ASIN
Returns the arc sine of x, that is, the value whose sine is x. Returns NULL if x is not in the range -1 to 1.
Syntax
ASIN(x)
Arguments
| Arguments | Description | 
|---|---|
| x | The angle, in radians. | 
Return Type
A Float64 data type value.
Examples
mysql> SELECT ASIN(0.2);
+--------------------+
| ASIN(0.2)          |
+--------------------+
| 0.2013579207903308 |
+--------------------+
1 row in set (0.01 sec)
mysql> SELECT ASIN(1.1);
+-----------+
| ASIN(1.1) |
+-----------+
|      NULL |
+-----------+
1 row in set (0.01 sec)