[ 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