get opposite radian angle - AS3

Question

hi there,

I am trying to retrieve the opposite radian angle after I have retrieve a radian angle from another calculation. This is using AS3

Answer 1

In psuedo code:

angle = angle + Math.PI;
angle = angle mod (Math.PI * 2)

Answer 2

var oppositeRadianAngle:Number = radianAngle - Math.PI;

this seems to work too :D you can use + as stated before by James