Mercurial > octave
annotate libinterp/corefcn/fft2.cc @ 27919:1891570abac8
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2020.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Mon, 06 Jan 2020 22:29:51 -0500 |
parents | b442ec6dda5c |
children | bd51beb6205e |
rev | line source |
---|---|
2928 | 1 /* |
2 | |
27919
1891570abac8
update Octave Project Developers copyright for the new year
John W. Eaton <jwe@octave.org>
parents:
27918
diff
changeset
|
3 Copyright (C) 1996-2020 The Octave Project Developers |
27918
b442ec6dda5c
use centralized file for copyright info for individual contributors
John W. Eaton <jwe@octave.org>
parents:
26376
diff
changeset
|
4 |
b442ec6dda5c
use centralized file for copyright info for individual contributors
John W. Eaton <jwe@octave.org>
parents:
26376
diff
changeset
|
5 See the file COPYRIGHT.md in the top-level directory of this distribution |
b442ec6dda5c
use centralized file for copyright info for individual contributors
John W. Eaton <jwe@octave.org>
parents:
26376
diff
changeset
|
6 or <https://octave.org/COPYRIGHT.html/>. |
b442ec6dda5c
use centralized file for copyright info for individual contributors
John W. Eaton <jwe@octave.org>
parents:
26376
diff
changeset
|
7 |
2928 | 8 |
9 This file is part of Octave. | |
10 | |
24534
194eb4bd202b
maint: Update punctuation for GPL v3 license text.
Rik <rik@octave.org>
parents:
23582
diff
changeset
|
11 Octave is free software: you can redistribute it and/or modify it |
22755
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22737
diff
changeset
|
12 under the terms of the GNU General Public License as published by |
24534
194eb4bd202b
maint: Update punctuation for GPL v3 license text.
Rik <rik@octave.org>
parents:
23582
diff
changeset
|
13 the Free Software Foundation, either version 3 of the License, or |
22755
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22737
diff
changeset
|
14 (at your option) any later version. |
2928 | 15 |
22755
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22737
diff
changeset
|
16 Octave is distributed in the hope that it will be useful, but |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22737
diff
changeset
|
17 WITHOUT ANY WARRANTY; without even the implied warranty of |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22737
diff
changeset
|
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22737
diff
changeset
|
19 GNU General Public License for more details. |
2928 | 20 |
21 You should have received a copy of the GNU General Public License | |
7016 | 22 along with Octave; see the file COPYING. If not, see |
24534
194eb4bd202b
maint: Update punctuation for GPL v3 license text.
Rik <rik@octave.org>
parents:
23582
diff
changeset
|
23 <https://www.gnu.org/licenses/>. |
2928 | 24 |
25 */ | |
26 | |
21724
aba2e6293dd8
use "#if ..." consistently instead of "#ifdef" and "#ifndef"
John W. Eaton <jwe@octave.org>
parents:
21660
diff
changeset
|
27 #if defined (HAVE_CONFIG_H) |
21301
40de9f8f23a6
Use '#include "config.h"' rather than <config.h>.
Rik <rik@octave.org>
parents:
21200
diff
changeset
|
28 # include "config.h" |
2928 | 29 #endif |
30 | |
31 #include "lo-mappers.h" | |
32 | |
15039
e753177cde93
maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents:
14501
diff
changeset
|
33 #include "defun.h" |
2928 | 34 #include "error.h" |
21100
e39e05d90788
Switch gripe_XXX to either err_XXX or warn_XXX naming scheme.
Rik <rik@octave.org>
parents:
20940
diff
changeset
|
35 #include "errwarn.h" |
20940
48b2ad5ee801
maint: Rename oct-obj.[cc|h] to ovl.[cc|h] for clarity.
Rik <rik@octave.org>
parents:
20918
diff
changeset
|
36 #include "ovl.h" |
2928 | 37 #include "utils.h" |
38 | |
4773 | 39 // This function should be merged with Fifft. |
2928 | 40 |
4773 | 41 static octave_value |
23433
c9fab0bc983e
maint: Use convention 'int& x' for naming references.
Rik <rik@octave.org>
parents:
23220
diff
changeset
|
42 do_fft2 (const octave_value_list& args, const char *fcn, int type) |
2928 | 43 { |
44 int nargin = args.length (); | |
45 | |
46 if (nargin < 1 || nargin > 3) | |
20802
8bb38ba1bad6
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20555
diff
changeset
|
47 print_usage (); |
2928 | 48 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
49 octave_value retval; |
2928 | 50 octave_value arg = args(0); |
4773 | 51 dim_vector dims = arg.dims (); |
5275 | 52 octave_idx_type n_rows = -1; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
53 |
2928 | 54 if (nargin > 1) |
55 { | |
56 double dval = args(1).double_value (); | |
21782
2aef506f3fec
use namespace for lo-mappers.h functions
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
57 if (octave::math::isnan (dval)) |
11553
01f703952eff
Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
58 error ("%s: number of rows (N) cannot be NaN", fcn); |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
59 |
21782
2aef506f3fec
use namespace for lo-mappers.h functions
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
60 n_rows = octave::math::nint_big (dval); |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
61 if (n_rows < 0) |
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
62 error ("%s: number of rows (N) must be greater than zero", fcn); |
2928 | 63 } |
64 | |
5275 | 65 octave_idx_type n_cols = -1; |
2928 | 66 if (nargin > 2) |
67 { | |
68 double dval = args(2).double_value (); | |
21782
2aef506f3fec
use namespace for lo-mappers.h functions
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
69 if (octave::math::isnan (dval)) |
11553
01f703952eff
Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
70 error ("%s: number of columns (M) cannot be NaN", fcn); |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
71 |
21782
2aef506f3fec
use namespace for lo-mappers.h functions
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
72 n_cols = octave::math::nint_big (dval); |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
73 if (n_cols < 0) |
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
74 error ("%s: number of columns (M) must be greater than zero", fcn); |
2928 | 75 } |
76 | |
21660
53728df3e4c9
maint: for clarity, call ndims() rather than length() on dimension vectors.
Rik <rik@octave.org>
parents:
21301
diff
changeset
|
77 for (int i = 0; i < dims.ndims (); i++) |
4773 | 78 if (dims(i) < 0) |
2928 | 79 return retval; |
80 | |
4773 | 81 if (n_rows < 0) |
20218
b2100e1659ac
maint: Use cuddled parentheses when indexing dimension_vectors.
Rik <rik@octave.org>
parents:
20172
diff
changeset
|
82 n_rows = dims(0); |
4773 | 83 else |
20218
b2100e1659ac
maint: Use cuddled parentheses when indexing dimension_vectors.
Rik <rik@octave.org>
parents:
20172
diff
changeset
|
84 dims(0) = n_rows; |
2928 | 85 |
4773 | 86 if (n_cols < 0) |
20218
b2100e1659ac
maint: Use cuddled parentheses when indexing dimension_vectors.
Rik <rik@octave.org>
parents:
20172
diff
changeset
|
87 n_cols = dims(1); |
4773 | 88 else |
20218
b2100e1659ac
maint: Use cuddled parentheses when indexing dimension_vectors.
Rik <rik@octave.org>
parents:
20172
diff
changeset
|
89 dims(1) = n_cols; |
4773 | 90 |
91 if (dims.all_zero () || n_rows == 0 || n_cols == 0) | |
7924 | 92 { |
93 if (arg.is_single_type ()) | |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
94 return octave_value (FloatMatrix ()); |
7924 | 95 else |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
96 return octave_value (Matrix ()); |
7924 | 97 } |
2928 | 98 |
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7017
diff
changeset
|
99 if (arg.is_single_type ()) |
2928 | 100 { |
23582
0cc2011d800e
maint: Deprecate is_real_type and replace with isreal.
Rik <rik@octave.org>
parents:
23581
diff
changeset
|
101 if (arg.isreal ()) |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
102 { |
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
103 FloatNDArray nda = arg.float_array_value (); |
2928 | 104 |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20218
diff
changeset
|
105 nda.resize (dims, 0.0); |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20218
diff
changeset
|
106 retval = (type != 0 ? nda.ifourier2d () : nda.fourier2d ()); |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
107 } |
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7017
diff
changeset
|
108 else |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
109 { |
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
110 FloatComplexNDArray cnda = arg.float_complex_array_value (); |
2928 | 111 |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20218
diff
changeset
|
112 cnda.resize (dims, 0.0); |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20218
diff
changeset
|
113 retval = (type != 0 ? cnda.ifourier2d () : cnda.fourier2d ()); |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
114 } |
2928 | 115 } |
116 else | |
117 { | |
23582
0cc2011d800e
maint: Deprecate is_real_type and replace with isreal.
Rik <rik@octave.org>
parents:
23581
diff
changeset
|
118 if (arg.isreal ()) |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
119 { |
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
120 NDArray nda = arg.array_value (); |
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7017
diff
changeset
|
121 |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20218
diff
changeset
|
122 nda.resize (dims, 0.0); |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20218
diff
changeset
|
123 retval = (type != 0 ? nda.ifourier2d () : nda.fourier2d ()); |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
124 } |
23581
c3075ae020e1
maint: Deprecate is_complex_type and replace with iscomplex.
Rik <rik@octave.org>
parents:
23433
diff
changeset
|
125 else if (arg.iscomplex ()) |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
126 { |
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
127 ComplexNDArray cnda = arg.complex_array_value (); |
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7017
diff
changeset
|
128 |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20218
diff
changeset
|
129 cnda.resize (dims, 0.0); |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20218
diff
changeset
|
130 retval = (type != 0 ? cnda.ifourier2d () : cnda.fourier2d ()); |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9890
diff
changeset
|
131 } |
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7017
diff
changeset
|
132 else |
21100
e39e05d90788
Switch gripe_XXX to either err_XXX or warn_XXX naming scheme.
Rik <rik@octave.org>
parents:
20940
diff
changeset
|
133 err_wrong_type_arg (fcn, arg); |
2928 | 134 } |
135 | |
136 return retval; | |
137 } | |
138 | |
15039
e753177cde93
maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents:
14501
diff
changeset
|
139 DEFUN (fft2, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
140 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
141 @deftypefn {} {} fft2 (@var{A}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
142 @deftypefnx {} {} fft2 (@var{A}, @var{m}, @var{n}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
143 Compute the two-dimensional discrete Fourier transform of @var{A} using |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
144 a Fast Fourier Transform (FFT) algorithm. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
145 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
146 The optional arguments @var{m} and @var{n} may be used specify the number of |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
147 rows and columns of @var{A} to use. If either of these is larger than the |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
148 size of @var{A}, @var{A} is resized and padded with zeros. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
149 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
150 If @var{A} is a multi-dimensional matrix, each two-dimensional sub-matrix |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
151 of @var{A} is treated separately. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
152 @seealso{ifft2, fft, fftn, fftw} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
153 @end deftypefn */) |
4773 | 154 { |
4782 | 155 return do_fft2 (args, "fft2", 0); |
4773 | 156 } |
157 | |
158 | |
15039
e753177cde93
maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents:
14501
diff
changeset
|
159 DEFUN (ifft2, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
160 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
161 @deftypefn {} {} ifft2 (@var{A}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
162 @deftypefnx {} {} ifft2 (@var{A}, @var{m}, @var{n}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
163 Compute the inverse two-dimensional discrete Fourier transform of @var{A} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
164 using a Fast Fourier Transform (FFT) algorithm. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
165 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
166 The optional arguments @var{m} and @var{n} may be used specify the number of |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
167 rows and columns of @var{A} to use. If either of these is larger than the |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
168 size of @var{A}, @var{A} is resized and padded with zeros. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
169 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
170 If @var{A} is a multi-dimensional matrix, each two-dimensional sub-matrix |
24575
93714122ed59
doc: Fixes for signal, image, audio, and OOP chapters (bug #52844).
Rik <rik@octave.org>
parents:
23219
diff
changeset
|
171 of @var{A} is treated separately. |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
172 @seealso{fft2, ifft, ifftn, fftw} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
173 @end deftypefn */) |
4773 | 174 { |
4782 | 175 return do_fft2 (args, "ifft2", 1); |
4773 | 176 } |
177 | |
2928 | 178 /* |
22737
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
179 ## Author: David Billinghurst (David.Billinghurst@riotinto.com.au) |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
180 ## Comalco Research and Technology |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
181 ## 02 May 2000 |
25586 | 182 %!testif HAVE_FFTW |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
183 %! M = 16; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
184 %! N = 8; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
185 %! |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
186 %! m = 5; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
187 %! n = 3; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
188 %! |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
189 %! x = 2*pi*(0:1:M-1)/M; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
190 %! y = 2*pi*(0:1:N-1)/N; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
191 %! sx = cos (m*x); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
192 %! sy = sin (n*y); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
193 %! s = kron (sx',sy); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
194 %! S = fft2 (s); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
195 %! answer = kron (fft (sx)', fft (sy)); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
196 %! assert (S, answer, 4*M*N*eps); |
7814
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7789
diff
changeset
|
197 |
22737
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
198 ## Author: David Billinghurst (David.Billinghurst@riotinto.com.au) |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
199 ## Comalco Research and Technology |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
200 ## 02 May 2000 |
25586 | 201 %!testif HAVE_FFTW |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
202 %! M = 12; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
203 %! N = 7; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
204 %! |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
205 %! m = 3; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
206 %! n = 2; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
207 %! |
7814
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7789
diff
changeset
|
208 %! x = 2*pi*(0:1:M-1)/M; |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7789
diff
changeset
|
209 %! y = 2*pi*(0:1:N-1)/N; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
210 %! |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
211 %! sx = cos (m*x); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
212 %! sy = cos (n*y); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
213 %! |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
214 %! S = kron (fft (sx)', fft (sy)); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
215 %! answer = kron (sx', sy); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
216 %! s = ifft2 (S); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
217 %! |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
218 %! assert (s, answer, 30*eps); |
7814
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7789
diff
changeset
|
219 |
22737
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
220 ## Author: David Billinghurst (David.Billinghurst@riotinto.com.au) |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
221 ## Comalco Research and Technology |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
222 ## 02 May 2000 |
25586 | 223 %!testif HAVE_FFTW |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
224 %! M = 16; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
225 %! N = 8; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
226 %! |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
227 %! m = 5; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
228 %! n = 3; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
229 %! |
7814
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7789
diff
changeset
|
230 %! x = 2*pi*(0:1:M-1)/M; |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7789
diff
changeset
|
231 %! y = 2*pi*(0:1:N-1)/N; |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
232 %! sx = single (cos (m*x)); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
233 %! sy = single (sin (n*y)); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
234 %! s = kron (sx', sy); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
235 %! S = fft2 (s); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
236 %! answer = kron (fft (sx)', fft (sy)); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
237 %! assert (S, answer, 4*M*N*eps ("single")); |
7814
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7789
diff
changeset
|
238 |
22737
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
239 ## Author: David Billinghurst (David.Billinghurst@riotinto.com.au) |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
240 ## Comalco Research and Technology |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
241 ## 02 May 2000 |
25586 | 242 %!testif HAVE_FFTW |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
243 %! M = 12; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
244 %! N = 7; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
245 %! |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
246 %! m = 3; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
247 %! n = 2; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
248 %! |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
249 %! x = single (2*pi*(0:1:M-1)/M); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
250 %! y = single (2*pi*(0:1:N-1)/N); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
251 %! |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
252 %! sx = cos (m*x); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
253 %! sy = cos (n*y); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
254 %! |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
255 %! S = kron (fft (sx)', fft (sy)); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
256 %! answer = kron (sx', sy); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
257 %! s = ifft2 (S); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
258 %! |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
259 %! assert (s, answer, 30*eps ("single")); |
7814
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7789
diff
changeset
|
260 */ |