Z = Intersect(xAxis, yAxis)
c = Circle(Z, 5)
B = Point(c)
a = Tangent(B, c)
A = Point(a)
v_1 = Vector(B, A)
r = Segment(Z, B)
C = Point(c)
b_1 = Tangent(C, c)
abstandBA = Distance(B, A)
TextBA: "\overline{" + (Name[B]) + (Name[A]) + "} \, = \, " + abstandBA
d = Circle(C, abstandBA)
D, E = Intersect(d, b_1)
v_2 = Vector(C, E)
e = Segment(Z, C)
φ = Angle(C, Z, B)
f = AngularBisector(C, Z, B)
deltax = CircleArc(Z, C, B)
Sehne = Segment(B, C)