Hi guys/gals,

I am trying to figure out how to add and subtract two degrees. I am
speaking about compass/directional degrees (or angles if you prefer).

I need to be able to subtract lets say 45 degrees from a heading/angle
of 020 and arrive at the appropriate result. In this case 335.


Also how can I display the result or format the field to display a
leading "zero" ie 020.

Thanks in advance