octave: scripts/general/del2.m annotate

annotate scripts/general/del2.m @ 27978:a4268efb7334

maint: Eliminate single "Author:" lines from code base. * color-picker.cc, color-picker.h, octave-qscintilla.cc, octave-qscintilla.h, octave-txt-lexer.cc, octave-txt-lexer.h, balance.cc, kron.cc, lookup.cc, ls-hdf5.cc, ls-mat5.cc, ls-oct-text.cc, sylvester.cc, tsearch.cc, jit-ir.cc, jit-ir.h, jit-typeinfo.cc, jit-typeinfo.h, jit-util.cc, jit-util.h, pt-jit.cc, pt-jit.h, Array-jit.cc, bsxfun.h, url-transfer.cc, url-transfer.h, acosd.m, acotd.m, acscd.m, asecd.m, asind.m, atand.m, cosd.m, cotd.m, cscd.m, secd.m, sind.m, tand.m, cart2pol.m, cart2sph.m, curl.m, del2.m, divergence.m, flip.m, pol2cart.m, randi.m, sortrows.m, sph2cart.m, griddata3.m, griddatan.m, rectint.m, voronoi.m, dialog.m, guidata.m, guihandles.m, __file_filter__.m, __fltk_file_filter__.m, __get_funcname__.m, __is_function__.m, __uigetdir_fltk__.m, __uigetfile_fltk__.m, __uiobject_split_args__.m, __uiputfile_fltk__.m, uibuttongroup.m, uicontextmenu.m, uicontrol.m, uigetdir.m, uigetfile.m, uimenu.m, uipanel.m, uipushtool.m, uiputfile.m, uiresume.m, uitoggletool.m, uitoolbar.m, uiwait.m, doc.m, autumn.m, bone.m, cmpermute.m, cmunique.m, cool.m, copper.m, cubehelix.m, flag.m, frame2im.m, hot.m, hsv.m, hsv2rgb.m, im2frame.m, imfinfo.m, imformats.m, iscolormap.m, jet.m, pink.m, prism.m, __imfinfo__.m, rainbow.m, rgb2hsv.m, spinmap.m, spring.m, viridis.m, white.m, winter.m, importdata.m, strmatch.m, bandwidth.m, isbanded.m, isdiag.m, istril.m, istriu.m, krylov.m, linsolve.m, logm.m, lscov.m, subspace.m, bunzip2.m, compare_versions.m, edit.m, fullfile.m, getfield.m, gunzip.m, inputParser.m, license.m, nargchk.m, narginchk.m, nthargout.m, python.m, setfield.m, tar.m, unpack.m, ver.m, zip.m, odeplot.m, fminbnd.m, fminunc.m, fsolve.m, fzero.m, glpk.m, humps.m, pathdef.m, savepath.m, diffuse.m, lighting.m, material.m, shading.m, specular.m, contour.m, ellipsoid.m, isocaps.m, isocolors.m, isonormals.m, isosurface.m, light.m, pcolor.m, __interp_cube__.m, __marching_cube__.m, __patch__.m, __stem__.m, reducepatch.m, reducevolume.m, ribbon.m, shrinkfaces.m, slice.m, stem.m, surf.m, surfl.m, tetramesh.m, waterfall.m, __actual_axis_position__.m, __next_line_color__.m, allchild.m, figure.m, findall.m, findobj.m, gcf.m, hggroup.m, isprop.m, ndgrid.m, __add_default_menu__.m, saveas.m, __splinefit__.m, prefdir.m, preferences.m, profexplore.m, profexport.m, profile.m, profshow.m, setdiff.m, freqz.m, freqz_plot.m, sinc.m, unwrap.m, pcr.m, qmr.m, sprandn.m, betaincinv.m, cosint.m, ellipke.m, factor.m, gammaincinv.m, legendre.m, nchoosek.m, primes.m, invhilb.m, toeplitz.m, erase.m, mat2str.m, strtrim.m, validatestring.m, fail.m, compare_plot_demos.m, dump_demos.m, html_compare_plot_demos.m, addtodate.m, datenum.m, jit.tst: Eliminate single "Author:" lines from code base.

author	Rik <rik@octave.org>
date	Tue, 21 Jan 2020 12:53:13 -0800
parents	bd51beb6205e
children	90fea9cc9caa 0a5b15007766

rev	line source
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	1 ########################################################################
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	2 ##
27919 1891570abac8 update Octave Project Developers copyright for the new year John W. Eaton <jwe@octave.org> parents: 27918 diff changeset	3 ## Copyright (C) 2000-2020 The Octave Project Developers
27918 b442ec6dda5c use centralized file for copyright info for individual contributors John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	4 ##
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	5 ## See the file COPYRIGHT.md in the top-level directory of this
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	6 ## distribution or <https://octave.org/copyright/>.
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	7 ##
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	8 ## This file is part of Octave.
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	9 ##
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 23946 diff changeset	10 ## Octave is free software: you can redistribute it and/or modify it
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	11 ## under the terms of the GNU General Public License as published by
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 23946 diff changeset	12 ## the Free Software Foundation, either version 3 of the License, or
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22323 diff changeset	13 ## (at your option) any later version.
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	14 ##
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	15 ## Octave is distributed in the hope that it will be useful, but
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	16 ## WITHOUT ANY WARRANTY; without even the implied warranty of
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22323 diff changeset	17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22323 diff changeset	18 ## GNU General Public License for more details.
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	19 ##
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	20 ## 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: 6788 diff changeset	21 ## along with Octave; see the file COPYING. If not, see
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 23946 diff changeset	22 ## <https://www.gnu.org/licenses/>.
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	23 ##
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	24 ########################################################################
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	25
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	26 ## -- texinfo --
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	27 ## @deftypefn {} {@var{L} =} del2 (@var{M})
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	28 ## @deftypefnx {} {@var{L} =} del2 (@var{M}, @var{h})
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	29 ## @deftypefnx {} {@var{L} =} del2 (@var{M}, @var{dx}, @var{dy}, @dots{})
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	30 ##
9165 8c71a86c4bf4 Update section 17.5 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9141 diff changeset	31 ## Calculate the discrete Laplace
8c71a86c4bf4 Update section 17.5 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9141 diff changeset	32 ## @tex
8c71a86c4bf4 Update section 17.5 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9141 diff changeset	33 ## operator $( \nabla^2 )$.
8c71a86c4bf4 Update section 17.5 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9141 diff changeset	34 ## @end tex
8c71a86c4bf4 Update section 17.5 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9141 diff changeset	35 ## @ifnottex
8c71a86c4bf4 Update section 17.5 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9141 diff changeset	36 ## operator.
8c71a86c4bf4 Update section 17.5 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9141 diff changeset	37 ## @end ifnottex
20158 7503499a252b doc: Update docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19833 diff changeset	38 ##
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	39 ## For a 2-dimensional matrix @var{M} this is defined as
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	40 ## @tex
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	41 ## $$L = {1 \over 4} \left( {d^2 \over dx^2} M(x,y) + {d^2 \over dy^2} M(x,y) \right)$$
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	42 ## @end tex
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	43 ## @ifnottex
10821 693e22af08ae Grammarcheck documentation of m-files Rik <octave@nomad.inbox5.com> parents: 10793 diff changeset	44 ##
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	45 ## @example
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	46 ## @group
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	47 ## 1 / d^2 d^2 \
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	48 ## L = --- * \| --- M(x,y) + --- M(x,y) \|
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	49 ## 4 \ dx^2 dy^2 /
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	50 ## @end group
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	51 ## @end example
10821 693e22af08ae Grammarcheck documentation of m-files Rik <octave@nomad.inbox5.com> parents: 10793 diff changeset	52 ##
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	53 ## @end ifnottex
21546 f7f97d7e9294 doc: Wrap m-file docstrings to 79 characters + newline (80 total). Rik <rik@octave.org> parents: 20852 diff changeset	54 ## For N-dimensional arrays the sum in parentheses is expanded to include
f7f97d7e9294 doc: Wrap m-file docstrings to 79 characters + newline (80 total). Rik <rik@octave.org> parents: 20852 diff changeset	55 ## second derivatives over the additional higher dimensions.
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	56 ##
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	57 ## The spacing between evaluation points may be defined by @var{h}, which is a
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	58 ## scalar defining the equidistant spacing in all dimensions. Alternatively,
10793 be55736a0783 Grammarcheck the documentation from m-files. Rik <octave@nomad.inbox5.com> parents: 10635 diff changeset	59 ## the spacing in each dimension may be defined separately by @var{dx},
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	60 ## @var{dy}, etc. A scalar spacing argument defines equidistant spacing,
10793 be55736a0783 Grammarcheck the documentation from m-files. Rik <octave@nomad.inbox5.com> parents: 10635 diff changeset	61 ## whereas a vector argument can be used to specify variable spacing. The
be55736a0783 Grammarcheck the documentation from m-files. Rik <octave@nomad.inbox5.com> parents: 10635 diff changeset	62 ## length of the spacing vectors must match the respective dimension of
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	63 ## @var{M}. The default spacing value is 1.
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	64 ##
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	65 ## Dimensions with fewer than 3 data points are skipped. Boundary points are
9141 c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi Rik <rdrider0-list@yahoo.com> parents: 9051 diff changeset	66 ## calculated from the linear extrapolation of interior points.
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	67 ##
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	68 ## Example: Second derivative of 2*x^3
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	69 ##
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	70 ## @example
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	71 ## @group
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	72 ## f = @@(x) 2*x.^3;
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	73 ## dd = @@(x) 12*x;
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	74 ## x = 1:6;
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	75 ## L = 4*del2 (f(x));
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	76 ## assert (L, dd (x));
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	77 ## @end group
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	78 ## @end example
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	79 ##
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	80 ## @seealso{gradient, diff}
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	81 ## @end deftypefn
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	82
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	83 function L = del2 (M, varargin)
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	84
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	85 if (nargin < 1)
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	86 print_usage ();
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	87 endif
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	88
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	89 nd = ndims (M);
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	90 sz = size (M);
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	91 dx = cell (1, nd);
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	92 if (nargin == 1)
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	93 for i = 1 : nd
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	94 dx(i) = ones (sz(i), 1);
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	95 endfor
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	96 elseif (nargin == 2 && isscalar (varargin{1}))
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	97 h = varargin{1};
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	98 for i = 1 : nd
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	99 dx(i) = h * ones (sz(i), 1);
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	100 endfor
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	101 elseif (numel (varargin) <= nd)
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	102 ndx = numel (varargin);
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	103 varargin(ndx+1:nd) = 1; # Fill missing dims with 1.
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	104 ## Reverse dx{1} and dx{2} as the X-dim is the 2nd dim of a meshgrid array
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	105 varargin([1, 2]) = varargin([2, 1]);
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	106 for i = 1 : nd
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	107 arg = varargin{i};
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	108 if (isscalar (arg))
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	109 dx(i) = arg * ones (sz(i), 1);
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	110 elseif (isvector (arg))
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	111 if (length (arg) != sz(i))
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	112 error ("del2: number of elements in spacing vector %d does not match dimension %d of M", i, i);
10549 95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9167 diff changeset	113 endif
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	114 dx(i) = diff (varargin{i})(:);
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	115 else
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	116 error ("del2: spacing element %d must be a scalar or vector", i);
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	117 endif
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	118 endfor
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	119 else
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	120 print_usage ();
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	121 endif
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	122
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	123 idx = cell (1, nd);
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	124 idx(:) = ":";
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	125
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	126 L = zeros (sz);
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	127 for i = 1 : nd
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	128 if (sz(i) >= 3)
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	129 DD = zeros (sz);
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	130 idx1 = idx2 = idx3 = idx;
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	131
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	132 ## interior points
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	133 idx1{i} = 1 : sz(i) - 2;
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	134 idx2{i} = 2 : sz(i) - 1;
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	135 idx3{i} = 3 : sz(i);
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	136 szi = sz;
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	137 szi(i) = 1;
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	138
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	139 h1 = repmat (shiftdim (dx{i}(1 : sz(i) - 2), 1 - i), szi);
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	140 h2 = repmat (shiftdim (dx{i}(2 : sz(i) - 1), 1 - i), szi);
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	141 DD(idx2{:}) = ((M(idx1{:}) - M(idx2{:})) ./ h1 + ...
10549 95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9167 diff changeset	142 (M(idx3{:}) - M(idx2{:})) ./ h2) ./ (h1 + h2);
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	143
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	144 ## left and right boundary
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	145 if (sz(i) == 3)
10549 95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9167 diff changeset	146 DD(idx1{:}) = DD(idx3{:}) = DD(idx2{:});
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	147 else
10549 95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9167 diff changeset	148 idx1{i} = 1;
95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9167 diff changeset	149 idx2{i} = 2;
95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9167 diff changeset	150 idx3{i} = 3;
19833 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19697 diff changeset	151 DD(idx1{:}) = (dx{i}(1) + dx{i}(2)) / dx{i}(2) * DD(idx2{:}) - ...
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19697 diff changeset	152 dx{i}(1) / dx{i}(2) * DD(idx3{:});
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	153
10549 95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9167 diff changeset	154 idx1{i} = sz(i);
95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9167 diff changeset	155 idx2{i} = sz(i) - 1;
95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9167 diff changeset	156 idx3{i} = sz(i) - 2;
19833 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19697 diff changeset	157 DD(idx1{:}) = (dx{i}(sz(i) - 1) + dx{i}(sz(i) - 2)) / ...
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19697 diff changeset	158 dx{i}(sz(i) - 2) * DD(idx2{:}) - ...
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19697 diff changeset	159 dx{i}(sz(i) - 1) / dx{i}(sz(i) - 2) * DD(idx3{:});
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	160 endif
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	161
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	162 L += DD;
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	163 endif
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	164 endfor
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	165
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	166 L ./= nd;
21758 ffad2baa90f7 maint: Use newlines to make code more readable. Rik <rik@octave.org> parents: 21562 diff changeset	167
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	168 endfunction
17338 1c89599167a6 maint: End m-files with 1 blank line. Rik <rik@octave.org> parents: 14138 diff changeset	169
18617 21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	170
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	171 ## 3x3 constant test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	172 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	173 %! a = ones (3,3);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	174 %! b = del2 (a);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	175 %! assert (b(:,1), [0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	176 %! assert (b(:,2), [0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	177 %! assert (b(:,3), [0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	178
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	179 ## 3x3 planar test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	180 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	181 %! a = [1,2,3;2,3,4;3,4,5];
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	182 %! b = del2 (a);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	183 %! assert (b(:,1), [0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	184 %! assert (b(:,2), [0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	185 %! assert (b(:,3), [0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	186
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	187 ## 3x3 corner test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	188 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	189 %! a = zeros (3,3);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	190 %! a(1,1) = 1.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	191 %! b = 2*del2 (a);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	192 %! assert (b(:,1), [1.00;0.50;0.50]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	193 %! assert (b(:,2), [0.50;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	194 %! assert (b(:,3), [0.50;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	195 %! assert (b, flipud (2*del2 (flipud (a))));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	196 %! assert (b, fliplr (2*del2 (fliplr (a))));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	197 %! assert (b, flipud (fliplr (2*del2 (fliplr (flipud (a))))));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	198
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	199 ## 3x3 boundary test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	200 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	201 %! a = zeros (3,3);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	202 %! a(2,1)=1.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	203 %! b = 2*del2 (a);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	204 %! assert (b(:,1), [-1.00;-0.50;-1.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	205 %! assert (b(:,2), [0.00;0.50;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	206 %! assert (b(:,3), [0.00;0.50;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	207 %! assert (b, flipud (2*del2 (flipud (a))));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	208 %! assert (b, fliplr (2*del2 (fliplr (a))));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	209 %! assert (b, flipud (fliplr (2*del2 (fliplr (flipud (a))))));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	210
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	211 ## 3x3 center test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	212 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	213 %! a = zeros (3,3);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	214 %! a(2,2) = 1.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	215 %! b = del2 (a);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	216 %! assert (b(:,1), [0.00;-0.50;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	217 %! assert (b(:,2), [-0.50;-1.00;-0.50]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	218 %! assert (b(:,3), [0.00;-0.50;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	219
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	220 ## 4x4 constant test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	221 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	222 %! a = ones (4,4);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	223 %! b = del2 (a);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	224 %! assert (b(:,1), [0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	225 %! assert (b(:,2), [0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	226 %! assert (b(:,3), [0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	227 %! assert (b(:,4), [0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	228
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	229 ## 4x4 planar test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	230 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	231 %! a = [1,2,3,4;2,3,4,5;3,4,5,6;4,5,6,7];
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	232 %! b = del2 (a);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	233 %! assert (b(:,1), [0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	234 %! assert (b(:,2), [0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	235 %! assert (b(:,3), [0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	236 %! assert (b(:,4), [0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	237
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	238 ## 4x4 corner test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	239 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	240 %! a = zeros (4,4);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	241 %! a(1,1) = 1.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	242 %! b = 2*del2 (a);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	243 %! assert (b(:,1), [2.00;0.50;0.00;-0.50]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	244 %! assert (b(:,2), [0.50;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	245 %! assert (b(:,3), [0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	246 %! assert (b(:,4), [-0.50;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	247 %! assert (b, flipud (2*del2 (flipud (a))));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	248 %! assert (b, fliplr (2*del2 (fliplr (a))));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	249 %! assert (b, flipud (fliplr (2*del2 (fliplr (flipud (a))))));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	250
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	251 ## 9x9 center test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	252 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	253 %! a = zeros (9,9);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	254 %! a(5,5) = 1.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	255 %! b = 2*del2 (a);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	256 %! assert (b(:,1), [0.00;0.00;0.00;0.00;0.00;0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	257 %! assert (b(:,2), [0.00;0.00;0.00;0.00;0.00;0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	258 %! assert (b(:,3), [0.00;0.00;0.00;0.00;0.00;0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	259 %! assert (b(:,4), [0.00;0.00;0.00;0.00;0.50;0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	260 %! assert (b(:,5), [0.00;0.00;0.00;0.50;-2.00;0.50;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	261 %! assert (b(:,6), b(:,4));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	262 %! assert (b(:,7), b(:,3));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	263 %! assert (b(:,8), b(:,2));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	264 %! assert (b(:,9), b(:,1));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	265
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	266 ## 9x9 boundary test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	267 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	268 %! a = zeros (9,9);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	269 %! a(1,5) = 1.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	270 %! b = 2*del2 (a);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	271 %! assert (b(1,:), [0.00,0.00,0.00,0.50,0.00,0.50,0.00,0.00,0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	272 %! assert (b(2,:), [0.00,0.00,0.00,0.00,0.50,0.00,0.00,0.00,0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	273 %! assert (b(3:9,:), zeros (7,9));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	274 %! a(1,5) = 0.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	275 %! a(5,1) = 1.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	276 %! b = 2*del2 (a);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	277 %! assert (b(:,1), [0.00;0.00;0.00;0.50;0.00;0.50;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	278 %! assert (b(:,2), [0.00;0.00;0.00;0.00;0.50;0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	279 %! assert (b(:,3:9), zeros (9,7));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	280
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	281 ## 9x9 dh center test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	282 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	283 %! a = zeros (9,9);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	284 %! a(5,5) = 1.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	285 %! b = 8*del2 (a,2);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	286 %! assert (b(:,1:3), zeros (9,3));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	287 %! assert (b(:,4), [0.00;0.00;0.00;0.00;0.50;0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	288 %! assert (b(:,5), [0.00;0.00;0.00;0.50;-2.00;0.50;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	289 %! assert (b(:,6), b(:,4));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	290 %! assert (b(:,7:9), zeros (9,3));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	291
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	292 ## 9x9 dx test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	293 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	294 %! a = zeros (9,9);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	295 %! a(5,5) = 1.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	296 %! b = 4*del2 (a,2,1);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	297 %! assert (b(1:3,:), zeros (3,9));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	298 %! assert (b(4,:), [0.00;0.00;0.00;0.00;1.00;0.00;0.00;0.00;0.00]');
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	299 %! assert (b(5,:), [0.00;0.00;0.00;0.25;-2.5;0.25;0.00;0.00;0.00]');
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	300 %! assert (b(6,:), b(4,:));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	301 %! assert (b(7:9,:), zeros (3,9));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	302
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	303 ## 9x9 dy test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	304 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	305 %! a = zeros (9,9);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	306 %! a(5,5) = 1.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	307 %! b = 4*del2 (a,1,2);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	308 %! assert (b(:,1:3), zeros (9,3));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	309 %! assert (b(:,4), [0.00;0.00;0.00;0.00;1.00;0.00;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	310 %! assert (b(:,5), [0.00;0.00;0.00;0.25;-2.5;0.25;0.00;0.00;0.00]);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	311 %! assert (b(:,6), b(:,4));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	312 %! assert (b(:,7:9), zeros (9,3));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	313
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	314 ## 3D test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	315 %!test
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	316 %! a = zeros (9,9,9);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	317 %! a(5,5,5) = 1.0;
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	318 %! b = 83del2 (a,2);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	319 %! assert (b(:,:,1:3), zeros (9,9,3));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	320 %! assert (b(:,1:3,:), zeros (9,3,9));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	321 %! assert (b(1:3,:,:), zeros (3,9,9));
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	322 %! assert (b(4:5,4,4), [0.0,0.0]');
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	323 %! assert (b(5,5,4), 1.00);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	324 %! assert (b(4,4,5), 0.00);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	325 %! assert (b(5,4,5), 1.00);
21e5205679d0 del2.m: Add %!tests (bug #42005). Allan Jacobs <jacobsallanster@gmail.com> parents: 17744 diff changeset	326 %! assert (b(5,5,5),-6.00);
19126 995df67fc912 Flip arrays - ND support for fliplr and flipud, and replace flipdim with flip. Carnë Draug <carandraug+dev@gmail.com> parents: 18617 diff changeset	327 %! assert (b, flip (b,1));
995df67fc912 Flip arrays - ND support for fliplr and flipud, and replace flipdim with flip. Carnë Draug <carandraug+dev@gmail.com> parents: 18617 diff changeset	328 %! assert (b, flip (b,2));
995df67fc912 Flip arrays - ND support for fliplr and flipud, and replace flipdim with flip. Carnë Draug <carandraug+dev@gmail.com> parents: 18617 diff changeset	329 %! assert (b, flip (b,3));
23946 c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	330
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	331 %!test <*51728>
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	332 %! x = linspace (-2pi, 2pi);
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	333 %! U = cos (x);
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	334 %! L = 4*del2 (U, x);
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	335
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	336 ## Test input validation
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	337 %!error del2 ()
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	338 %!error del2 (1, 1, 2, 3)
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	339 %!error <in spacing vector 1> del2 (1, 2, [1 1])
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	340 %!error <in spacing vector 2> del2 (1, [1 1], 2)
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	341 %!error <must be a scalar or vector> del2 (1, ones (2,2), 2)
c7b801f36be4 del2.m: Overhaul function (bug #51728). Rik <rik@octave.org> parents: 23220 diff changeset	342

Mercurial > octave

annotate scripts/general/del2.m @ 27978:a4268efb7334