x0:U(-2, 2), x1:U(-2,2), x2:U(-2,2)
((((0.7 * x2) - (1.3 * x1)) + (1.1 * x0))+(1.4 * (((0.7 * x1) - (1.3 * x0)) + (1.4 * (0.7 * x0))))) - (0.7 * (0.7 * x0))
