g(x) = 1.0 / x^(2.0)
i(x) = 1.0 / (2.0 * x^(2.0))
a = 1.4 (slider from -8 to 8, step 0.1)
j(x) = 1.0 / (a * x^(2.0))
b = 5 (slider from -5 to 5, step 0.1)
f(x) = 1.0 / (x - b)^(2.0)
c: x = b