nmea_distance_ellipsoid
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nmea_distance_ellipsoid() gives an incorrect result for this input:
origin: lat=-34.626348°, lon=-58.385799°
destination: lat=35.659933°, lon=139.725321°
The function outputs 1642958.869 m, when the real distance is closer to 1.8e+7 m. The result is in error of over 1000%!
Note that I wrote the coordinates in degrees for convenience; I'm passing these same coordinates, but in radians, so it's not a problem with units.
Project was forked to https://github.com/ahr-project/nmealib because it was not active here.
Please file the issue there.