How can I calculate azimuth
without importing Geodesic? (or any other kind of lib)
I want to able to have the same below azi1 and azi2 results giving two geolocations as shown.
>>> from geographiclib.geodesic import Geodesic
>>> # The geodesic inverse problem
... Geodesic.WGS84.Inverse(-41.32, 174.81, 40.96, -5.50)
{'lat1': -41.32,
'a12': 179.6197069334283,
's12': 19959679.26735382,
'lat2': 40.96,
'azi2': 18.825195123248392,
'azi1': 161.06766998615882,
'lon1': 174.81,
'lon2': -5.5}
BASICALLY I'M JUST ASKING BASIC IMPLEMENTATION OF AZIMUTH IN PYTHON.