function value = r8_add ( x, y )

%*****************************************************************************80
%
%% R8_ADD adds two R8's.
%
%  Discussion:
%
%    An R8 is a double precision real value.
%
%  Licensing:
%
%    This code is distributed under the GNU LGPL license.
%
%  Modified:
%
%    11 August 2010
%
%  Author:
%
%    John Burkardt
%
%  Parameters:
%
%    Input, real X, Y, the numbers to be added.
%
%    Output, real VALUE, the sum of X and Y.
%
  value = x + y;

  return
end
