FAQ
If your questions aren’t covered in the FAQ, please contact me. Many 3 Numbers features and UI are demonstrated in the movie, so you may find watching it helpful.
3 Numbers Frequently Asked Questions:
1. Localization
2. Currency converter
3. Units converter
4. Tip calculator and condensed guide
5. General
1. Localization
Q. Which languages does 3 Numbers support?
A: 3 Numbers is currently only in English, but supports local numerical display for decimal separators (e.g., if you are in Germany, 3 Numbers will show a comma instead of a period to separate decimal places). Language translation is a high priority for future updates of 3 Numbers.
2. Currency converter
Q: Which currencies are in the currency converter?
A: The current supported currencies are:
• Australian Dollar
• Brazilian Real
• British Pound
• Bulgarian Lev
• Canadian Dollar
• Chinese Yuan
• Croatian Kuna
• Czech Koruna
• Danish Krone
• Estonian Kroon
• Euro
• Hong Kong Dollar
• Hungarian Forint
• Indian Rupee
• Indonesian Rupiah
• Japanese Yen
• Latvian Lats
• Lithuanian Litas
• Malaysian Ringgit
• Mexican Peso
• New Zealand Dollar
• Norwegian Krone
• Phillipine Peso
• Romanian Leu
• Russian Ruble
• Singapore Dollar
• South African Rand
• South Korean Won
• Swedish Krona
• Swiss Franc
• Thai Bhat
• Turkish Lira
• US Dollar
Q: I’d like to be able to convert a currency that you don’t currently offer!
A: Just let me know and I will look into what would be involved in adding it to future updates.
Q: Where do the currency rates come from, and how often are they refreshed?
A: The currency rates come from the European Central Bank and other national central banks. These banks publish their rates once a day in the middle of the day (so there’s no reason to press the “Rates” button in 3 Numbers more than once in a 24-hour period). There are currency rate sources which update more frequently, but those are market trading rates for the currencies, while the banks (for instance, your credit card bank or a bank exchanging your currency) use the major central bank rates to set their own rates for consumers. Consequently, there is no advantage to using the market trading rates unless you are trading currency on the bourses, since none of the ask and bid rates for currencies throughout the day end up reflected in the bank rate after trading has ended — only the last ones. If you would like the feature of getting market trading rates for currency, please get in touch!
3. Units converter
Q: There is a useful unit or conversion type that 3 Numbers doesn’t offer.
A: Please get in touch and let me know about it.
4. Tip calculator and condensed guide
Q: I’ve noticed that the rounding function on the tip splitter tends to round up more frequently than it rounds down. Is this a mistake?
A: Good eye! This was an intentional decision. When a number is rounded in the tip splitter and there are a number of people splitting the tip, there is either the possibility of each person paying a bit too much, or the server receiving too little, which can become quite a bit too little when multiplied by the amount of people splitting the tip. Losing $6 of a tip on a table of 12 in a place with $5 entrees would not be enjoyable. The risk of paying too much is always shared between at least two people on the bill-paying side, but the risk of receiving too little is always borne solely by the server. So, the tip splitter rounding function has a “fairness filter”: it rounds down for values ending with .25 or less, and rounds up for values ending with .26 or more, so that it is more likely to overtip than undertip.
Q: Where did the information for the tipping guide come from?
A: Some of it comes from first-hand experience, but most of it comes from having read as many sources as were available and thinking it over to see what seemed like standard practice. If you find errors or have more info, I would be delighted to hear from you and will incorporate corrections to the guide if they are verifiable.
Q: A few of the countries in the tip guide are probably not doing a lot of restaurant business at the moment.
A: I hope they will be soon, and don’t feel qualified to exclude them. Inclusion in the tip guide shouldn’t be read as a endorsement that a country is a good place to plan a vacation, though. Check your local laws and travel advisories for that!
5. General
Q: I found a mistake and/or bug!
A: I’m awfully sorry about that! Please let me know so I can fix it.
Q: I have something on my mind and it isn’t covered by this FAQ.
A: If I can help, get in touch!
