Java Utililty Methods Distance Calculate

final double earthRadius = 3958.75;
final double dLat = Math.toRadians(lat2 - lat1);
final double dLng = Math.toRadians(lng2 - lng1);
final double a = Math.sin(dLat / 2) * Math.sin(dLat / 2) + Math.cos(Math.toRadians(lat1))
        * Math.cos(Math.toRadians(lat2)) * Math.sin(dLng / 2) * Math.sin(dLng / 2);
final double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
final double dist = earthRadius * c;
final int meterConversion = 1609;
...

double earthRadius = 3958.75; 
double dLat = Math.toRadians(lat2 - lat1);
double dLng = Math.toRadians(lng2 - lng1);
double a = Math.sin(dLat / 2) * Math.sin(dLat / 2) + Math.cos(Math.toRadians(lat1))
        * Math.cos(Math.toRadians(lat2)) * Math.sin(dLng / 2) * Math.sin(dLng / 2);
double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
float dist = (float) (earthRadius * c);
return dist;
...

return distanceInMilesBetween(centerLat, centerLon, (float) lat, (float) lon);

double x1 = Math.toRadians(latitude1);
double y1 = Math.toRadians(longitude1);
double x2 = Math.toRadians(latitude2);
double y2 = Math.toRadians(longitude2);
return Math.acos(Math.sin(x1) * Math.sin(x2) + Math.cos(x1) * Math.cos(x2) * Math.cos(y1 - y2));

double dLat = Math.toRadians(lat2 - lat1);
double dLng = Math.toRadians(lng2 - lng1);
double a = Math.sin(dLat / 2) * Math.sin(dLat / 2) + Math.cos(Math.toRadians(lat1))
        * Math.cos(Math.toRadians(lat2)) * Math.sin(dLng / 2) * Math.sin(dLng / 2);
double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
return EARTH_RADIUS * c;

if (s == null || "".equals(s)) {
    return t == null || "".equals(t) ? 0 : t.length();
} else if (t == null || "".equals(t)) {
    return s.length();
int[] v0 = new int[t.length() + 1];
int[] v1 = new int[t.length() + 1];
for (int i = 0; i < v0.length; i++) {
...

return (int) Math
        .ceil((Math.toRadians(Math.abs(east - west)) * Math.cos(Math.toRadians(latitude)) * EARTH_RADIUS));

double res2 = 0;
for (int i = 0; i < m1.length; i++) {
    for (int j = 0; j < m1[i].length; j++) {
        res2 += (m1[i][j] - m2[i][j]) * (m1[i][j] - m2[i][j]);
return Math.sqrt(res2);

double lat1Rad = Math.toRadians(prevLat);
double lat2Rad = Math.toRadians(currentLat);
double deltaLonRad = Math.toRadians(currentLon - prevLon);
return Math.acos(Math.sin(lat1Rad) * Math.sin(lat2Rad)
        + Math.cos(lat1Rad) * Math.cos(lat2Rad) * Math.cos(deltaLonRad)) * EARTH_RADIUS_METER;

if (p1.length != p2.length || p1.length != scratchSpace.length)
    throw new IllegalArgumentException("mismatched dimenions in distanceNd()");
if (p1 == scratchSpace || p2 == scratchSpace)
    throw new IllegalArgumentException("scratch space must be dofferent from inputs");
if (p1.length == 0)
    return 0;
for (int i = 0; i < p1.length; i++) {
    scratchSpace[i] = Math.abs(p2[i] - p1[i]);
...