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MySQL ACOS() Function

❮ MySQL Functions

Example

Return the arc cosine of a number:

SELECT ACOS(0.25);
Try it Yourself »

Definition and Usage

The ACOS() function returns the arc cosine of a number.

The specified number must be between -1 to 1, otherwise this function returns NULL.

Syntax

ACOS(number)

Parameter Values

Parameter Description
number Required. A numeric value

Technical Details

Works in: From MySQL 4.0

More Examples

Example

Return the arc cosine of a number:

SELECT ACOS(-0.8);
Try it Yourself »

❮ MySQL Functions