Root (operation)
From AoPSWiki
The 
th root of a number 
, denoted by 
, is a common operation on numbers and a partial inverse to exponentiation. (The proper inverse is the logarithm)
Definition
For any (not necessarily real) numbers 
, 
if 
. Note that we generally take only the positive value of 
, if we wish to take both the positive and negative roots, we write 
.
See Also
- Algebra
- Square root, a special form of a root.
