COT

COT(X)

Devuelve la cotangente de X:

mysql> SELECT COT(12);
+-------------+
| COT(12)     |
+-------------+
| -1.57267341 |
+-------------+
1 row in set (0.00 sec)

mysql> SELECT COT(0);
+--------+
| COT(0) |
+--------+
|   NULL |
+--------+
1 row in set (0.00 sec)