I am not sure when I am moving through to WestNet, but I am guessing that it can be any time soon. I guess the first that I will know is that internet access drops off… Hmm..

I had an interesting maths problem to work on… I was wanting to know when two compass bearings were within 30 degrees of each other. This is actually a harder calculation than you would think… The problem is when one heading is at 350 degrees and the other is at 10 degrees. Normally you would do (10-350) or (350-10) and the answer would be 20 degrees (or -20 degrees). Well, that is what would happen if the maths actually work. But they dont…

The answer, if you want to know if two angles are within 30 degrees is to
Absolut Value ( Angle 1 – Angle 2)
And if this is < 30 or > 330 then the angles are within 30 degrees. You would not believe how much time I worked on that, getting nowhere. I then posted to the OzAPRS mailing list that I started a few years back, and got a reply back very quickly… Now I just need to implement this… Simple….