asin()
Returns the angle, in radians, whose sine is the specified radian expression. This is also called arcsine.
Syntax
asin(RADIAN_EXPR)
Required Parameter
RADIAN_EXPR
- Radian expression. This function returns
null
when it receives an argument value that is not a number.
Usage
json "{}" | eval asin=asin(0.4997701026431024)
=> 0.5233333333333333 (30 * 3.14 / 180)
json "{}" | eval asin=asin(0.8657598394923444)
=> 1.0466666666666666 (60 * 3.14 / 180)
json "{}" | eval asin=asin(0.9999996829318346)
=> 1.5699999999999876 (90 * 3.14 / 180)
json "{}" | eval asin=asin(0) => 0
json "{}" | eval asin=asin("0") => null