f(x) = 1 / 32 * x^(4) - 1 / 12 * x^(3) - 11 / 16 * x^(2) + 3 / 2 * x + 2
h = 2.4 (slider from 0 to 5, step 0.1)
a = -1.8 (slider from -5 to 5, step 0.1)
A: (a, f(a))
M: (a + h, f(a + h))
K: (a + h, f(a))
b = Segment(A, K)
c = Segment(K, M)
e = Tangent(A, f)
texte1: "\text{Pente : } \frac{c}{b}=\frac{" + (LaTeX[c]) + "}{" + (LaTeX[b]) + "}=" + (LaTeX[c / b]) + "\\"
texte2: "Pente de la tangente : " + (Slope[e]) + ""
d = Segment(M, A)