Useful Spatial formulae

[SeanAdams]

In working through challenge 77 it became apparent that here are a few useful formulae that would help with work like this:

OffsetFromPosition

Input: Point; Bearing; Distance; Units

Output: New point

Degrees to DMS:

Input: Degrees as floating point

Output: string with Degrees; minutes & Seconds

DMS to Degrees:

Inverse of the above

[TheOC]

Excellent idea - New formulas are always a good thing.