You can find cube roots, fourth roots, etc. in the following way. Put the HP calculator in Math mode with Menu Applications Math. This will expose the LN, e^x, LOG, and 10^x functions. To take the 5th root of a number, for example, all you have to do is divide the LN of the number by 5 and then do the e^x function. This would work exactly the same with the LOG and 10^x functions. A simpler way is to realize that the cube root of a number is simply the number raised to the "one-third" power. That is the cube root of 27 is 27^(1/3). If you're using RPN, the keystrokes would be 27 Enter, 1 Enter, 3 /, ^. The answer is 3.00. Likewise the fourth root of a number is Number^(1/4) and so on.
Stan Dobrowski--76711,2302