Normal Vector

a_{1} = 2.0454005496418652 (slider from -5 to 5)
a_{2} = -3.6390262971910587 (slider from -5 to 5)
a_{3} = -1.214171741745531 (slider from -5 to 5)
A: (a_{1}, a_{2}, a_{3})
a = Vector((0, 0, 0), A)
b_{1} = 2.1782618640599054 (slider from -5 to 5)
b_{2} = 4.151344860826768 (slider from -5 to 5)
b_{3} = 2.618497409668361 (slider from -5 to 5)
B: (b_{1}, b_{2}, b_{3})
b = Vector((0, 0, 0), B)
O: (0, 0, 0)
p = Plane(O, A, B)
u: a ⊗ b
n: (1 / 5 * u)
α = Angle(n, a)
β = Angle(n, b)