LlAcos

De DigiWiki.

// Touch the object with this script in it to see the arccosine of random numbers!
default
{
    touch_start(integer num)
    {
        float r = llFrand(2) - 1.0;
        llOwnerSay("The arccosine of " + (string)r + " is " + (string)llAcos(r));
    }
}