To see the trajectories of the partial expressions, if I assume 3-step period even for the convergent case, where f0=f1=f2
Gottfried
convergent - unfurcated
convergent: trifurcated, but in limit f0=f1=f2
tri-furcation , but this converges if infinite height is assumed
tri-furcation without convergence
Gottfried
convergent - unfurcated
convergent: trifurcated, but in limit f0=f1=f2
tri-furcation , but this converges if infinite height is assumed
tri-furcation without convergence
Gottfried Helms, Kassel

