a = 0.4 (slider from -2 to 2, step 0.01)
f(x) = a * x^(2.0)
e = 0.9 (slider from -5 to 5, step 0.1)
g(x) = x^(2.0) + e
d = 2.2 (slider from -5 to 5, step 0.1)
h(x) = (x - d)^(2.0)
p(x) = x^(2.0)