Figure 11
![Figure 11](http://media.springernature.com/full/springer-static/image/art%3A10.1155%2F2009%2F327503/MediaObjects/13637_2008_Article_48_Fig11_HTML.jpg)
Courses of (a) for varying control parameters θ. The system shows periodic behavior for the real value
and converges to a globally stable fixed point for all other values shown. The coordinates of this stable fixed point remain low for
(the courses cannot be distinguished in this plot), and increase with increasing θ for
. This causes a smooth local minimum at
in the error function (Figure 12).