Verschiebung in y-Richtung:

\mbox{neue Funktion: }f(x)= x^2+v_y

v_y = 3 (slider from -3 to 5, step 0.25)
p(x) = x^(2.0)
A = (1, 1)
B: (1.0, 1.0 + v_y)
E = (1, 0)
v = Vector(E, A)
f(x) = v_y + x^(2.0)
D = (0.5, 0.25)
C: (0.5, v_y + 0.5^(2.0))
u = Vector(A, B)