Mercurial > forge
view main/quaternion/inst/@quaternion/blkdiag.m @ 9892:8ad402be2313 octave-forge
main/quaternion --> extra/quaternion-legacy, extra/quaternion_oo --> main/quaternion
author | paramaniac |
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date | Wed, 28 Mar 2012 03:16:58 +0000 |
parents | extra/quaternion_oo/inst/@quaternion/blkdiag.m@22154252a545 |
children |
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## Copyright (C) 2011 Lukas F. Reichlin ## ## This program is free software: you can redistribute it and/or modify ## it under the terms of the GNU General Public License as published by ## the Free Software Foundation, either version 3 of the License, or ## (at your option) any later version. ## ## This program is distributed in the hope that it will be useful, ## but WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with this program. If not, see <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {@var{q} =} blkdiag (@var{q1}, @var{q2}, @dots{}) ## Block-diagonal concatenation of quaternions. ## @end deftypefn ## Author: Lukas Reichlin <lukas.reichlin@gmail.com> ## Created: December 2011 ## Version: 0.1 function q = blkdiag (varargin) tmp = cellfun (@quaternion, varargin); # uniformoutput = true ! w = blkdiag (tmp.w); x = blkdiag (tmp.x); y = blkdiag (tmp.y); z = blkdiag (tmp.z); q = quaternion (w, x, y, z); endfunction %!shared C, D %! Aw = [2, 6; 10, 14]; %! Ax = [3, 7; 11, 15]; %! Ay = [4, 8; 12, 16]; %! Az = [5, 9; 13, 17]; %! A = quaternion (Aw, Ax, Ay, Az); %! %! Bw = [2, 6, 10; 14, 18, 22]; %! Bx = [3, 7, 11; 15, 19, 23]; %! By = [4, 8, 12; 16, 20, 24]; %! Bz = [5, 9, 13; 17, 21, 25]; %! B = quaternion (Bw, Bx, By, Bz); %! %! C = blkdiag (A, B); %! %! Dw = blkdiag (Aw, Bw); %! Dx = blkdiag (Ax, Bx); %! Dy = blkdiag (Ay, By); %! Dz = blkdiag (Az, Bz); %! D = quaternion (Dw, Dx, Dy, Dz); %!assert (C == D);