octave-nkf: scripts/general/cart2pol.m annotate

annotate scripts/general/cart2pol.m @ 17585:36b9fa789d8e

Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. * scripts/general/cart2pol.m: Use @var{P} (capital) in docstring. Initialize z to []. Return 3-column matrix when nargout == 1. Modify %!test to check this behavior. * scripts/general/cart2sph.m: Use @var{C} (capital) in docstring. Return 3-column matrix when nargout == 1. Modify %!test to check this behavior. scripts/general/pol2cart.m: Use @var{P} (capital) in docstring. Use 'C' in %!test to refer to single Cartesian matrix of coordinates. scripts/general/sph2cart.m: Use @var{C} (capital) in docstring. Return 3-column matrix when nargout == 1. Modify %!test to check this behavior.

author	Rik <rik@octave.org>
date	Sun, 06 Oct 2013 21:01:10 -0700
parents	f3d52523cde1
children	d63878346099

rev	line source
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	1 ## Copyright (C) 2000-2012 Kai Habel
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	2 ##
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	3 ## This file is part of Octave.
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	4 ##
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	5 ## Octave is free software; you can redistribute it and/or modify it
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	6 ## under the terms of the GNU General Public License as published by
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6786 diff changeset	7 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6786 diff changeset	8 ## your option) any later version.
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	9 ##
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	10 ## Octave is distributed in the hope that it will be useful, but
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	13 ## General Public License for more details.
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	14 ##
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	15 ## 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: 6786 diff changeset	16 ## along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6786 diff changeset	17 ## <http://www.gnu.org/licenses/>.
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	18
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	19 ## -- texinfo --
9168 742cf6388a8f Update section 17.7 (Coordinate Transformations) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	20 ## @deftypefn {Function File} {[@var{theta}, @var{r}] =} cart2pol (@var{x}, @var{y})
5610 9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5307 diff changeset	21 ## @deftypefnx {Function File} {[@var{theta}, @var{r}, @var{z}] =} cart2pol (@var{x}, @var{y}, @var{z})
17585 36b9fa789d8e Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. Rik <rik@octave.org> parents: 14363 diff changeset	22 ## @deftypefnx {Function File} {[@var{theta}, @var{r}] =} cart2pol (@var{C})
36b9fa789d8e Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. Rik <rik@octave.org> parents: 14363 diff changeset	23 ## @deftypefnx {Function File} {[@var{theta}, @var{r}, @var{z}] =} cart2pol (@var{C})
36b9fa789d8e Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. Rik <rik@octave.org> parents: 14363 diff changeset	24 ## @deftypefnx {Function File} {@var{P} =} cart2pol (@dots{})
10688 7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	25 ##
9168 742cf6388a8f Update section 17.7 (Coordinate Transformations) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	26 ## Transform Cartesian to polar or cylindrical coordinates.
10688 7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	27 ##
9168 742cf6388a8f Update section 17.7 (Coordinate Transformations) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	28 ## @var{theta} describes the angle relative to the positive x-axis.
10687 a8ce6bdecce5 Improve documentation strings. Rik <octave@nomad.inbox5.com> parents: 9168 diff changeset	29 ## @var{r} is the distance to the z-axis @w{(0, 0, z)}.
17585 36b9fa789d8e Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. Rik <rik@octave.org> parents: 14363 diff changeset	30 ## @var{x}, @var{y} (, and @var{z}) must be the same shape, or scalar.
36b9fa789d8e Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. Rik <rik@octave.org> parents: 14363 diff changeset	31 ## If called with a single matrix argument then each row of @var{C}
10688 7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	32 ## represents the Cartesian coordinate (@var{x}, @var{y} (, @var{z})).
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	33 ##
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	34 ## If only a single return argument is requested then return a matrix
17585 36b9fa789d8e Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. Rik <rik@octave.org> parents: 14363 diff changeset	35 ## @var{P} where each row represents one polar/(cylindrical) coordinate
10688 7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	36 ## (@var{theta}, @var{phi} (, @var{z})).
5642 2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe] jwe parents: 5610 diff changeset	37 ## @seealso{pol2cart, cart2sph, sph2cart}
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	38 ## @end deftypefn
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	39
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	40 ## Author: Kai Habel <kai.habel@gmx.de>
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	41 ## Adapted-by: jwe
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	42
17585 36b9fa789d8e Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. Rik <rik@octave.org> parents: 14363 diff changeset	43 function [theta, r, z] = cart2pol (x, y, z = [])
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	44
10688 7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	45 if (nargin < 1 \|\| nargin > 3)
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	46 print_usage ();
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	47 endif
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	48
10688 7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	49 if (nargin == 1)
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	50 if (ismatrix (x) && (columns (x) == 2 \|\| columns (x) == 3))
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	51 if (columns (x) == 3)
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	52 z = x(:,3);
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	53 endif
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	54 y = x(:,2);
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	55 x = x(:,1);
10688 7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	56 else
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	57 error ("cart2pol: matrix input must have 2 or 3 columns [X, Y (, Z)]");
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	58 endif
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	59 elseif (nargin == 2)
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	60 if (! ((ismatrix (x) && ismatrix (y))
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	61 && (size_equal (x, y) \|\| isscalar (x) \|\| isscalar (y))))
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	62 error ("cart2pol: arguments must be matrices of same size, or scalar");
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	63 endif
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	64 elseif (nargin == 3)
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	65 if (! ((ismatrix (x) && ismatrix (y) && ismatrix (z))
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	66 && (size_equal (x, y) \|\| isscalar (x) \|\| isscalar (y))
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	67 && (size_equal (x, z) \|\| isscalar (x) \|\| isscalar (z))
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	68 && (size_equal (y, z) \|\| isscalar (y) \|\| isscalar (z))))
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	69 error ("cart2pol: arguments must be matrices of same size, or scalar");
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	70 endif
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	71 endif
8533 fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	72
10688 7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	73 theta = atan2 (y, x);
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	74 r = sqrt (x .^ 2 + y .^ 2);
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	75
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	76 if (nargout <= 1)
17585 36b9fa789d8e Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. Rik <rik@octave.org> parents: 14363 diff changeset	77 theta = [theta(:), r(:), z(:)];
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	78 endif
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	79
8533 fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	80 endfunction
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	81
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	82
8533 fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	83 %!test
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	84 %! x = [0, 1, 2];
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	85 %! y = 0;
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	86 %! [t, r] = cart2pol (x, y);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	87 %! assert (t, [0, 0, 0]);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	88 %! assert (r, x);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	89
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	90 %!test
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	91 %! x = [0, 1, 2];
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	92 %! y = [0, 1, 2];
17585 36b9fa789d8e Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. Rik <rik@octave.org> parents: 14363 diff changeset	93 %! P = cart2pol (x, y);
36b9fa789d8e Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. Rik <rik@octave.org> parents: 14363 diff changeset	94 %! assert (P(:,1), [0; pi/4; pi/4], sqrt (eps));
36b9fa789d8e Overhaul polar, spherical, cartesian conversion routiens when nargout == 1. Rik <rik@octave.org> parents: 14363 diff changeset	95 %! assert (P(:,2), sqrt (2)*[0; 1; 2], sqrt (eps));
8533 fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	96
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	97 %!test
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	98 %! x = [0, 1, 2];
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	99 %! y = [0, 1, 2];
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	100 %! z = [0, 1, 2];
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	101 %! [t, r, z2] = cart2pol (x, y, z);
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	102 %! assert (t, [0, pi/4, pi/4], sqrt (eps));
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	103 %! assert (r, sqrt (2)*[0, 1, 2], sqrt (eps));
8533 fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	104 %! assert (z, z2);
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	105
8533 fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	106 %!test
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	107 %! x = [0, 1, 2];
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	108 %! y = 0;
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	109 %! z = 0;
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	110 %! [t, r, z2] = cart2pol (x, y, z);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	111 %! assert (t, [0, 0, 0], eps);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	112 %! assert (r, x, eps);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	113 %! assert (z, z2);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	114
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	115 %!test
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	116 %! x = 0;
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	117 %! y = [0, 1, 2];
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	118 %! z = 0;
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	119 %! [t, r, z2] = cart2pol (x, y, z);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	120 %! assert (t, [0, 1, 1]*pi/2, eps);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	121 %! assert (r, y, eps);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	122 %! assert (z, z2);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	123
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	124 %!test
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	125 %! x = 0;
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	126 %! y = 0;
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	127 %! z = [0, 1, 2];
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	128 %! [t, r, z2] = cart2pol (x, y, z);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	129 %! assert (t, 0);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	130 %! assert (r, 0);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	131 %! assert (z, z2);
fb1b87ea4af9 Permit scalars when transforming coordinates. Ben Abbott <bpabbott@mac.com> parents: 8491 diff changeset	132
10688 7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	133 %!test
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	134 %! C = [0, 0; 1, 1; 2, 2];
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	135 %! P = [0, 0; pi/4, sqrt(2); pi/4, 2*sqrt(2)];
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	136 %! assert (cart2pol (C), P, sqrt (eps));
10688 7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	137
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	138 %!test
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	139 %! C = [0, 0, 0; 1, 1, 1; 2, 2, 2];
7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	140 %! P = [0, 0, 0; pi/4, sqrt(2), 1; pi/4, 2*sqrt(2), 2];
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	141 %! assert (cart2pol (C), P, sqrt (eps));
10688 7357e37f34fa coordinate transforms: add option to operate on column matrix of coordinates. Rik <octave@nomad.inbox5.com> parents: 10687 diff changeset	142

Mercurial > octave-nkf

annotate scripts/general/cart2pol.m @ 17585:36b9fa789d8e