A Triparametric Family of Optimal Fourth-Order Multiple-Root Finders and Their Dynamics

Figure 8

(a) Kan, (b) Sol, (c) Zhou, (d) , (e) , (f) , (g) , (h) , and (i) , for the roots of the polynomial .

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)