위경도로 거리구하기
from math import sin, cos, sqrt, atan2, radians # approximate radius of earth in km R = 6373.0 lat1 = radians(52.2296756) lon1 = radians(21.0122287) lat2 = radians(52.406374) lon2 = radians(16.9251681) dlon = lon2 - lon1 dlat = lat2 - lat1 a = sin(dlat / 2)**2 + cos(lat1) * cos(lat2) * sin(dlon / 2)**2 c = 2 * atan2(sqrt(a), sqrt(1 - a)) distance = R * c print("Result:", distance) print("Should be:", 278.546, "km")