Description Returns the arc cosine of a number.
Syntax ACOS ( number )
| Argument | Description |
|---|---|
| number | The cosine of the angle. The cosine can range from 1 to -1. |
Remarks The resulting angle is returned in radians (from 0 to PI). To convert the resulting radians to degrees, multiply the radians by 180/PI( ).
Examples This function returns 1.05:
ACOS(.5)
This function returns 1.77:
ACOS(-.2)
See Also COS
