--- /dev/null
+## Copyright (C) 2006-2012 John W. Eaton
+##
+## This file is part of Octave.
+##
+## Octave 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.
+##
+## Octave 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 Octave; see the file COPYING. If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @defvr {Automatic Variable} ans
+## The most recently computed result that was not
+## explicitly assigned to a variable. For example, after the expression
+##
+## @example
+## 3^2 + 4^2
+## @end example
+##
+## @noindent
+## is evaluated, the value returned by @code{ans} is 25.
+## @end defvr
+
+## Mark file as being tested. No real test needed for a documentation .m file
+%!assert (1)
+