In the previous page (hun: 2D dynamic) displayed images in which we can appreciate hyperbolas, but when the iterations number increases a square figure appears inscribed in them.
The inscribed figure in the hyperbolas it becomes more noticeable for larger iterations, this is because ht real scator metric is used. In hun: 2D dynamic section, the necessary condition to observe a fractal behavior was mentioned, in fact according with this condition the previous images aren't fractals. The confined condition is $f{}_{0}^{2}-f{}_{1}^{2}\leq\varepsilon$ (hyperbola's equation) since that the presented sections are localed at the origin of the hyper-axis "y", the images are formed by the points that have a low bailout because it can't escape from confinement. The points that can escape have a high bailout and the previous condition don't apply for them, this can be observe increase the iterations number in the quadratic mapping.