A = (6.140000000000001, 2.24)
B = (1, 4)
O = Intersect(xAxis, yAxis)
u = Vector(O, A)
v = Vector(O, B)
B' = Mirror(B, O)
opposto_v = Vector(O, B')
a = Line(B', u)
b = Line(A, opposto_v)
C = Intersect(a, b)
differenza = Vector(O, C)
w = Vector(A, C)
D = Point(w)