Di dieu aya fungsi C ++ pikeun ngitung jarak bunderan ageung antara dua titik di Bumi, ngaitung kurva: ```cpp bumi gandaDistance: ```cpp bumi gandaDistance: ``dL1, lon1, lon2, lon2 ganda) { ganda radius = 3959; // miles double dLat = (lat2 - lat1) * M_PI / 180; dLon = (lon2 - lon1) * M_PI / 180; ganda a = sin: d/2) * sind/2) * sind/2) + cosd (cosd) * M_PI / 180) * cosd2 * M_PI / 180) * sindLon/2) * atan * sindLon / 2); double = 2 * 2sqrt1-a), sqrt1-a); radius balik * c; } `` ` ` `
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