Arcsin

The inverse sine function

fun arcsin(number)

Parameters

• number: A dimensionless number value

Discussion

arcsin is the inverse of sin so if arcsin(number) == x then sin(x) == number. The returned number is in terms of radians:

arcsin(0)
arcsin(.5)

0 rad
0.52 rad

arcsin is valid where -1 <= number <= 1