[ -20/7 -15/7 ] 10/7 |-> 30/7 |-> -20/7 f(z) = -49/250*z^3 + 27/10*z + 1 * [ -10/17 12/17 ] -4/17 |-> -6/17 |-> -10/17 f(z) = -289/16*z^3 + 27/4*z + 1 * TOTAL: 2