Parameters
X—numeric value in the range -1 through 1, inclusive.
Return Values
Calculated arc sine value.
If an error occurs, $procerror contains a negative value that identifies the exact error.
| Value | Error constant | ` |
|---|---|---|
| -1203 | <UPROCERR_RANGE> | Value out of range. |
Use
Allowed in all component types.
Description
The function $asin calculates the arc sine of X, that is, it returns that angle, in radians, whose sine ($sin) is X.
The following example returns the arc sine of the given expression:
vResult = $asin(1 / 2)
