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Example

Return the arc cosine of a number:

SELECT ACOS(0.25);

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);

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