Fourier transform of @var{A} using\n\
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
157 a Fast Fourier Transform (FFT) algorithm.\n\
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
158 \n\
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
159 The optional vector argument @var{size} may be used specify the\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
160 dimensions of the array to be used. If an element of @var{size} is\n\
12160
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
161 smaller than the corresponding dimension of @var{A}, then the dimension of\n\
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
162 @var{A} is truncated prior to performing the FFT@. Otherwise, if an element\n\
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
163 of @var{size} is larger than the corresponding dimension then @var{A}\n\
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
164 is resized and padded with zeros.\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
165 @seealso{ifftn, fft, fft2, fftw}\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5307
diff changeset
166 @end deftypefn")
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
167 {
4782
3dfdf6f36854 [project @ 2004-02-17 16:23:22 by jwe]
jwe
parents: 4773
diff changeset
168 return do_fftn (args, "fftn", 0);
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
169 }
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
170
15039
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14138
diff changeset
171 DEFUN (ifftn, args, ,
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
172 "-*- texinfo -*-\n\
15039
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14138
diff changeset
173 @deftypefn {Built-in Function} {} ifftn (@var{A})\n\
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14138
diff changeset
174 @deftypefnx {Built-in Function} {} ifftn (@var{A}, @var{size})\n\
12160
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
175 Compute the inverse N-dimensional discrete Fourier transform of @var{A}\n\
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
176 using a Fast Fourier Transform (FFT) algorithm.\n\
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
177 \n\
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
178 The optional vector argument @var{size} may be used specify the\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
179 dimensions of the array to be used. If an element of @var{size} is\n\
12160
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
180 smaller than the corresponding dimension of @var{A}, then the dimension of\n\
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
181 @var{A} is truncated prior to performing the inverse FFT@. Otherwise, if an\n\
b64b82721062 Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
182 element of @var{size} is larger than the corresponding dimension then @var{A}\n\
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
183 is resized and padded with zeros.\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
184 @seealso{fftn, ifft, ifft2, fftw}\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5307
diff changeset
185 @end deftypefn")
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
186 {
4782
3dfdf6f36854 [project @ 2004-02-17 16:23:22 by jwe]
jwe
parents: 4773
diff changeset
187 return do_fftn (args, "ifftn", 1);
4773
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe]
jwe
parents:
diff changeset
188 }