50 Trillion Digits of Pi

[Prime95]

Originally Posted by bbb120

all Chinese four digits separated number

I did not know that!

[Uncwilly]

Originally Posted by bbb120

I am not familiar with three digits separated number ,all Chinese four digits separated number , so I make a mistake

The "English" groupings correspond to the named amounts:
1,000 = One Thousand
2,000,000 = Two Million
3,000,000,000 = Three Billion (bi-, meaning 2 in Greek)
4,000,000,000,000 = Four Trillion (tri- = 3)
5,000,000,000,000,000 = Five Quadrillion (quad = 4)
etc.

India has an odd system.

[bbb120]

Originally Posted by Prime95

I did not know that!

chinese
10,000=1万=10 thousand
100,000,000=1亿=100 million

123456789123456789=123_456_789_123_456_789(English)
123456789123456789=12_3456_7891_2345_6789(chinese)
English grouping digits three by three，
but Chinese grouping digits four by four

[a1call]

Billion had two different meanings in English and French Canada:

https://en.m.wikipedia.org/wiki/Billion

[LaurV]

We knew about Chinese system (we used to work in China few years at the end of the last century). Thai system is also odd, they group them by 6 digits. In fact, this, same as in Indian dialects, comes from Sanskrit. In fact, they also "shorten" it in speech, ignoring the "small quantities", for example, you may see 1 506078, but they will say "laan haa", which is textual "million five" (i.e. one million, five hundred something) unless the accuracy is especially required (like accounting, banking, invoices, etc).

[xilman]

Originally Posted by a1call

Billion had two different meanings in English and French Canada:

https://en.m.wikipedia.org/wiki/Billion

Still does in much of Europe where the term "milliard" is still used for 1e9.

[Uncwilly]

Originally Posted by xilman

Still does in much of Europe where the term "milliard" is still used for 1e9.

There is a myriad different number naming and notation schemes.

[storm5510]

Originally Posted by Uncwilly

There is a myriad different number naming and notation schemes.

Just be glad we are not using the Roman Numeral system. What a mess that would be.

[Uncwilly]

Originally Posted by storm5510

Just be glad we are not using the Roman Numeral system. What a mess that would be.

I have problems, but Roman numerals ain't one of them.

[xilman]

Originally Posted by storm5510

Just be glad we are not using the Roman Numeral system. What a mess that would be.

Be thankful for the existence of dozenal and sexagesimal representations.

[Dr Sardonicus]

Originally Posted by Uncwilly

I have <snip attachment link> problems, but Roman numerals ain't one of them.

Hmm, rings a bell.

That girl has problems, bein' heard ain't one of 'em .

-- Ethel Merman, referring to Janis Joplin