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Roman Numerals Conversion

Tool to convert from/in Roman numerals: a numbering system with seven letters (I, V, X, L, C, D et M) allowing to write integer numbers and used in Antique Rome.

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Roman Numerals Conversion -

Tag(s) : Numeral System,History

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Roman Numerals Conversion

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Convert from/to Roman Numerals



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Tool to convert from/in Roman numerals: a numbering system with seven letters (I, V, X, L, C, D et M) allowing to write integer numbers and used in Antique Rome.

Answers to Questions

How to read/write with Roman numerals?

Roman numeral system uses 3 rules:

- A letter placed to the right of another is added to the first one.

- A letter (generally a unit) placed to the left of another is subtracted to the first one.

- Letters are grouped from the larger to the smaller except for letters to subtract.

What are the letters to write in Roman Numerals?

Roman numeration uses 7 letters corresponding to 7 numbers:

1 = I

5 = V

10 = X

50 = L

100 = C

500 = D

1000 = M

How does the converter from/to Roman numerals work?

The software detects if a number is written in arabic notation or roman numerals and convert/translate it.

The Roman numerals starts at 1 and ends at 9999, no *correct* translation above will be done. (The software will display the number of thousand then the remainder)

The software is very permissive and allows bad formed roman numerals

How to write zero (0) in Roman numerals?

Romans did not use the zero, they did not consider it as a digit, so they did not write it.

How to write four (4) in Roman numerals?

Four is written IV, however, this software indicated that IIII = 4, unusual, IIII is a variant of IV which is tolerated. It can be found today (typically in watches, or clocks).

How to write a birth date with roman numerals?

There is no specific way to write a birthdate, except to write the number of the day, the month and the year separately.

12 / 06 / 2008 = XII / VI / MMVIII

What is the biggest number in roman numerals?

Numbers above 10000 where not thinkable, if you wish to write a value of hundreds of thousands, one can imagine writing hundreds of M at the beginning of the number.

9999 = MMMMMMMMMCMXCIX (a bit ridiculous)

How to write a negative numbers in roman numerals?

Negative writing is unknown, but adding a - can help to be understood.

How to write a decimal number in roman numerals?

Using decimal numbers is very few documented in history books, however, it is probable that they used fractions.

When Roman Numerals have been invented?

On estimates that roman numerals are born with the Antique Rome, so starting at the VIIth centuryhref b. JC

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Source code

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Questions / Comments


Team dCode read all messages and answer them if you leave an email (not published). It is thanks to you that dCode has the best Roman Numerals Conversion tool. Thank you.


Source : http://www.dcode.fr/roman-numerals
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