arccos(x)
| Argument | Description |
|---|---|
| x | The angle (in radians) to return the inverse cosine of. |
Returns: Real
Returns the inverse cosine of x, in that if cos(val)=n,
arccos(n)=val, and the resulting number will be between pi and
0.
NOTE: This will only accept a number between -1 and 1
(anything else will throw an error).
val = arccos(0);
This will set val to pi/2.