Simple Maths Going Wrong

[aratti]

Darell, I think that the problem given in post one still remain even with adding 1/10 of the variation (with your smooting system) because the variation are so big (1 to 255) that will making swinging also your reading if not filtered.

As far this new release of PBP 2.6 is concerned can you please clearify this trigonometric manipulation:

Wind = (C-127) ATN (S-127) = cos(a) (no math sign ?) ATN sin(a)

I know that tan(a) = sin(a)/cos(a) so (a) = atn (sin(a)/cos(a))

Is this the way that the new PBP use to extract the angle?

Thank you for your help in understanding.

Al.