z_1=%v

z_2=%v

z_1 + z_2 = %v

-z_2=%v

z_1 - z_2 = %v

z_1 z_2 = %v

z_1/z_2 = %v

z_1 = (3, 1)
r = Segment((0, 0), z_1)
B1 = (3, 1)
O = Intersect(xAxis, yAxis)
z_2 = (-1, 2)
B2 = (-1, 2)
α = Angle((10, 0), (0, 0), z_1)
β = Angle((10, 0), (0, 0), z_2)
s = Segment((0, 0), z_2)
z_s: z_1 + z_2
v1 = Vector(O, z_1)
v2 = Vector(O, z_2)
v2' = Vector(z_1, z_s)
v1' = Vector(z_2, z_s)
z2': (-z_2)
u2 = Vector(O, z2')
z_r: z_1 - z_2
v1'' = Vector(z2', z_r)
w = Vector(z_1, z_r)
v2d = Vector(O, z_2)
lista: {"Suma", "Resta", "Producto", "Cociente"}
op = SelectedIndex(lista)
z_p: (z_1 * z_2)
γ = Angle((10, 0), (0, 0), z_p)
r_p = Segment((0, 0), z_p)
z_c: z_1 / z_2
δ2 = Angle((10, 0), (0, 0), z_c)
r_c = Segment((0, 0), z_c)
δ1 = Angle((10, 0), (0, 0), z_c)