[ 5/6 5/3 -5/6 -5/3 ] [ 0 ]
f(z) = -6/5*z^3 + 17/6*z
*
[ 5/6 -5/3 -5/6 5/3 ] [ 0 ]
f(z) = 6/5*z^3 - 17/6*z
*
[ 1/2 3/2 -1/2 -3/2 ] [ 0 ]
f(z) = -5/3*z^3 + 41/12*z
*
[ 1/2 -3/2 -1/2 3/2 ] [ 0 ]
f(z) = 5/3*z^3 - 41/12*z
*
[ 1 3/2 -1 -3/2 ] [ 0 ]
f(z) = -26/15*z^3 + 97/30*z
*
[ 1 -3/2 -1 3/2 ] [ 0 ]
f(z) = 26/15*z^3 - 97/30*z
*
[ 1/2 2 -1/2 -2 ] [ 0 ]
f(z) = -17/15*z^3 + 257/60*z
*
[ 1/2 -2 -1/2 2 ] [ 0 ]
f(z) = 17/15*z^3 - 257/60*z
*
TOTAL: 8