 \vec{ u } 

 \vec{ v } 

O = Intersect(xAxis, yAxis)
i = (0, 1)
A = (1, 0)
B = (0, 1)
e = 2.718281828459045
u = Vector(O, A)
v = Vector(O, B)
θ = 6.283185307179586 (slider from 0 to 6.283185307179586, step 0.01)
z: e^(i * θ)
M: z
P: 1 + z
r = 1.7 (slider from 0 to 5, step 0.1)
M': r * z
S: 1 + z + z^(2)