| Smalyshev added a comment. |
The calculations are already done with doubles. However, standard arccos formula is not good for small distances even with doubles - the value inside arccos can become >1 due to rounding errors, which produces the NaN. Haversine formula is said to behave better, but I'm not sure what its accuracy limits either.
TASK DETAIL
EMAIL PREFERENCES
To: Smalyshev
Cc: Nikki, Smalyshev, Aklapper, Yurik, GoranSMilovanovic, QZanden, EBjune, merbst, Avner, debt, Gehel, Jonas, FloNight, Xmlizer, Izno, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
Cc: Nikki, Smalyshev, Aklapper, Yurik, GoranSMilovanovic, QZanden, EBjune, merbst, Avner, debt, Gehel, Jonas, FloNight, Xmlizer, Izno, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
_______________________________________________ Wikidata-bugs mailing list Wikidata-bugs@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs
