function value = exp_fun ( n, x )

%*****************************************************************************80
%
%% EXP_FUN evaluates the exponential function.
%
%  Licensing:
%
%    This code is distributed under the GNU LGPL license.
%
%  Modified:
%
%    25 May 2012
%
%  Author:
%
%    John Burkardt
%
%  Parameters:
%
  value = exp ( x );

  return
end
