function value = r8_epsilon ( dummy )

%% R8_EPSILON returns the machine precision for an R8 value.
%
%  Modified:
%
%    22 August 2004
%
%  Author:
%
%    John Burkardt
%
%  Parameters:
%
%    Input, double precision DUMMY, a dummy value.
%
%    Output, double precision VALUE, the machine precision.
%
  value = eps;