X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;ds=sidebyside;f=octave_packages%2Fquaternion-2.0.0%2F%40quaternion%2Fconj.m;fp=octave_packages%2Fquaternion-2.0.0%2F%40quaternion%2Fconj.m;h=5100c2adeb288c5efed18976af3a99f38ae89a04;hb=c880e8788dfc484bf23ce13fa2787f2c6bca4863;hp=0000000000000000000000000000000000000000;hpb=1705066eceaaea976f010f669ce8e972f3734b05;p=CreaPhase.git

diff --git a/octave_packages/quaternion-2.0.0/@quaternion/conj.m b/octave_packages/quaternion-2.0.0/@quaternion/conj.m
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+## Copyright (C) 2010   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} =} conj (@var{q})
+## Return conjugate of a quaternion.
+##
+## @example
+## q = w + x*i + y*j + z*k
+## conj (q) = w - x*i - y*j - z*k
+## @end example
+## @end deftypefn
+
+## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
+## Created: May 2010
+## Version: 0.1
+
+function a = conj (a)
+
+  if (nargin != 1)
+    print_usage ();
+  endif
+
+  a.x = -a.x;
+  a.y = -a.y;
+  a.z = -a.z;
+
+endfunction