# Use of comma as decimal separator

It seems like an easy question. But I can't find an answer in the internet regarding this matter. What do you mean by "Average nozzle velocity = $50,6 m/s$"? Convert $50,6$ as one in $m/s$.

• Does 50,6 mean $50 + \frac{6}{10}$? Commented Dec 12, 2017 at 4:06
• I don't know too sir. But this is the link, t-iss.com/downloads/datasheets/linethrower.pdf Commented Dec 12, 2017 at 4:14
• @vadim123 yes, it does, at least in Germany; I had a German student once. I was not aware that this usage also occurred in the Netherlands. Commented Dec 12, 2017 at 4:43
• Note that one of the James Bond books written, after the death of Ian Fleming, by a different author, talks extensively about a line throwing tool, used on a ski slope to save someone Commented Dec 12, 2017 at 4:47
• jamesbond.wikia.com/wiki/Schermuly_Pains-Wessex_Speedline Commented Dec 12, 2017 at 4:50

## 1 Answer

$50,6$ does, in fact, mean $50+\frac{6}{10}$; that's just an alternate notation. Using a period to separate decimal places from the rest of the number seems to be common practice only in the US and the UK, from what I've seen and read. Commas seem to be preferred in place of decimal points in most other countries.

The reverse is also true, so what someone from the US or the UK might recognize as "$12,345.67$," someone from France, Germany, the Netherlands, or elsewhere might think of as "$12.345,67$," instead.