Geodesic math toolbox for DeepSeek Harness (dsh)

Key features

• geo_distance — great-circle distance (haversine) between two points, with initial/final bearings and the 16-wind compass direction
• geo_area windingthe reported area is the region to the LEFT of the directed edges.
• results in km, m, mi, or nmi
• geo_bearing — initial & final great-circle bearings plus the great-circle midpoint of two points
• coord_parse — parse and validate coordinate strings (decimal, DMS, suffixes, pairs) and convert them to decimal degrees + formatted DMS