Math Numeric Functions MySQL Tutorial

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  4. DEGREES(X) returns the argument X, converted from radians to degrees
mysql>
mysql> SELECT DEGREES(PI());
+---------------+
| DEGREES(PI()) |
+---------------+
|           180 |
+---------------+
1 row in set (0.00 sec)
mysql>
mysql> SELECT DEGREES(PI() / 2);
+-------------------+
| DEGREES(PI() / 2) |
+-------------------+
|                90 |
+-------------------+
1 row in set (0.00 sec)
mysql>