convert to scientific notation

[Randall Lee Reetz]

I can't remember how to use power function "^" to find the nth root  
of a number.  To find the 2ndth root of a number we can use the "sqrt 
()" function.  But to find the nth root????

For instance, lets say I want to convert a number to scientific  
notation (the 10th root of that number)... I used to know how to use  
the power function to do this.  Anyone remember how to do it?

I tried to get the 10th root (scientific notation) of 100  (which  
should = 2) by:     100^(1/10) ... but that isn't it.

Any ideas?  I feel brain dead.

Randall