Roman numerals and numbers
|The Roman numerals used today, Roman numerals|
As the “Roman numerals” refers to the number of characters created in ancient Roman times and is still in use for numbers and special-purpose number font,
in the present normal form the Latin letter I (1), V (5) X (10) L (50), C (100) D (500) and M (1000) as numerals for the case of natural numbers are used.
It is an additive number font, with supplementary rule for subtractive case of certain characters, but without place value system and no sign of zero. This is based on a numerical system with the base number of five and ten.
History of Roman numerals
All Roman numerals or Roman numerals were in Central Europe because of their lower aptitude for written arithmetic operations in the period from 12 to 16 Century increasingly in the field of computing and mathematics displaced by the introduced by Arab models written in the decimal system with the arithmetic and the use of zero. Roman numerals remained for other purposes, for the epigraphic or ornamental spelling of numbers, especially for dates, for lists of kings, popes and other carriers of the same name, the band, book, chapter and section count in texts and the numbering of measuring instruments such as the dial of the clock still in use today.
In Roman numerals used characters have a fixed value. There are orders of magnitude than the underlying assets (“One”), the underlying fivefold (“five”). Apart from the subtraction of the value of is independent of the position.
The Roman numerals today?
Today the display with uppercase (capital letters) is common. For page numbering (for example, in the preface, to distinguish from the actual, numbered with Arabic numerals main part of a book), even when alphanumeric classifications are preferably used.
Here are a few good examples of Roman numerals:
How to write 2013 in Roman numerals ?
M (1000) + M (1000) + X (10) + III (3) = MMXIII
How to write 1650 in Roman numerals?
M (1000) + D (500) + C (100) + L (50) = MDCL
Thus, in Roman numerals these simple rules:
The Roman numerals are simply added together from left to right, starting always with the greatest number
135 = CXXXV
100 (C) + 10 (X) + 10 (X) + 10 (X) + 5 (V)
The Roman numerals I, X, C and M may be used a maximum of 3 times side by side, numbers V, L, D only 1x.
3052 = MMMLII
1000 (M) + 1000 (M) + 1000 (M) + 50 (L) + 1 (I) +1 (I)
When a small figure standing in front of a large,
then this will be subtracted from the larger smaller easy.
900 = CM
1000 (M) – 100 (C)