Dim str As Double str = Math.Pow(-8, 1 / 3)
Dim Valeur As Double = -8 Dim Resultat As Double Resultat = Math.Pow(Math.Abs(Valeur), (1 / 3)) * Math.Sign(Valeur)
Dim Valeur As Double = -8 Dim Resultat As Double Resultat = Math.Pow(Math.Abs(Valeur), 2) * Math.Sign(Valeur)