asin function

Input type	Output type
float complex	float complex

This function calculates the arcsine of the argument and returns the result. If the argument is of type int, it is first converted to float by the compiler.

Examples:

asin(1)       ; 1.5708
asin(1.0)     ; 1.5708
asin((1, 0))  ; (1.5708, 0)

Notes

asin(sin(x)) is equal to x if x is within the range -pi..pi.
The argument should not be outside the range -1..1. Otherwise this function will return an invalid value. See Invalid operations.