f(x)=

n = 11 (slider from 1 to 100, step 1)
f(x) = x^(2)
ChampTexte1 = Textfield(f)
b = 1 (slider from -10 to 10, step 0.1)
a = 0 (slider from -10 to 10, step 0.1)
Inf = LowerSum(f, a, b, n)
Sup = UpperSum(f, a, b, n)
c = Integral(f, a, b)
texte1: "\int_{" + (LaTeX[a]) + "}^{" + (LaTeX[b]) + "}{" + (LaTeX[f]) + "}dx=" + (LaTeX[c]) + ""