SUBTRAÇÃO

Z_1 - Z_2

Z_2

- Z_2

-Z_2

Z_2

A = Intersect(xAxis, yAxis)
c = Circle(A, 5.0)
Z_1 = Point(c)
u = Vector(A, Z_1)
C = Point(u)
d = Circle(C, 4.0)
D = Point(d)
v = Vector(C, D)
a = Line(D, C)
E = Intersect(d, a, 2.0)
w = Vector(C, E)
b = Line(A, w)
F = Point(b)
e = Segment(A, F)
f = Segment(F, E)
z = Vector(A, E)
g = false
i = false
j = true