In <01bbd5f1$b994c530$262a6282@cln49ae> "Pascal Obry" writes: [...] > Ce ne sont pas des op�rateurs mais des fonctions que tu trouveras dans le > package Ada.Numerics.Elementary_Functions. > > racine carr�e x : Sqrt (x) > racine n i�me : Sqrt (x) / Sqrt (n) I presume "racine n i�me" is "nth root" (cube root, fourth root, etc.). The formula given above, Sqrt (x) / Sqrt (n), is incorrect. The correct formula is x ** 1.0/n (you'll have convert n to the appropriate floating-point type first). -- Keith Thompson (The_Other_Keith) kst@thomsoft.com <*> TeleSoft^H^H^H^H^H^H^H^H Alsys^H^H^H^H^H Thomson Software Products 10251 Vista Sorrento Parkway, Suite 300, San Diego, CA, USA, 92121-2706 FIJAGDWOL