Ep=Em

Curseur X

Ep(x) = ((x^(4) - x^(3) - (3 * x^(2))) * ℯ^(((-1.25) * x)))
Em = -0.45 (slider from -5 to 5, step 0.05)
v_+(x) = sqrt(Em - Ep(x))
v_-(x) = (-sqrt(Em - Ep(x)))
D: y = Em
Curseur = 3 (slider from -2 to 10, step 0.01)
A: (Curseur, Ep(Curseur))
a = Line((Curseur, 0), A)