@c Copyright (C) 1996, 1997 John W. Eaton
@c This is part of the Octave manual.
@c For copying conditions, see the file gpl.texi.

@node Quaternions, System Utilities, Audio Processing, Top
@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)