[ -1 4/3 ] 
0 |-> 1 |-> 2/3 |-> 4/3
-1/3 |-> 2/3
-2/3 |-> 2/3
1/3 |-> 4/3
f(z) = -3/2*z^3 + 7/6*z + 1
*
TOTAL: 1