Figure 11: For and , we make 200000 iterations and draw the last in the -axis. Except for (b) and (e), the initial conditions are taken to be the extremum of and . (a) and (e) are not attractors because the initial conditions are synchronized; in (a) , and in (e) . These are -limit sets from initial conditions in a set of zero two-dimensional Lebesgue measures. If we change the initial conditions slightly, we obtain the attractors (b) and (f). Finally, (c) and (d) are two different attractors with the same projection in the - and -axis, while for (b) and (f) the projections are different. Attractors (b) and (f) are possible because and have two different attractors consisting of two-periodic transitive intervals (of type (A3)).