Math opposite sign function? [closed]

Question

Does such function exist? I created my own but would like to use an official one:

private function opposite(number:Number):Number {     if (number < 0)     {         number = Math.abs(number);     }     else     {         number = -(number);     }     return number; } 

So, -5 becomes 5 and 3 becomes -3.

Edit: Forgive me for being stupid. I'm human. :)

Answer 1

yes it does...

return num*-1; 

or simply

return -num;