| Function group | Execute on client | Platform(s) |
|---|---|---|
| Trigonometric | YES | All |
acos(number)
Returns the arc cosine of a number in the range 0 to 180 degrees (0 to pi radians if #RAD is true), or returns 0 if the number is not in the range -1 to 1.
Calculate lResult as acos(spr(2)/2)
# returns 45