[ 7/6 ] [ -7/6 ] [ 5/6 -5/6 ] [ 0 ] -1/6 |-> 1/2 |-> -7/6 1/6 |-> -1/2 |-> 7/6 -2/3 |-> 7/6 2/3 |-> -7/6 f(z) = 3*z^3 - 37/12*z * [ 7/10 ] [ -7/10 ] [ 13/10 -13/10 ] [ 0 ] -3/10 |-> -1/2 |-> -7/10 3/10 |-> 1/2 |-> 7/10 -6/5 |-> 7/10 6/5 |-> -7/10 f(z) = -5/3*z^3 + 109/60*z * TOTAL: 2