/Python/How to calculate approximate distance with latitude and longitude

How to calculate approximate distance with latitude and longitude

from math import cos, sqrt
def qick_distance(Lat1, Long1, Lat2, Long2):
    x = Lat2 - Lat1
    y = (Long2 - Long1) * cos((Lat2 + Lat1)*0.00872664626)  
    return 111.319 * sqrt(x*x + y*y)

Source: stackoverflow.com

How to calculate approximate distance with latitude and longitude

const R = 6371e3; // metres
const φ1 = lat1 * Math.PI/180; // φ, λ in radians
const φ2 = lat2 * Math.PI/180;
const Δφ = (lat2-lat1) * Math.PI/180;
const Δλ = (lon2-lon1) * Math.PI/180;

const a = Math.sin(Δφ/2) * Math.sin(Δφ/2) +
          Math.cos(φ1) * Math.cos(φ2) *
          Math.sin(Δλ/2) * Math.sin(Δλ/2);
const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));

const d = R * c; // in metres

Source: movable-type.co.uk

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