Mercurial > forge
view main/quaternion/inst/@quaternion/private/norm2.m @ 9892:8ad402be2313 octave-forge
main/quaternion --> extra/quaternion-legacy, extra/quaternion_oo --> main/quaternion
author | paramaniac |
---|---|
date | Wed, 28 Mar 2012 03:16:58 +0000 |
parents | extra/quaternion_oo/inst/@quaternion/private/norm2.m@ce33c133cad7 |
children |
line wrap: on
line source
## 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{norm2} =} norm2 (@var{q}) ## Return squared norm of a quaternion. ## @end deftypefn ## Author: Lukas Reichlin <lukas.reichlin@gmail.com> ## Created: November 2011 ## Version: 0.1 function ret = norm2 (a) ret = a.w.^2 + a.x.^2 + a.y.^2 + a.z.^2; endfunction