g(x) =

f(x) = c \cdot g(a \cdot  x + b) + d

g(x) = (1 / 3 * x^(3)) - x^(2)
a = 2 (slider from -5 to 5)
b = 1 (slider from -5 to 5)
c = 0.5 (slider from -5 to 5)
d = 2 (slider from -5 to 5)
f(x) = (c * g((a * x) + b)) + d
Eingabefeld1 = Textfield(g)