MySQL Tutorial/Math Numeric Functions/POW
POW(X,Y), POWER(X,Y) returns the value of X raised to the power of Y.
mysql>
mysql> SELECT POW(2,2);
+----------+
| POW(2,2) |
+----------+
| 4 |
+----------+
1 row in set (0.02 sec)
mysql>
mysql> SELECT POW(2,-2);
+-----------+
| POW(2,-2) |
+-----------+
| 0.25 |
+-----------+
1 row in set (0.00 sec)
mysql>