f(x) = 10^(x)
b = 1.4 (slider from 0.1 to 15, step 0.1)
g: y = b
A = Intersect(f, g, (0.14612803983355865, 1.400000013395171))
a: x(A)
M: (b, a)
texte1: "Abscisse\ de \ A\ :" + (LaTeX[a]) + ""