Spur löschen

a = -4 (slider from -4 to 4, step 0.25)
f(x) = (x * ((3 / 4 * x) - (3 / 2 * a))) + a^(2)
S, B = Extremum(f)
g(x, k) = k^(2) + (3 / 4 * x^(2)) - ((3 / 2 * k) * x)
C = TurningPoint(f)
f1(x) = f'(x)