Zielfunktion A(a) anzeigen

u = 11 (slider from 5 to 15, step 1)
B = Point(xAxis)
A = (0, 0)
a = Segment(A, B)
c = Circle(B, u - a)
b = OrthogonalLine(B, xAxis)
C = Intersect(c, b, 2.0)
D: (0.0, y(C))
Vieleck1, a_1, b_1, c_1, d = Polygon(A, B, C, D)
Flächeninhalt: (x(B), Vieleck1)
f(x) = x * (u - x)
e = false