octave-lyh: src/mappers.cc annotate

annotate src/mappers.cc @ 9428:b317debeb828

data.cc (Fones, Fzeros, Ftrue, Ffalse): update docstring

author	John W. Eaton <jwe@octave.org>
date	Thu, 09 Jul 2009 15:41:27 -0400
parents	f2bf62f62286
children	09da0bd91412

rev	line source
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1 /*
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2
7017 a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
8920 eb63fbe60fab update copyright notices John W. Eaton <jwe@octave.org> parents: 8611 diff changeset	4 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 John W. Eaton
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	5
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	6 This file is part of Octave.
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	7
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	8 Octave is free software; you can redistribute it and/or modify it
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	9 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: 6969 diff changeset	10 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6969 diff changeset	11 option) any later version.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	12
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	13 Octave is distributed in the hope that it will be useful, but WITHOUT
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	16 for more details.
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	17
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	18 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: 6969 diff changeset	19 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6969 diff changeset	20 <http://www.gnu.org/licenses/>.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	21
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	22 */
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	23
240 a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe] jwe parents: 164 diff changeset	24 #ifdef HAVE_CONFIG_H
1192 b6360f2d4fa6 [project @ 1995-03-30 21:38:35 by jwe] jwe parents: 1173 diff changeset	25 #include <config.h>
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	26 #endif
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	27
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	28 #include <cctype>
3010 1aeb8869e464 [project @ 1997-06-01 19:24:02 by jwe] jwe parents: 2970 diff changeset	29 #include <cfloat>
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	30
4524 fd95dc5e6f28 [project @ 2003-10-02 03:14:48 by jwe] jwe parents: 4268 diff changeset	31 #include "lo-ieee.h"
3156 a494f93e60ff [project @ 1998-02-20 07:47:48 by jwe] jwe parents: 3010 diff changeset	32 #include "lo-specfun.h"
2889 8aa189b811d0 [project @ 1997-04-28 01:35:18 by jwe] jwe parents: 2847 diff changeset	33 #include "lo-mappers.h"
8aa189b811d0 [project @ 1997-04-28 01:35:18 by jwe] jwe parents: 2847 diff changeset	34
1352 19c10b8657d5 [project @ 1995-09-05 08:11:57 by jwe] jwe parents: 1343 diff changeset	35 #include "defun.h"
19c10b8657d5 [project @ 1995-09-05 08:11:57 by jwe] jwe parents: 1343 diff changeset	36 #include "error.h"
2955 dfffbf305468 [project @ 1997-05-09 15:15:18 by jwe] jwe parents: 2909 diff changeset	37 #include "variables.h"
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	38
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	39 DEFUN (abs, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	40 "-- texinfo --\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	41 @deftypefn {Mapping Function} {} abs (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	42 Compute the magnitude of @var{z}, defined as\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	43 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	44 $\|z\| = \\sqrt{x^2 + y^2}$.\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	45 @end tex\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	46 @ifnottex\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	47 \|@var{z}\| = @code{sqrt (x^2 + y^2)}.\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	48 @end ifnottex\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	49 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	50 For example,\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	51 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	52 @example\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	53 @group\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	54 abs (3 + 4i)\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	55 @result{} 5\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	56 @end group\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	57 @end example\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	58 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	59 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	60 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	61 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	62 retval = args(0).abs ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	63 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	64 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	65
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	66 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	67 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	68
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	69 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	70
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	71 %!assert(abs (1), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	72 %!assert(abs (-3.5), 3.5);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	73 %!assert(abs (3+4i), 5);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	74 %!assert(abs (3-4i), 5);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	75 %!assert(abs ([1.1, 3i; 3+4i, -3-4i]), [1.1, 3; 5, 5]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	76
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	77 %!assert(abs (single(1)), single(1));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	78 %!assert(abs (single(-3.5)), single(3.5));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	79 %!assert(abs (single(3+4i)), single(5));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	80 %!assert(abs (single(3-4i)), single(5));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	81 %!assert(abs (single([1.1, 3i; 3+4i, -3-4i])), single([1.1, 3; 5, 5]));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	82
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	83 %!error abs ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	84 %!error abs (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	85
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	86 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	87
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	88 DEFUN (acos, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	89 "-- texinfo --\n\
3428 5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe] jwe parents: 3411 diff changeset	90 @deftypefn {Mapping Function} {} acos (@var{x})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	91 Compute the inverse cosine in radians for each element of @var{x}.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	92 @seealso{cos, acosd}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	93 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	94 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	95 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	96 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	97 retval = args(0).acos ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	98 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	99 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	100
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	101 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	102 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	103
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	104 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	105
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	106 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	107 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	108 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	109 %! v = [0, pi/6, pi/4, pi/3, pi/2, 2pi/3, 3pi/4, 5*pi/6, pi];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	110 %! x = [1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	111 %! assert(acos (x), v, sqrt(eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	112
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	113 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	114 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	115 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	116 %! v = single ([0, pi/6, pi/4, pi/3, pi/2, 2pi/3, 3pi/4, 5*pi/6, pi]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	117 %! x = single ([1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	118 %! assert(acos (x), v, sqrt(eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	119
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	120 %!error acos ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	121 %!error acos (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	122
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	123 */
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	124
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	125 DEFUN (acosh, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	126 "-- texinfo --\n\
3428 5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe] jwe parents: 3411 diff changeset	127 @deftypefn {Mapping Function} {} acosh (@var{x})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	128 Compute the inverse hyperbolic cosine for each element of @var{x}.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	129 @seealso{cosh}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	130 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	131 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	132 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	133 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	134 retval = args(0).acosh ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	135 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	136 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	137
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	138 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	139 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	140
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	141 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	142
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	143 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	144 %! v = [0, pi/2i, pii, pi/2*i];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	145 %! x = [1, 0, -1, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	146 %! assert(acosh (x), v, sqrt(eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	147
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	148 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	149 %! v = single([0, pi/2i, pii, pi/2*i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	150 %! x = single([1, 0, -1, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	151 %! assert(acosh (x), v, sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	152
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	153 %!error acosh ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	154 %!error acosh (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	155
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	156 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	157
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	158 DEFUN (angle, args, ,
3458 d25bc039237b [project @ 2000-01-19 09:36:14 by jwe] jwe parents: 3446 diff changeset	159 "-- texinfo --\n\
d25bc039237b [project @ 2000-01-19 09:36:14 by jwe] jwe parents: 3446 diff changeset	160 @deftypefn {Mapping Function} {} angle (@var{z})\n\
d25bc039237b [project @ 2000-01-19 09:36:14 by jwe] jwe parents: 3446 diff changeset	161 See arg.\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	162 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	163 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	164 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	165 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	166 retval = args(0).arg ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	167 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	168 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	169
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	170 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	171 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	172
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	173 DEFUN (arg, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	174 "-- texinfo --\n\
3446 5ee5afb3981a [project @ 2000-01-17 09:42:43 by jwe] jwe parents: 3428 diff changeset	175 @deftypefn {Mapping Function} {} arg (@var{z})\n\
3458 d25bc039237b [project @ 2000-01-19 09:36:14 by jwe] jwe parents: 3446 diff changeset	176 @deftypefnx {Mapping Function} {} angle (@var{z})\n\
9154 761fc0d3d980 Update section 17.2 (Complex Arithmetic) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9153 diff changeset	177 Compute the argument of @var{z}, defined as,\n\
761fc0d3d980 Update section 17.2 (Complex Arithmetic) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9153 diff changeset	178 @tex\n\
761fc0d3d980 Update section 17.2 (Complex Arithmetic) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9153 diff changeset	179 $\\theta = atan2 (y, x),$\n\
761fc0d3d980 Update section 17.2 (Complex Arithmetic) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9153 diff changeset	180 @end tex\n\
761fc0d3d980 Update section 17.2 (Complex Arithmetic) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9153 diff changeset	181 @ifnottex\n\
761fc0d3d980 Update section 17.2 (Complex Arithmetic) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9153 diff changeset	182 @var{theta} = @code{atan2 (@var{y}, @var{x})},\n\
761fc0d3d980 Update section 17.2 (Complex Arithmetic) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9153 diff changeset	183 @end ifnottex\n\
761fc0d3d980 Update section 17.2 (Complex Arithmetic) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9153 diff changeset	184 in radians.\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	185 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	186 For example,\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	187 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	188 @example\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	189 @group\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	190 arg (3 + 4i)\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	191 @result{} 0.92730\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	192 @end group\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	193 @end example\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	194 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	195 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	196 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	197 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	198 retval = args(0).arg ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	199 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	200 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	201
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	202 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	203 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	204
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	205 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	206
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	207 %!assert(arg (1), 0);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	208 %!assert(arg (i), pi/2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	209 %!assert(arg (-1), pi);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	210 %!assert(arg (-i), -pi/2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	211 %!assert(arg ([1, i; -1, -i]), [0, pi/2; pi, -pi/2]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	212
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	213 %!assert(arg (single(1)), single(0));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	214 %!assert(arg (single(i)), single(pi/2));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	215 %!assert(arg (single(-1)), single(pi));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	216 %!assert(arg (single(-i)), single(-pi/2));
8067 c476c2214a90 Adjust tolerance to single precision test. Ben Abbott <bpabbott@mac.com> parents: 8047 diff changeset	217 %!assert(arg (single([1, i; -1, -i])), single([0, pi/2; pi, -pi/2]), 2e1*eps('single'));
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	218
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	219 %!error arg ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	220 %!error arg (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	221
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	222 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	223
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	224 DEFUN (asin, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	225 "-- texinfo --\n\
3428 5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe] jwe parents: 3411 diff changeset	226 @deftypefn {Mapping Function} {} asin (@var{x})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	227 Compute the inverse sine in radians for each element of @var{x}.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	228 @seealso{sin, asind}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	229 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	230 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	231 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	232 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	233 retval = args(0).asin ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	234 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	235 print_usage ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	236
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	237 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	238 }
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	239
7385 8b7b4f58199f [project @ 2008-01-15 20:49:09 by jwe] jwe parents: 7017 diff changeset	240 /*
8b7b4f58199f [project @ 2008-01-15 20:49:09 by jwe] jwe parents: 7017 diff changeset	241 %!test
8b7b4f58199f [project @ 2008-01-15 20:49:09 by jwe] jwe parents: 7017 diff changeset	242 %! rt2 = sqrt (2);
8b7b4f58199f [project @ 2008-01-15 20:49:09 by jwe] jwe parents: 7017 diff changeset	243 %! rt3 = sqrt (3);
8b7b4f58199f [project @ 2008-01-15 20:49:09 by jwe] jwe parents: 7017 diff changeset	244 %! v = [0, pi/6, pi/4, pi/3, pi/2, pi/3, pi/4, pi/6, 0];
8b7b4f58199f [project @ 2008-01-15 20:49:09 by jwe] jwe parents: 7017 diff changeset	245 %! x = [0, 1/2, rt2/2, rt3/2, 1, rt3/2, rt2/2, 1/2, 0];
8b7b4f58199f [project @ 2008-01-15 20:49:09 by jwe] jwe parents: 7017 diff changeset	246 %! assert(all (abs (asin (x) - v) < sqrt (eps)));
8b7b4f58199f [project @ 2008-01-15 20:49:09 by jwe] jwe parents: 7017 diff changeset	247 %!error asin ();
8b7b4f58199f [project @ 2008-01-15 20:49:09 by jwe] jwe parents: 7017 diff changeset	248 %!error asin (1, 2);
8b7b4f58199f [project @ 2008-01-15 20:49:09 by jwe] jwe parents: 7017 diff changeset	249 */
8b7b4f58199f [project @ 2008-01-15 20:49:09 by jwe] jwe parents: 7017 diff changeset	250
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	251 DEFUN (asinh, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	252 "-- texinfo --\n\
3428 5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe] jwe parents: 3411 diff changeset	253 @deftypefn {Mapping Function} {} asinh (@var{x})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	254 Compute the inverse hyperbolic sine for each element of @var{x}.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	255 @seealso{sinh}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	256 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	257 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	258 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	259 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	260 retval = args(0).asinh ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	261 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	262 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	263
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	264 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	265 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	266
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	267 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	268
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	269 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	270 %! v = [0, pi/2i, 0, -pi/2i];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	271 %! x = [0, i, 0, -i];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	272 %! assert(asinh (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	273
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	274 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	275 %! v = single([0, pi/2i, 0, -pi/2i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	276 %! x = single([0, i, 0, -i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	277 %! assert(asinh (x), v, sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	278
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	279 %!error asinh ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	280 %!error asinh (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	281
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	282 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	283
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	284 DEFUN (atan, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	285 "-- texinfo --\n\
3428 5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe] jwe parents: 3411 diff changeset	286 @deftypefn {Mapping Function} {} atan (@var{x})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	287 Compute the inverse tangent in radians for each element of @var{x}.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	288 @seealso{tan, atand}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	289 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	290 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	291 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	292 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	293 retval = args(0).atan ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	294 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	295 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	296
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	297 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	298 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	299
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	300 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	301
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	302 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	303 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	304 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	305 %! v = [0, pi/6, pi/4, pi/3, -pi/3, -pi/4, -pi/6, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	306 %! x = [0, rt3/3, 1, rt3, -rt3, -1, -rt3/3, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	307 %! assert(atan (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	308
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	309 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	310 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	311 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	312 %! v = single([0, pi/6, pi/4, pi/3, -pi/3, -pi/4, -pi/6, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	313 %! x = single([0, rt3/3, 1, rt3, -rt3, -1, -rt3/3, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	314 %! assert(atan (x), v, sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	315
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	316 %!error atan ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	317 %!error atan (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	318
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	319 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	320
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	321 DEFUN (atanh, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	322 "-- texinfo --\n\
3428 5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe] jwe parents: 3411 diff changeset	323 @deftypefn {Mapping Function} {} atanh (@var{x})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	324 Compute the inverse hyperbolic tangent for each element of @var{x}.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	325 @seealso{tanh}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	326 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	327 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	328 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	329 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	330 retval = args(0).atanh ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	331 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	332 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	333
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	334 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	335 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	336
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	337 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	338
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	339 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	340 %! v = [0, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	341 %! x = [0, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	342 %! assert(atanh (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	343
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	344 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	345 %! v = single([0, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	346 %! x = single([0, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	347 %! assert(atanh (x), v, sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	348
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	349 %!error atanh ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	350 %!error atanh (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	351
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	352 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	353
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	354 DEFUN (ceil, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	355 "-- texinfo --\n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3369 diff changeset	356 @deftypefn {Mapping Function} {} ceil (@var{x})\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	357 Return the smallest integer not less than @var{x}. This is equivalent to\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	358 rounding towards positive infinity. If @var{x} is\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	359 complex, return @code{ceil (real (@var{x})) + ceil (imag (@var{x})) * I}.\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	360 @example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	361 @group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	362 ceil ([-2.7, 2.7])\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	363 @result{} -2 3\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	364 @end group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	365 @end example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	366 @seealso{floor, round, fix}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	367 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	368 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	369 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	370 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	371 retval = args(0).ceil ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	372 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	373 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	374
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	375 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	376 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	377
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	378 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	379
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	380 %% double precision
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	381 %!assert(ceil ([2, 1.1, -1.1, -1]), [2, 2, -1, -1]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	382
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	383 %% compelx double precison
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	384 %!assert(ceil ([2+2i, 1.1+1.1i, -1.1-1.1i, -1-i]), [2+2i, 2+2i, -1-i, -1-i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	385
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	386 %% single precision
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	387 %!assert(ceil (single([2, 1.1, -1.1, -1])), single([2, 2, -1, -1]));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	388
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	389 %% compelx single preci
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	390 %!assert(ceil (single ([2+2i, 1.1+1.1i, -1.1-1.1i, -1-i])), single([2+2i, 2+2i, -1-i, -1-i]));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	391
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	392 %!error ceil ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	393 %!error ceil (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	394
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	395 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	396
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	397 DEFUN (conj, args, ,
3381 69b167451491 [project @ 1999-12-15 20:48:10 by jwe] jwe parents: 3373 diff changeset	398 "-- texinfo --\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	399 @deftypefn {Mapping Function} {} conj (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	400 Return the complex conjugate of @var{z}, defined as\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	401 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	402 $\\bar{z} = x - iy$.\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	403 @end tex\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	404 @ifnottex\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	405 @code{conj (@var{z})} = @var{x} - @var{i}@var{y}.\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	406 @end ifnottex\n\
5642 2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe] jwe parents: 5518 diff changeset	407 @seealso{real, imag}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	408 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	409 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	410 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	411 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	412 retval = args(0).conj ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	413 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	414 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	415
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	416 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	417 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	418
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	419 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	420
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	421 %!assert(conj (1), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	422 %!assert(conj (i), -i)
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	423 %!assert(conj (1+i), 1-i)
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	424 %!assert(conj (1-i), 1+i)
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	425 %!assert(conj ([-1, -i; -1+i, -1-i]), [-1, i; -1-i, -1+i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	426
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	427 %!assert(conj (single(1)), single(1));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	428 %!assert(conj (single(i)), single(-i))
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	429 %!assert(conj (single(1+i)), single(1-i))
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	430 %!assert(conj (single(1-i)), single(1+i))
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	431 %!assert(conj (single([-1, -i; -1+i, -1-i])), single([-1, i; -1-i, -1+i]));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	432
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	433 %!error conj ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	434 %!error conj (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	435
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	436 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	437
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	438 DEFUN (cos, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	439 "-- texinfo --\n\
3428 5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe] jwe parents: 3411 diff changeset	440 @deftypefn {Mapping Function} {} cos (@var{x})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	441 Compute the cosine for each element of @var{x} in radians.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	442 @seealso{acos, cosd, cosh}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	443 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	444 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	445 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	446 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	447 retval = args(0).cos ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	448 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	449 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	450
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	451 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	452 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	453
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	454 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	455
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	456 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	457 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	458 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	459 %! x = [0, pi/6, pi/4, pi/3, pi/2, 2pi/3, 3pi/4, 5*pi/6, pi];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	460 %! v = [1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	461 %! assert(cos (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	462
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	463 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	464 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	465 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	466 %! x = single([0, pi/6, pi/4, pi/3, pi/2, 2pi/3, 3pi/4, 5*pi/6, pi]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	467 %! v = single([1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	468 %! assert(cos (x), v, sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	469
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	470 %!error cos ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	471 %!error cos (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	472
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	473 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	474
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	475 DEFUN (cosh, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	476 "-- texinfo --\n\
3428 5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe] jwe parents: 3411 diff changeset	477 @deftypefn {Mapping Function} {} cosh (@var{x})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	478 Compute the hyperbolic cosine for each element of @var{x}.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	479 @seealso{acosh, sinh, tanh}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	480 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	481 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	482 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	483 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	484 retval = args(0).cosh ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	485 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	486 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	487
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	488 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	489 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	490
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	491 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	492
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	493 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	494 %! x = [0, pi/2i, pii, 3pi/2i];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	495 %! v = [1, 0, -1, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	496 %! assert(cosh (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	497
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	498 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	499 %! x = single([0, pi/2i, pii, 3pi/2i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	500 %! v = single([1, 0, -1, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	501 %! assert(cosh (x), v, sqrt (eps ('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	502
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	503 %!error cosh ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	504 %!error cosh (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	505
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	506 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	507
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	508 DEFUN (erf, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	509 "-- texinfo --\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	510 @deftypefn {Mapping Function} {} erf (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	511 Computes the error function,\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	512 @iftex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	513 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	514 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	515 {\\rm erf} (z) = {2 \\over \\sqrt{\\pi}}\\int_0^z e^{-t^2} dt\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	516 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	517 @end tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	518 @end iftex\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	519 @ifnottex\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	520 \n\
9153 5247e89688e1 Eliminate most overfull errors when running texi2pdf for generating pdf documentation Rik <rdrider0-list@yahoo.com> parents: 9141 diff changeset	521 @example\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	522 @group\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	523 z\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	524 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	525 erf (z) = (2/sqrt (pi)) \| e^(-t^2) dt\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	526 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	527 t=0\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	528 @end group\n\
9153 5247e89688e1 Eliminate most overfull errors when running texi2pdf for generating pdf documentation Rik <rdrider0-list@yahoo.com> parents: 9141 diff changeset	529 @end example\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	530 @end ifnottex\n\
5642 2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe] jwe parents: 5518 diff changeset	531 @seealso{erfc, erfinv}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	532 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	533 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	534 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	535 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	536 retval = args(0).erf ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	537 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	538 print_usage ();
624 1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe] jwe parents: 529 diff changeset	539
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	540 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	541 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	542
7667 fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	543 /*
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	544
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	545 %!test
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	546 %! a = -1isqrt(-1/(6.41876.4187));
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	547 %! assert (erf(a), erf(real(a)));
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	548
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	549 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	550 %! x=[0,.5,1];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	551 %! v=[0, .520499877813047, .842700792949715];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	552 %! assert(all(abs(erf(x)-v)<1.e-10) && all(abs(erf(-x)+v)<1.e-10) && all(abs(erfc(x)+v-1)<1.e-10) && all(abs(erfinv(v)-x)<1.e-10));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	553
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	554 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	555 %! a = -1isqrt(single (-1/(6.41876.4187)));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	556 %! assert (erf(a), erf(real(a)));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	557
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	558 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	559 %! x=single ([0,.5,1]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	560 %! v=single ([0, .520499877813047, .842700792949715]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	561 %! assert(all(abs(erf(x)-v)<1.e-6) && all(abs(erf(-x)+v)<1.e-6) && all(abs(erfc(x)+v-1)<1.e-6) && all(abs(erfinv(v)-x)<1.e-6));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	562
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	563 %% test/octave.test/arith/erf-2.m
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	564 %!error erf();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	565
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	566 %% test/octave.test/arith/erf-3.m
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	567 %!error erf(1,2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	568
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	569
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	570
7667 fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	571 */
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	572
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	573 DEFUN (erfc, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	574 "-- texinfo --\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	575 @deftypefn {Mapping Function} {} erfc (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	576 Computes the complementary error function,\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	577 @iftex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	578 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	579 $1 - {\\rm erf} (z)$.\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	580 @end tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	581 @end iftex\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	582 @ifnottex\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	583 @code{1 - erf (@var{z})}.\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	584 @end ifnottex\n\
5642 2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe] jwe parents: 5518 diff changeset	585 @seealso{erf, erfinv}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	586 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	587 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	588 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	589 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	590 retval = args(0).erfc ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	591 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	592 print_usage ();
624 1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe] jwe parents: 529 diff changeset	593
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	594 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	595 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	596
7667 fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	597 /*
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	598
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	599 %!test
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	600 %! a = -1isqrt(-1/(6.41876.4187));
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	601 %! assert (erfc(a), erfc(real(a)));
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	602
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	603 */
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	604
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	605 DEFUN (exp, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	606 "-- texinfo --\n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3369 diff changeset	607 @deftypefn {Mapping Function} {} exp (@var{x})\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	608 Compute\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	609 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	610 $e^{x}$\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	611 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	612 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	613 @code{e^x}\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	614 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	615 for each element of @var{x}. To compute the matrix\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	616 exponential, see @ref{Linear Algebra}.\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	617 @seealso{log}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	618 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	619 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	620 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	621 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	622 retval = args(0).exp ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	623 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	624 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	625
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	626 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	627 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	628
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	629 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	630
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	631 %!assert(exp ([0, 1, -1, -1000]), [1, e, 1/e, 0], sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	632 %!assert(exp (1+i), e * (cos (1) + sin (1) * i), sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	633 %!assert(exp (single([0, 1, -1, -1000])), single([1, e, 1/e, 0]), sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	634 %!assert(exp (single(1+i)), single (e * (cos (1) + sin (1) * i)), sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	635
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	636 %!error exp ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	637 %!error exp (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	638
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	639 %!assert(exp (Inf) == Inf && exp (-Inf) == 0 && isnan (exp (NaN)));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	640 %!assert(exp (Inf ('single')) == Inf('single') && exp (-Inf('single')) == 0 && isnan (exp (NaN('single'))));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	641
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	642 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	643
7638 2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	644 DEFUN (expm1, args, ,
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	645 "-- texinfo --\n\
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	646 @deftypefn {Mapping Function} {} expm1 (@var{x})\n\
9167 1231b1762a9a Simplify TeXinfo and eliminate use of @iftex in arith.txi Rik <rdrider0-list@yahoo.com> parents: 9165 diff changeset	647 Compute\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	648 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	649 $ e^{x} - 1 $\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	650 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	651 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	652 @code{exp (@var{x}) - 1}\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	653 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	654 accurately in the neighborhood of zero.\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	655 @seealso{exp}\n\
7638 2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	656 @end deftypefn")
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	657 {
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	658 octave_value retval;
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	659 if (args.length () == 1)
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	660 retval = args(0).expm1 ();
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	661 else
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	662 print_usage ();
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	663
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	664 return retval;
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	665 }
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	666
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	667 DEFUN (finite, args, ,
3369 f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	668 "-- texinfo --\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	669 @deftypefn {Mapping Function} {} finite (@var{x})\n\
3600 c11d138d654a [project @ 2000-02-24 03:55:32 by jwe] jwe parents: 3586 diff changeset	670 Return 1 for elements of @var{x} that are finite values and zero\n\
9041 853f96e8008f Cleanup documentation file matrix.texi Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	671 otherwise. For example,\n\
3369 f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	672 \n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	673 @example\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	674 @group\n\
5016 bdbee5282954 [project @ 2004-09-22 02:50:35 by jwe] jwe parents: 4968 diff changeset	675 finite ([13, Inf, NA, NaN])\n\
bdbee5282954 [project @ 2004-09-22 02:50:35 by jwe] jwe parents: 4968 diff changeset	676 @result{} [ 1, 0, 0, 0 ]\n\
3369 f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	677 @end group\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	678 @end example\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	679 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	680 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	681 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	682 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	683 retval = args(0).finite ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	684 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	685 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	686
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	687 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	688 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	689
7814 87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	690 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	691
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	692 %!assert(!(finite (Inf)));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	693 %!assert(!(finite (NaN)));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	694 %!assert(finite (rand(1,10)));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	695
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	696 %!assert(!(finite (single(Inf))));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	697 %!assert(!(finite (single(NaN))));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	698 %!assert(finite (single(rand(1,10))));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	699
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	700 */
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	701
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	702 DEFUN (fix, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	703 "-- texinfo --\n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3369 diff changeset	704 @deftypefn {Mapping Function} {} fix (@var{x})\n\
9165 8c71a86c4bf4 Update section 17.5 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9155 diff changeset	705 Truncate fractional portion of @var{x} and return the integer portion. This\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	706 is equivalent to rounding towards zero. If @var{x} is complex, return\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	707 @code{fix (real (@var{x})) + fix (imag (@var{x})) * I}.\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	708 @example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	709 @group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	710 fix ([-2.7, 2.7])\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	711 @result{} -2 2\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	712 @end group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	713 @end example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	714 @seealso{ceil, floor, round}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	715 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	716 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	717 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	718 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	719 retval = args(0).fix ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	720 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	721 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	722
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	723 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	724 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	725
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	726 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	727
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	728 %!assert(fix ([1.1, 1, -1.1, -1]), [1, 1, -1, -1]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	729 %!assert(fix ([1.1+1.1i, 1+i, -1.1-1.1i, -1-i]), [1+i, 1+i, -1-i, -1-i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	730 %!assert(fix (single([1.1, 1, -1.1, -1])), single([1, 1, -1, -1]));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	731 %!assert(fix (single([1.1+1.1i, 1+i, -1.1-1.1i, -1-i])), single([1+i, 1+i, -1-i, -1-i]));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	732
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	733 %!error fix ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	734 %!error fix (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	735
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	736 */
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	737
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	738 DEFUN (floor, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	739 "-- texinfo --\n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3369 diff changeset	740 @deftypefn {Mapping Function} {} floor (@var{x})\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	741 Return the largest integer not greater than @var{x}. This is equivalent to\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	742 rounding towards negative infinity. If @var{x} is\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	743 complex, return @code{floor (real (@var{x})) + floor (imag (@var{x})) * I}.\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	744 @example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	745 @group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	746 floor ([-2.7, 2.7])\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	747 @result{} -3 2\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	748 @end group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	749 @end example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	750 @seealso{ceil, round, fix}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	751 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	752 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	753 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	754 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	755 retval = args(0).floor ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	756 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	757 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	758
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	759 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	760 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	761
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	762 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	763
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	764 %!assert(floor ([2, 1.1, -1.1, -1]), [2, 1, -2, -1]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	765 %!assert(floor ([2+2i, 1.1+1.1i, -1.1-1.1i, -1-i]), [2+2i, 1+i, -2-2i, -1-i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	766 %!assert(floor (single ([2, 1.1, -1.1, -1])), single ([2, 1, -2, -1]));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	767 %!assert(floor (single([2+2i, 1.1+1.1i, -1.1-1.1i, -1-i])), single([2+2i, 1+i, -2-2i, -1-i]));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	768
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	769 %!error floor ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	770 %!error floor (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	771
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	772 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	773
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	774 DEFUN (gamma, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	775 "-- texinfo --\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	776 @deftypefn {Mapping Function} {} gamma (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	777 Computes the Gamma function,\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	778 @iftex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	779 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	780 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	781 \\Gamma (z) = \\int_0^\\infty t^{z-1} e^{-t} dt.\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	782 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	783 @end tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	784 @end iftex\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	785 @ifnottex\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	786 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	787 @example\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 9041 diff changeset	788 @group\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	789 infinity\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	790 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	791 gamma (z) = \| t^(z-1) exp (-t) dt.\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	792 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	793 t=0\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 9041 diff changeset	794 @end group\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	795 @end example\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	796 @end ifnottex\n\
8286 6f2d95255911 fix @seealso references to point to existing anchors Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8084 diff changeset	797 @seealso{gammainc, lgamma}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	798 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	799 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	800 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	801 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	802 retval = args(0).gamma ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	803 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	804 print_usage ();
624 1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe] jwe parents: 529 diff changeset	805
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	806 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	807 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	808
7667 fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	809 /*
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	810
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	811 %!test
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	812 %! a = -1isqrt(-1/(6.41876.4187));
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	813 %! assert (gamma(a), gamma(real(a)));
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	814
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	815 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	816 %! x = [.5, 1, 1.5, 2, 3, 4, 5];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	817 %! v = [sqrt(pi), 1, .5*sqrt(pi), 1, 2, 6, 24];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	818 %! assert(gamma(x), v, sqrt(eps))
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	819
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	820 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	821 %! a = single(-1isqrt(-1/(6.41876.4187)));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	822 %! assert (gamma(a), gamma(real(a)));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	823
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	824 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	825 %! x = single([.5, 1, 1.5, 2, 3, 4, 5]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	826 %! v = single([sqrt(pi), 1, .5*sqrt(pi), 1, 2, 6, 24]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	827 %! assert(gamma(x), v, sqrt(eps('single')))
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	828
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	829 %!error gamma();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	830 %!error gamma(1,2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	831
7667 fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	832 */
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	833
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	834 DEFUN (imag, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	835 "-- texinfo --\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	836 @deftypefn {Mapping Function} {} imag (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	837 Return the imaginary part of @var{z} as a real number.\n\
5642 2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe] jwe parents: 5518 diff changeset	838 @seealso{real, conj}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	839 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	840 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	841 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	842 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	843 retval = args(0).imag ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	844 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	845 print_usage ();
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	846
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	847 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	848 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	849
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	850 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	851
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	852 %!assert(imag (1), 0);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	853 %!assert(imag (i), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	854 %!assert(imag (1+i), 1);
8459 d17874a6f161 improve indexing of diagonal & permutation matrices Jaroslav Hajek <highegg@gmail.com> parents: 8442 diff changeset	855 %!assert(imag ([i, 1; 1, i]), full (eye (2)));
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	856
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	857 %!assert(imag (single(1)), single(0));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	858 %!assert(imag (single(i)), single(1));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	859 %!assert(imag (single(1+i)), single(1));
8459 d17874a6f161 improve indexing of diagonal & permutation matrices Jaroslav Hajek <highegg@gmail.com> parents: 8442 diff changeset	860 %!assert(imag (single([i, 1; 1, i])), full (eye (2,'single')));
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	861
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	862 %!error imag ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	863 %!error imag (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	864
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	865 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	866
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	867 DEFUNX ("isalnum", Fisalnum, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	868 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	869 @deftypefn {Mapping Function} {} isalnum (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	870 Return 1 for characters that are letters or digits (@code{isalpha\n\
4165 e05de825dbd6 [project @ 2002-11-11 23:25:48 by jwe] jwe parents: 4100 diff changeset	871 (@var{s})} or @code{isdigit (@var{s})} is true).\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	872 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	873 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	874 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	875 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	876 retval = args(0).xisalnum ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	877 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	878 print_usage ();
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	879
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	880 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	881 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	882
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	883 DEFUNX ("isalpha", Fisalpha, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	884 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	885 @deftypefn {Mapping Function} {} isalpha (@var{s})\n\
4168 20e641883610 [project @ 2002-11-12 02:56:54 by jwe] jwe parents: 4165 diff changeset	886 @deftypefnx {Mapping Function} {} isletter (@var{s})\n\
4165 e05de825dbd6 [project @ 2002-11-11 23:25:48 by jwe] jwe parents: 4100 diff changeset	887 Return true for characters that are letters (@code{isupper (@var{s})}\n\
e05de825dbd6 [project @ 2002-11-11 23:25:48 by jwe] jwe parents: 4100 diff changeset	888 or @code{islower (@var{s})} is true).\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	889 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	890 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	891 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	892 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	893 retval = args(0).xisalpha ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	894 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	895 print_usage ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	896
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	897 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	898 }
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	899
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	900 DEFUNX ("isascii", Fisascii, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	901 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	902 @deftypefn {Mapping Function} {} isascii (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	903 Return 1 for characters that are ASCII (in the range 0 to 127 decimal).\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	904 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	905 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	906 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	907 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	908 retval = args(0).xisascii ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	909 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	910 print_usage ();
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	911
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	912 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	913 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	914
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	915 DEFUNX ("iscntrl", Fiscntrl, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	916 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	917 @deftypefn {Mapping Function} {} iscntrl (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	918 Return 1 for control characters.\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	919 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	920 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	921 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	922 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	923 retval = args(0).xiscntrl ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	924 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	925 print_usage ();
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	926
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	927 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	928 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	929
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	930 DEFUNX ("isdigit", Fisdigit, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	931 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	932 @deftypefn {Mapping Function} {} isdigit (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	933 Return 1 for characters that are decimal digits.\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	934 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	935 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	936 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	937 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	938 retval = args(0).xisdigit ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	939 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	940 print_usage ();
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	941
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	942 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	943 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	944
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	945 DEFUN (isinf, args, ,
3369 f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	946 "-- texinfo --\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	947 @deftypefn {Mapping Function} {} isinf (@var{x})\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	948 Return 1 for elements of @var{x} that are infinite and zero\n\
9041 853f96e8008f Cleanup documentation file matrix.texi Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	949 otherwise. For example,\n\
3369 f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	950 \n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	951 @example\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	952 @group\n\
4025 cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	953 isinf ([13, Inf, NA, NaN])\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	954 @result{} [ 0, 1, 0, 0 ]\n\
3369 f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	955 @end group\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	956 @end example\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	957 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	958 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	959 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	960 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	961 retval = args(0).isinf ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	962 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	963 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	964
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	965 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	966 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	967
7814 87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	968 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	969
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	970 %!assert(isinf (Inf));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	971 %!assert(!isinf (NaN));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	972 %!assert(!(isinf (NA)));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	973 %!assert(isinf (rand(1,10)), false(1,10));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	974 %!assert(isinf([NaN -Inf -1 0 1 Inf NA]), [false, true, false, false, false, true, false]);
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	975
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	976 %!assert(isinf (single(Inf)));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	977 %!assert(!(isinf (single(NaN))));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	978 %!assert(!(isinf (single(NA))));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	979 %!assert(isinf (single(rand(1,10))), false(1,10));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	980 %!assert(isinf(single([NaN -Inf -1 0 1 Inf NA])), [false, true, false, false, false, true, false]);
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	981
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	982 */
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	983
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	984 DEFUNX ("isgraph", Fisgraph, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	985 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	986 @deftypefn {Mapping Function} {} isgraph (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	987 Return 1 for printable characters (but not the space character).\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	988 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	989 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	990 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	991 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	992 retval = args(0).xisgraph ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	993 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	994 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	995
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	996 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	997 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	998
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	999 DEFUNX ("islower", Fislower, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1000 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1001 @deftypefn {Mapping Function} {} islower (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1002 Return 1 for characters that are lower case letters.\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1003 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1004 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1005 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1006 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1007 retval = args(0).xislower ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1008 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1009 print_usage ();
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	1010
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1011 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1012 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1013
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1014 DEFUN (isna, args, ,
4025 cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	1015 "-- texinfo --\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	1016 @deftypefn {Mapping Function} {} isna (@var{x})\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	1017 Return 1 for elements of @var{x} that are NA (missing) values and zero\n\
5389 25c8956d2204 [project @ 2005-06-15 03:45:46 by jwe] jwe parents: 5307 diff changeset	1018 otherwise. For example,\n\
4025 cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	1019 \n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	1020 @example\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	1021 @group\n\
6218 c1b66b74937d [project @ 2006-12-27 17:43:50 by jwe] jwe parents: 6206 diff changeset	1022 isna ([13, Inf, NA, NaN])\n\
4025 cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	1023 @result{} [ 0, 0, 1, 0 ]\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	1024 @end group\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	1025 @end example\n\
9308 f2bf62f62286 Update documentation for NA and isna functions Rik <rdrider0-list@yahoo.com> parents: 9209 diff changeset	1026 @seealso{isnan}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1027 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1028 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1029 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1030 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1031 retval = args(0).isna ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1032 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1033 print_usage ();
4025 cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	1034
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1035 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1036 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1037
7814 87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1038 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1039
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1040 %!assert(!(isna (Inf)));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1041 %!assert(!isna (NaN));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1042 %!assert(isna (NA));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1043 %!assert(isna (rand(1,10)), false(1,10));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1044 %!assert(isna([NaN -Inf -1 0 1 Inf NA]), [false, false, false, false, false, false, true]);
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1045
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1046 %!assert(!(isna (single(Inf))));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1047 %!assert(!isna (single(NaN)));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1048 %!assert(isna (single(NA)));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1049 %!assert(isna (single(rand(1,10))), false(1,10));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1050 %!assert(isna(single([NaN -Inf -1 0 1 Inf NA])), [false, false, false, false, false, false, true]);
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1051
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1052 */
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1053
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1054 DEFUN (isnan, args, ,
3369 f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	1055 "-- texinfo --\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	1056 @deftypefn {Mapping Function} {} isnan (@var{x})\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	1057 Return 1 for elements of @var{x} that are NaN values and zero\n\
5389 25c8956d2204 [project @ 2005-06-15 03:45:46 by jwe] jwe parents: 5307 diff changeset	1058 otherwise. NA values are also considered NaN values. For example,\n\
3369 f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	1059 \n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	1060 @example\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	1061 @group\n\
4025 cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe] jwe parents: 3775 diff changeset	1062 isnan ([13, Inf, NA, NaN])\n\
5389 25c8956d2204 [project @ 2005-06-15 03:45:46 by jwe] jwe parents: 5307 diff changeset	1063 @result{} [ 0, 0, 1, 1 ]\n\
3369 f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	1064 @end group\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe] jwe parents: 3368 diff changeset	1065 @end example\n\
9308 f2bf62f62286 Update documentation for NA and isna functions Rik <rdrider0-list@yahoo.com> parents: 9209 diff changeset	1066 @seealso{isna}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1067 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1068 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1069 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1070 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1071 retval = args(0).isnan ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1072 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1073 print_usage ();
624 1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe] jwe parents: 529 diff changeset	1074
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1075 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1076 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1077
7814 87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1078 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1079
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1080 %!assert(!(isnan (Inf)));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1081 %!assert(isnan (NaN));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1082 %!assert(isnan (NA));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1083 %!assert(isnan (rand(1,10)), false(1,10));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1084 %!assert(isnan([NaN -Inf -1 0 1 Inf NA]), [true, false, false, false, false, false, true]);
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1085
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1086 %!assert(!(isnan (single(Inf))));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1087 %!assert(isnan (single(NaN)));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1088 %!assert(isnan (single(NA)));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1089 %!assert(isnan (single(rand(1,10))), false(1,10));
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1090 %!assert(isnan(single([NaN -Inf -1 0 1 Inf NA])), [true, false, false, false, false, false, true]);
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1091
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1092 */
87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7667 diff changeset	1093
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1094 DEFUNX ("isprint", Fisprint, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1095 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1096 @deftypefn {Mapping Function} {} isprint (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1097 Return 1 for printable characters (including the space character).\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1098 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1099 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1100 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1101 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1102 retval = args(0).xisprint ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1103 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1104 print_usage ();
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	1105
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1106 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1107 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1108
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1109 DEFUNX ("ispunct", Fispunct, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1110 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1111 @deftypefn {Mapping Function} {} ispunct (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1112 Return 1 for punctuation characters.\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1113 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1114 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1115 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1116 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1117 retval = args(0).xispunct ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1118 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1119 print_usage ();
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	1120
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1121 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1122 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1123
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1124 DEFUNX ("isspace", Fisspace, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1125 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1126 @deftypefn {Mapping Function} {} isspace (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1127 Return 1 for whitespace characters (space, formfeed, newline,\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1128 carriage return, tab, and vertical tab).\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1129 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1130 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1131 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1132 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1133 retval = args(0).xisspace ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1134 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1135 print_usage ();
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	1136
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1137 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1138 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1139
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1140 DEFUNX ("isupper", Fisupper, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1141 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1142 @deftypefn {Mapping Function} {} isupper (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1143 Return 1 for upper case letters.\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1144 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1145 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1146 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1147 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1148 retval = args(0).xisupper ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1149 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1150 print_usage ();
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	1151
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1152 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1153 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1154
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1155 DEFUNX ("isxdigit", Fisxdigit, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1156 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1157 @deftypefn {Mapping Function} {} isxdigit (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1158 Return 1 for characters that are hexadecimal digits.\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1159 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1160 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1161 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1162 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1163 retval = args(0).xisxdigit ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1164 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1165 print_usage ();
2089 4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe] jwe parents: 1996 diff changeset	1166
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1167 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1168 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1169
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1170 DEFUN (lgamma, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1171 "-- texinfo --\n\
5518 a9bd6c31751f [project @ 2005-10-29 04:26:38 by jwe] jwe parents: 5418 diff changeset	1172 @deftypefn {Mapping Function} {} lgamma (@var{x})\n\
a9bd6c31751f [project @ 2005-10-29 04:26:38 by jwe] jwe parents: 5418 diff changeset	1173 @deftypefnx {Mapping Function} {} gammaln (@var{x})\n\
7601 8a939b217863 Treat negative values to lgamma and beta correctly David Bateman <dbateman@free.fr> parents: 7528 diff changeset	1174 Return the natural logarithm of the gamma function of @var{x}.\n\
8286 6f2d95255911 fix @seealso references to point to existing anchors Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8084 diff changeset	1175 @seealso{gamma, gammainc}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1176 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1177 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1178 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1179 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1180 retval = args(0).lgamma ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1181 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1182 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	1183
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1184 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1185 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1186
7667 fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	1187 /*
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	1188
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	1189 %!test
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	1190 %! a = -1isqrt(-1/(6.41876.4187));
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	1191 %! assert (lgamma(a), lgamma(real(a)));
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	1192
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1193 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1194 %! x = [.5, 1, 1.5, 2, 3, 4, 5];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1195 %! v = [sqrt(pi), 1, .5*sqrt(pi), 1, 2, 6, 24];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1196 %! assert(lgamma(x), log(v), sqrt(eps))
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1197
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1198 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1199 %! a = single(-1isqrt(-1/(6.41876.4187)));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1200 %! assert (lgamma(a), lgamma(real(a)));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1201
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1202 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1203 %! x = single([.5, 1, 1.5, 2, 3, 4, 5]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1204 %! v = single([sqrt(pi), 1, .5*sqrt(pi), 1, 2, 6, 24]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1205 %! assert(lgamma(x), log(v), sqrt(eps ('single')))
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1206
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1207 %!error lgamma();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1208 %!error lgamma(1,2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1209
7667 fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	1210 */
fb3a6c53c2b2 Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function David Bateman <dbateman@free.fr> parents: 7638 diff changeset	1211
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1212 DEFUN (log, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1213 "-- texinfo --\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1214 @deftypefn {Mapping Function} {} log (@var{x})\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1215 Compute the natural logarithm,\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1216 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1217 $\\ln{(x)},$\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1218 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1219 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1220 @code{ln (@var{x})},\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1221 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1222 for each element of @var{x}. To compute the\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1223 matrix logarithm, see @ref{Linear Algebra}.\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1224 @seealso{exp, log1p, log2, log10, logspace}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1225 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1226 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1227 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1228 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1229 retval = args(0).log ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1230 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1231 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	1232
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1233 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1234 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1235
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1236 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1237
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1238 %!assert(log ([1, e, e^2]), [0, 1, 2], sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1239 %!assert(log ([-0.5, -1.5, -2.5]), log([0.5, 1.5, 2.5]) + pi*1i, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1240
8084 46aa04055325 Use eps(single) as tolerance for single precesion test. Ben Abbott <bpabbott@mac.com> parents: 8067 diff changeset	1241 %!assert(log (single([1, e, e^2])), single([0, 1, 2]), sqrt (eps('single')));
8067 c476c2214a90 Adjust tolerance to single precision test. Ben Abbott <bpabbott@mac.com> parents: 8047 diff changeset	1242 %!assert(log (single([-0.5, -1.5, -2.5])), single(log([0.5, 1.5, 2.5]) + pi1i), 4eps('single'));
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1243
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1244 %!error log ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1245 %!error log (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1246
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1247 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1248
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1249 DEFUN (log10, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1250 "-- texinfo --\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1251 @deftypefn {Mapping Function} {} log10 (@var{x})\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1252 Compute the base-10 logarithm of each element of @var{x}.\n\
5642 2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe] jwe parents: 5518 diff changeset	1253 @seealso{log, log2, logspace, exp}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1254 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1255 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1256 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1257 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1258 retval = args(0).log10 ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1259 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1260 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	1261
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1262 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1263 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1264
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1265 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1266
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1267 %!assert(log10 ([0.01, 0.1, 1, 10, 100]), [-2, -1, 0, 1, 2], sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1268 %!assert(log10 (single([0.01, 0.1, 1, 10, 100])), single([-2, -1, 0, 1, 2]), sqrt (eps ('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1269
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1270 %!error log10 ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1271 %!error log10 (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1272
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1273 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1274
7638 2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1275 DEFUN (log1p, args, ,
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1276 "-- texinfo --\n\
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1277 @deftypefn {Mapping Function} {} log1p (@var{x})\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1278 Compute\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1279 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1280 $\\ln{(1 + x)}$\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1281 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1282 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1283 @code{log (1 + @var{x})}\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1284 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1285 accurately in the neighborhood of zero.\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1286 @seealso{log, exp, expm1}\n\
7638 2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1287 @end deftypefn")
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1288 {
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1289 octave_value retval;
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1290 if (args.length () == 1)
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1291 retval = args(0).log1p ();
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1292 else
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1293 print_usage ();
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1294
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1295 return retval;
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1296 }
2df457529cfa implement expm1 and log1p functions Jaroslav Hajek <highegg@gmail.com> parents: 7636 diff changeset	1297
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1298 DEFUN (real, args, ,
3381 69b167451491 [project @ 1999-12-15 20:48:10 by jwe] jwe parents: 3373 diff changeset	1299 "-- texinfo --\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1300 @deftypefn {Mapping Function} {} real (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1301 Return the real part of @var{z}.\n\
5642 2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe] jwe parents: 5518 diff changeset	1302 @seealso{imag, conj}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1303 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1304 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1305 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1306 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1307 retval = args(0).real ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1308 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1309 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	1310
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1311 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1312 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1313
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1314 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1315
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1316 %!assert(real (1), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1317 %!assert(real (i), 0);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1318 %!assert(real (1+i), 1);
8459 d17874a6f161 improve indexing of diagonal & permutation matrices Jaroslav Hajek <highegg@gmail.com> parents: 8442 diff changeset	1319 %!assert(real ([1, i; i, 1]), full (eye (2)));
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1320
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1321 %!assert(real (single(1)), single(1));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1322 %!assert(real (single(i)), single(0));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1323 %!assert(real (single(1+i)), single(1));
8459 d17874a6f161 improve indexing of diagonal & permutation matrices Jaroslav Hajek <highegg@gmail.com> parents: 8442 diff changeset	1324 %!assert(real (single([1, i; i, 1])), full (eye (2,'single')));
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1325
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1326 %!error real ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1327 %!error real (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1328
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1329 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1330
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1331 DEFUN (round, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1332 "-- texinfo --\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1333 @deftypefn {Mapping Function} {} round (@var{x})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1334 Return the integer nearest to @var{x}. If @var{x} is complex, return\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1335 @code{round (real (@var{x})) + round (imag (@var{x})) * I}.\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1336 @example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1337 @group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1338 round ([-2.7, 2.7])\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1339 @result{} -3 3\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1340 @end group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1341 @end example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1342 @seealso{ceil, floor, fix}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1343 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1344 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1345 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1346 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1347 retval = args(0).round ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1348 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1349 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	1350
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1351 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1352 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1353
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1354 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1355
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1356 %!assert(round (1), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1357 %!assert(round (1.1), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1358 %!assert(round (5.5), 6);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1359 %!assert(round (i), i);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1360 %!assert(round (2.5+3.5i), 3+4i);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1361 %!assert(round (-2.6), -3);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1362 %!assert(round ([1.1, -2.4; -3.7, 7.1]), [1, -2; -4, 7]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1363
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1364 %!assert(round (single(1)), single(1));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1365 %!assert(round (single(1.1)), single(1));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1366 %!assert(round (single(5.5)), single(6));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1367 %!assert(round (single(i)), single(i));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1368 %!assert(round (single(2.5+3.5i)), single(3+4i));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1369 %!assert(round (single(-2.6)), single(-3));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1370 %!assert(round (single([1.1, -2.4; -3.7, 7.1])), single([1, -2; -4, 7]));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1371
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1372 %!error round ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1373 %!error round (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1374
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1375 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1376
7636 99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1377 DEFUN (roundb, args, ,
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1378 "-- texinfo --\n\
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1379 @deftypefn {Mapping Function} {} roundb (@var{x})\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 9041 diff changeset	1380 Return the integer nearest to @var{x}. If there are two nearest\n\
7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 9041 diff changeset	1381 integers, return the even one (banker's rounding). If @var{x} is complex,\n\
7636 99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1382 return @code{roundb (real (@var{x})) + roundb (imag (@var{x})) * I}.\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1383 @seealso{round}\n\
7636 99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1384 @end deftypefn")
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1385 {
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1386 octave_value retval;
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1387 if (args.length () == 1)
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1388 retval = args(0).roundb ();
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1389 else
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1390 print_usage ();
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1391
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1392 return retval;
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1393 }
99c410f7f0b0 implement mapper function for banker's rounding Jaroslav Hajek <highegg@gmail.com> parents: 7601 diff changeset	1394
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1395 DEFUN (sign, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1396 "-- texinfo --\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1397 @deftypefn {Mapping Function} {} sign (@var{x})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1398 Compute the @dfn{signum} function, which is defined as\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1399 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1400 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1401 {\\rm sign} (@var{x}) = \\cases{1,&$x>0$;\\cr 0,&$x=0$;\\cr -1,&$x<0$.\\cr}\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1402 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1403 @end tex\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	1404 @ifnottex\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1405 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1406 @example\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 9041 diff changeset	1407 @group\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1408 -1, x < 0;\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1409 sign (x) = 0, x = 0;\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1410 1, x > 0.\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 9041 diff changeset	1411 @end group\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1412 @end example\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 8459 diff changeset	1413 @end ifnottex\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1414 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1415 For complex arguments, @code{sign} returns @code{x ./ abs (@var{x})}.\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1416 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1417 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1418 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1419 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1420 retval = args(0).signum ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1421 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1422 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	1423
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1424 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1425 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1426
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1427 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1428
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1429 %!assert(sign (-2) , -1);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1430 %!assert(sign (3), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1431 %!assert(sign (0), 0);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1432 %!assert(sign ([1, -pi; e, 0]), [1, -1; 1, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1433
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1434 %!assert(sign (single(-2)) , single(-1));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1435 %!assert(sign (single(3)), single(1));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1436 %!assert(sign (single(0)), single(0));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1437 %!assert(sign (single([1, -pi; e, 0])), single([1, -1; 1, 0]));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1438
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1439 %!error sign ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1440 %!error sign (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1441
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1442 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1443
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1444 DEFUN (sin, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1445 "-- texinfo --\n\
3428 5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe] jwe parents: 3411 diff changeset	1446 @deftypefn {Mapping Function} {} sin (@var{x})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	1447 Compute the sine for each element of @var{x} in radians.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	1448 @seealso{asin, sind, sinh}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1449 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1450 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1451 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1452 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1453 retval = args(0).sin ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1454 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1455 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	1456
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1457 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1458 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1459
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1460 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1461
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1462 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1463 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1464 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1465 %! x = [0, pi/6, pi/4, pi/3, pi/2, 2pi/3, 3pi/4, 5*pi/6, pi];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1466 %! v = [0, 1/2, rt2/2, rt3/2, 1, rt3/2, rt2/2, 1/2, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1467 %! assert(sin (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1468
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1469 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1470 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1471 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1472 %! x = single([0, pi/6, pi/4, pi/3, pi/2, 2pi/3, 3pi/4, 5*pi/6, pi]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1473 %! v = single([0, 1/2, rt2/2, rt3/2, 1, rt3/2, rt2/2, 1/2, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1474 %! assert(sin (x), v, sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1475
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1476 %!error sin ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1477 %!error sin (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1478
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1479 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1480
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1481 DEFUN (sinh, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1482 "-- texinfo --\n\
3428 5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe] jwe parents: 3411 diff changeset	1483 @deftypefn {Mapping Function} {} sinh (@var{x})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	1484 Compute the hyperbolic sine for each element of @var{x}.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	1485 @seealso{asinh, cosh, tanh}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1486 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1487 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1488 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1489 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1490 retval = args(0).sinh ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1491 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1492 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	1493
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1494 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1495 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1496
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1497 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1498
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1499 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1500 %! x = [0, pi/2i, pii, 3pi/2i];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1501 %! v = [0, i, 0, -i];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1502 %! assert(sinh (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1503
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1504 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1505 %! x = single([0, pi/2i, pii, 3pi/2i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1506 %! v = single([0, i, 0, -i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1507 %! assert(sinh (x), v, sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1508
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1509 %!error sinh ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1510 %!error sinh (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1511
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1512 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1513
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1514 DEFUN (sqrt, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1515 "-- texinfo --\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1516 @deftypefn {Mapping Function} {} sqrt (@var{x})\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1517 Compute the square root of each element of @var{x}. If @var{x} is negative,\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1518 a complex result is returned. To compute the matrix square root, see\n\
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1519 @ref{Linear Algebra}.\n\
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9065 diff changeset	1520 @seealso{realsqrt}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1521 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1522 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1523 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1524 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1525 retval = args(0).sqrt ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1526 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1527 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	1528
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1529 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1530 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1531
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1532 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1533
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1534 %!assert(sqrt (4), 2)
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1535 %!assert(sqrt (-1), i)
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1536 %!assert(sqrt (1+i), exp (0.5 * log (1+i)), sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1537 %!assert(sqrt([4, -4; i, 1-i]), [2, 2i; exp(0.5 * log (i)), exp(0.5 * log (1-i))], sqrt(eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1538
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1539 %!assert(sqrt (single(4)), single(2))
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1540 %!assert(sqrt (single(-1)), single(i))
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1541 %!assert(sqrt (single(1+i)), single(exp (0.5 * log (1+i))), sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1542 %!assert(sqrt(single([4, -4; i, 1-i])), single([2, 2i; exp(0.5 * log (i)), exp(0.5 * log (1-i))]), sqrt(eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1543
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1544 %!error sqrt ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1545 %!error sqrt (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1546
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1547 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1548
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1549 DEFUN (tan, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1550 "-- texinfo --\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1551 @deftypefn {Mapping Function} {} tan (@var{z})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	1552 Compute the tangent for each element of @var{x} in radians.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	1553 @seealso{atan, tand, tanh}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1554 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1555 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1556 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1557 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1558 retval = args(0).tan ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1559 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1560 print_usage ();
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	1561
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1562 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1563 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1564
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1565 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1566
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1567 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1568 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1569 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1570 %! x = [0, pi/6, pi/4, pi/3, 2pi/3, 3pi/4, 5*pi/6, pi];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1571 %! v = [0, rt3/3, 1, rt3, -rt3, -1, -rt3/3, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1572 %! assert(tan (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1573
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1574 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1575 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1576 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1577 %! x = single([0, pi/6, pi/4, pi/3, 2pi/3, 3pi/4, 5*pi/6, pi]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1578 %! v = single([0, rt3/3, 1, rt3, -rt3, -1, -rt3/3, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1579 %! assert(tan (x), v, sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1580
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1581 %!error tan ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1582 %!error tan (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1583
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1584 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1585
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1586 DEFUN (tanh, args, ,
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1587 "-- texinfo --\n\
3428 5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe] jwe parents: 3411 diff changeset	1588 @deftypefn {Mapping Function} {} tanh (@var{x})\n\
9155 ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	1589 Compute hyperbolic tangent for each element of @var{x}.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9154 diff changeset	1590 @seealso{atanh, sinh, cosh}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1591 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1592 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1593 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1594 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1595 retval = args(0).tanh ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1596 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1597 print_usage ();
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1598
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1599 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1600 }
1562 1cff14ab83a4 [project @ 1995-10-12 11:02:40 by jwe] jwe parents: 1384 diff changeset	1601
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1602 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1603
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1604 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1605 %! x = [0, pi*i];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1606 %! v = [0, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1607 %! assert(tanh (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1608
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1609 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1610 %! x = single([0, pi*i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1611 %! v = single([0, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1612 %! assert(tanh (x), v, sqrt (eps('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1613
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1614 %!error tanh ();
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1615 %!error tanh (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1616
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1617 */
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7814 diff changeset	1618
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1619 DEFUNX ("toascii", Ftoascii, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1620 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1621 @deftypefn {Mapping Function} {} toascii (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1622 Return ASCII representation of @var{s} in a matrix. For example,\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1623 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1624 @example\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1625 @group\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1626 toascii (\"ASCII\")\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1627 @result{} [ 65, 83, 67, 73, 73 ]\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1628 @end group\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1629 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1630 @end example\n\
8442 502e58a0d44f Fix docstrings, add examples, references and tests to string functions Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8387 diff changeset	1631 @seealso{char}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1632 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1633 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1634 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1635 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1636 retval = args(0).xtoascii ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1637 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1638 print_usage ();
2267 4028b7c79927 [project @ 1996-05-24 00:39:30 by jwe] jwe parents: 2190 diff changeset	1639
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1640 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1641 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1642
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1643 DEFUNX ("tolower", Ftolower, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1644 "-- texinfo --\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1645 @deftypefn {Mapping Function} {} tolower (@var{s})\n\
8387 1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1646 @deftypefnx {Mapping Function} {} lower (@var{s})\n\
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1647 Return a copy of the string or cell string @var{s}, with each upper-case\n\
9209 923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction. Rik <rdrider0-list@yahoo.com> parents: 9167 diff changeset	1648 character replaced by the corresponding lower-case one; non-alphabetic\n\
8387 1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1649 characters are left unchanged. For example,\n\
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1650 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1651 @example\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 9041 diff changeset	1652 @group\n\
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1653 tolower (\"MiXeD cAsE 123\")\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1654 @result{} \"mixed case 123\"\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 9041 diff changeset	1655 @end group\n\
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1656 @end example\n\
8442 502e58a0d44f Fix docstrings, add examples, references and tests to string functions Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8387 diff changeset	1657 @seealso{toupper}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1658 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1659 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1660 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1661 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1662 retval = args(0).xtolower ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1663 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1664 print_usage ();
2267 4028b7c79927 [project @ 1996-05-24 00:39:30 by jwe] jwe parents: 2190 diff changeset	1665
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1666 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1667 }
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1668
8387 1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1669 DEFALIAS (lower, tolower);
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1670
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1671 /*
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1672
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1673 %!error <Invalid call to tolower.*> tolower();
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1674 %!error <Invalid call to tolower.*> lower();
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1675 %!assert(tolower("OCTAVE"), "octave");
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1676 %!assert(tolower("123OCTave!_&"), "123octave!_&");
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1677 %!assert(tolower({"ABC", "DEF", {"GHI", {"JKL"}}}), {"abc", "def", {"ghi", {"jkl"}}});
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1678 %!assert(tolower(["ABC"; "DEF"]), ["abc"; "def"]);
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1679 %!assert(tolower({["ABC"; "DEF"]}), {["abc";"def"]});
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1680 %!assert(tolower(68), "d");
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1681 %!assert(tolower({[68, 68; 68, 68]}), {["dd";"dd"]});
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1682 %!test
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1683 %! a(3,3,3,3) = "D";
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1684 %! assert(tolower(a)(3,3,3,3), "d");
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1685
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1686 */
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1687
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1688
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1689 DEFUNX ("toupper", Ftoupper, args, ,
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1690 "-- texinfo --\n\
3368 a4cd1e9d9962 [project @ 1999-11-20 17:22:48 by jwe] jwe parents: 3362 diff changeset	1691 @deftypefn {Built-in Function} {} toupper (@var{s})\n\
8387 1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1692 @deftypefnx {Built-in Function} {} upper (@var{s})\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 9041 diff changeset	1693 Return a copy of the string or cell string @var{s}, with each lower-case\n\
9209 923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction. Rik <rdrider0-list@yahoo.com> parents: 9167 diff changeset	1694 character replaced by the corresponding upper-case one; non-alphabetic\n\
8387 1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1695 characters are left unchanged. For example,\n\
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1696 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1697 @example\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1698 @group\n\
3552 41daa489833a [project @ 2000-02-03 03:05:28 by jwe] jwe parents: 3458 diff changeset	1699 toupper (\"MiXeD cAsE 123\")\n\
3361 4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1700 @result{} \"MIXED CASE 123\"\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1701 @end group\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe] jwe parents: 3322 diff changeset	1702 @end example\n\
8442 502e58a0d44f Fix docstrings, add examples, references and tests to string functions Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8387 diff changeset	1703 @seealso{tolower}\n\
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1704 @end deftypefn")
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1705 {
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1706 octave_value retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1707 if (args.length () == 1)
7528 26d8a92644de try to avoid ctype macro problems John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1708 retval = args(0).xtoupper ();
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1709 else
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1710 print_usage ();
3206 d0d2b69dc6c2 [project @ 1998-11-03 02:43:31 by jwe] jwe parents: 3156 diff changeset	1711
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1712 return retval;
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1713 }
3321 6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe] jwe parents: 3249 diff changeset	1714
8387 1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1715 DEFALIAS (upper, toupper);
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1716
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1717 /*
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1718
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1719 %!error <Invalid call to toupper.*> toupper();
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1720 %!error <Invalid call to toupper.*> upper();
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1721 %!assert(toupper("octave"), "OCTAVE");
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1722 %!assert(toupper("123OCTave!_&"), "123OCTAVE!_&");
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1723 %!assert(toupper({"abc", "def", {"ghi", {"jkl"}}}), {"ABC", "DEF", {"GHI", {"JKL"}}});
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1724 %!assert(toupper(["abc"; "def"]), ["ABC"; "DEF"]);
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1725 %!assert(toupper({["abc"; "def"]}), {["ABC";"DEF"]});
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1726 %!assert(toupper(100), "D");
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1727 %!assert(toupper({[100, 100; 100, 100]}), {["DD";"DD"]});
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1728 %!test
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1729 %! a(3,3,3,3) = "d";
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1730 %! assert(toupper(a)(3,3,3,3), "D");
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1731
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1732 */
1567db1e166c make upper and lower aliases of toupper and tolower respectively Thorsten Meyer <thorsten.meyier@gmx.de> parents: 8366 diff changeset	1733
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1734 DEFALIAS (gammaln, lgamma);
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1735
8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7385 diff changeset	1736 DEFALIAS (isfinite, finite);
529 7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe] jwe parents: 331 diff changeset	1737
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1738 /*
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1739 ;;; Local Variables: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1740 ;;; mode: C++ ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1741 ;;; End: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1742 */

Mercurial > hg > octave-lyh

annotate src/mappers.cc @ 9428:b317debeb828