a = 1 (slider from -5 to 5, step 0.1)
s = 2.2 (slider from -5 to 5, step 0.1)
t = 0 (slider from -5 to 5, step 0.1)
g(x) = x^(2.0)
f(x) = a * (x - s)^(2.0) + t
S_f: (s, f(s))
S_g = (0, 0)