bar(bar(CMXCIX)CMXCIX)CMXCIX
CMXCIX.999 = CMXCIX
999
In todays notation of Roman numerals they represent: 999
4000 = (IV), 900 = CM, 90 = XC and 9 = IX, so 4999 would be (IV)CMXCIX.
bar(bar(CMXCIX)CMXCIX)CMXCIX
CMXCIX.999 = CMXCIX
999
(xxix)cmxcix
(IX)CMXCIX
In todays notation of Roman numerals they represent: 999
4000 = (IV), 900 = CM, 90 = XC and 9 = IX, so 4999 would be (IV)CMXCIX.
The way we write out Roman numerals today differs in the way that the ancient Romans actually did themselves and they would have probably wrote out the equivalent of 999,999 simply as I(M) which means 1,000,000-1
In today's terms 9999 would be noted as (IX)CMXCIX but the Romans themselves would have probably wrote it out simply as I(X) which reprsents -1+10000 = 9999 Numerals in brackets indicate multiplication by a thousand.
Today we write out 999 in Roman numerals as CMXCIX but the Romans themselves would have probably wrote it out as IM which is the same as DCCCCLXXXXVIIII So: DCCCCLXXXXVIIII minus DCLXVI equals CCCXXXIII (333)
Notwithstanding todays modern conversion of 999 into Roman numerals which is now considered to be CMXCIX inasmuch that the ancient Romans would have probably added together the equivalent of 777 and 999 in either of the following formats:- Abridged format: DCCLXXVII+IM = MDCCLXXVI => 777+(1000-1) = 1776 Elongated format: DCCLXXVII+DCCCCLXXXXVIIII = MDCCLXXVI => 777+999 = 1776 QED
999,999 would be written as (CMXCIX)CMXCIX