I need an idiot's guide on how to calculate ArcTan(x,y), can somebody please help?
I have a working example (below) but have no idea how it works:
α = arctan(sin(12.0321°) * cos(23.45°), cos(12.0321°)) = 11.0639°
Incidentally, in order to calculate sin and cos (in VB Code) I have to convert the degrees to radians first - will this mess up the output or can I just convert it back into degrees again?
Thanks for looking,