A more general suggestion is to use Quick Drop to find items in the Controls and Functions Palettes you don't know. Open Quick Drop and type e.g. root, to narrow down a solution to the issue described above. In this case the forth element in the result list is Y-th Root of X, which you might recognize as the function you need.
Collaborate with other users in our discussion forums
A valid service agreement may be required, and support options vary by country.
Thank you for your feedback.
You changed your response to Not Helpful
You changed your response to Helpful