Returns the arc-cosine, in radians, of a numeric expression.

Syntax

ACOS( numeric-expression )

Parameters

Returns

DOUBLE

Remarks

This function converts its argument to DOUBLE, and performs the computation in double-precision floating point.

See also

• ASIN function [Numeric]
• ATAN function [Numeric]
• ATAN2 function [Numeric]
• COS function [Numeric]

Standards and compatibility

Example

The following statement returns the arc-cosine value for 0.52.

SELECT ACOS( 0.52 );