@c Copyright (C) 1996, 1997, 2000, 2002, 2007 John W. Eaton
@c
@c This file is part of Octave.
@c
@c Octave is free software; you can redistribute it and/or modify it
@c under the terms of the GNU General Public License as published by the
@c Free Software Foundation; either version 3 of the License, or (at
@c your option) any later version.
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@c Octave is distributed in the hope that it will be useful, but WITHOUT
@c ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
@c FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
@c for more details.
@c 
@c You should have received a copy of the GNU General Public License
@c along with Octave; see the file COPYING.  If not, see
@c <http://www.gnu.org/licenses/>.

@node Quaternions
@chapter Quaternions

Quaternions are hypercomplex numbers used to represent spatial
rotations in three dimensions.  This set of routines provides a useful
basis for working with quaternions in Octave.  A tutorial is in the
Octave source, scripts/quaternion/quaternion.ps.

These functions were written by A. S. Hodel, Associate Professor,
Auburn University.

@DOCSTRING(quaternion)

@DOCSTRING(qconj)

@DOCSTRING(qderiv)

@DOCSTRING(qderivmat)

@DOCSTRING(qinv)

@DOCSTRING(qmult)

@DOCSTRING(qtrans)

@DOCSTRING(qtransv)

@DOCSTRING(qtransvmat)

@DOCSTRING(qcoordinate_plot)