ASIN Returns the arcsine, or inverse sine, of a number. The arcsine is the angle whose sine is number. The returned angle is given in radians in the range -pi/2 to pi/2.
Syntax
ASIN(number)
Parameters
Number – The sine of the angle you want and must be from -1 to 1.
Return Value
Returns the arcsine, or inverse sine, of a number.
Reference Data
https://docs.microsoft.com/en-us/dax/dax-function-reference