M = Intersect(xAxis, yAxis)
A = Point(xAxis)
a = OrthogonalLine(A, xAxis)
c = Circle(A, M)
B_1 = Intersect(c, a, 2.0)
b = OrthogonalLine(B_1, a)
C = Intersect(b, yAxis)
M_2 = Midpoint(C, M)
M_1 = Midpoint(A, B_1)
F = Midpoint(M_1, M_2)
d = CircleArc(M, A, C)
e = CircleArc(M_2, F, C)
f = CircleArc(M_1, F, A)
Q = Point(e)
r_2 = Segment(M_2, Q)
P = Point(f)
r_1 = Segment(M_1, P)
B = Point(d)
r = Segment(M, B)
D = Intersect(d, e, 1.0)
g = Segment(D, M)
h = Segment(M, A)
i = Segment(A, M_1)
j = Segment(M_1, M_2)
T1: "Umfang u = " + (r * 3.141592653589793 / 2.0 + r_1 * 3.141592653589793) + "
Flächeninhalt A = " + (r * r * 3.141592653589793 / 4.0 - 2.0 * r_1 * r_1)