math:asin
math:asin( $x as xs:double ) as xs:double
Summary
Returns the arc sine of x, in radians, in the range from -pi/2 to +pi/2 (inclusive).
| Parameters | |
|---|---|
| x | The fraction to be evaluated. Must be in the range of -1 to +1 (inclusive). |
Example
math:asin(.5) => 0.523598775598299