Name

ACOS( )

Synopsis

ACOS(number)

This function returns the arc cosine of a given number. For numbers given that are greater than 1 or less than -1, NULL is returned.

SELECT ACOS(.5), ACOS(1.5);
+----------+-----------+
| ACOS(.5) | ACOS(1.5) |
+----------+-----------+
| 1.047198 |      NULL |
+----------+-----------+

Get MySQL in a Nutshell now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial