--- a
+++ b/inst/@gf/le.m
@@ -0,0 +1,28 @@
+## Copyright (C) 2011 David Bateman
+##
+## 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 2 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} {} le (@var{a}, @var{b})
+## Less than or equal to operator for Galois arrays.
+## @end deftypefn
+
+function y = le (a, b)
+  [a, b] = promote_and_check (a, b);
+  y = a._x <= b._x;
+endfunction
+
+%!assert(gf(1) <= gf(1), true)
+%!assert(gf(0) <= gf(1), true)
+%!assert(gf(1) <= gf(0), false)