MarkLogic 9 Product Documentationmath:acos
math:acos( $x as xs:double ) as xs:double
Summary
Returns the arc cosine of x, in radians, in the range from 0 to pi (inclusive).
| Parameters | |
|---|---|
| x | The fraction to be evaluated. Must be in the range of -1 to +1 (inclusive). |
Example
math:acos(.5) => 1.0471975511966