--- /dev/null
+## Copyright (C) 2004 Andrew Collier <abcollier@users.sourceforge.net>
+##
+## This program is free software; it 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 file; see the file COPYING. If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} @var{anglout} = deg2rad(@var{anglin})
+##
+## Converts angles input in degrees to the equivalent in radians.
+## @end deftypefn
+
+## Author: Andrew Collier <abcollier@users.sourceforge.net>
+
+function anglout = deg2rad(anglin)
+ anglout = anglin * pi / 180;
+endfunction
+
+## http://www.mathworks.com/access/helpdesk/help/toolbox/map/functionlist.shtml