ASIN(A)
Returns the inverse sine (arcsin) of A (result is in Radians)
Float ASIN(Float A)
A - Float value. If it is not of type float, it is implicitly converted to type float.
Inverse sine (arcsin) of A (result is in Radians)
> PRINT RAD_TO_DEG(ASIN(0))
0.000000
> PRINT RAD_TO_DEG(ASIN(0.5))
30.000000
> PRINT RAD_TO_DEG(ASIN(1))
90.000000