Outdated Version
You are viewing an older version of this section. View current production version.
ACOS
Returns the arc cosine of x in radians, or NULL if x is not in the range [-1, 1].
Syntax
ACOS (x)
Arguments
- x: the argument
Return Type
Float or double. NULL if x is NULL or invalid.
Examples
select acos(1);
+---------+
| acos(1) |
+---------+
| 0 |
+---------+
