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  2. Roman numerals - Wikipedia

    en.wikipedia.org/wiki/Roman_numerals

    The Roman numerals, in particular, are directly derived from the Etruscan number symbols: ๐Œ  , ๐Œก , ๐Œข , ๐Œฃ , and ๐ŒŸ for 1, 5, 10, 50, and 100 (they had more symbols for larger numbers, but it is unknown which symbol represents which number). As in the basic Roman system, the Etruscans wrote the symbols that added to the desired ...

  3. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    Such method is 6.7% more efficient than MIME-64 which encodes a 24 bit number into 4 printable characters. 89: Largest base for which all left-truncatable primes are known. 90: Nonagesimal: Related to Goormaghtigh conjecture for the generalized repunit numbers (111 in base 90 = 1111111111111 in base 2). 95: Number of printable ASCII characters ...

  4. Latin numerals - Wikipedia

    en.wikipedia.org/wiki/Latin_Numerals

    The Latin numerals are the words used to denote numbers within the Latin language. They are essentially based on their Proto-Indo-European ancestors, and the Latin cardinal numbers are largely sustained in the Romance languages. In Antiquity and during the Middle Ages they were usually represented by Roman numerals in writing.

  5. Positional notation - Wikipedia

    en.wikipedia.org/wiki/Positional_notation

    Another common way of expressing the base is writing it as a decimal subscript after the number that is being represented (this notation is used in this article). 1111011 2 implies that the number 1111011 is a base-2 number, equal to 123 10 (a decimal notation representation), 173 8 and 7B 16 (hexadecimal).

  6. Alphabetic numeral system - Wikipedia

    en.wikipedia.org/wiki/Alphabetic_numeral_system

    Greek numerals in a c. 1100 Byzantine manuscript of Hero of Alexandria's Metrika. The first line contains the number "อตθฯกฯŸฯ› δ´ ฯ›´", i.e. "9996 + 1 ⁄ 4 + 1 ⁄ 6". It features unit fractions and each of the special numeral symbols sampi (ฯก), koppa (ฯŸ), and stigma (ฯ›) in their minuscule forms. Unit fractions were a method to express ...

  7. Roman numeral analysis - Wikipedia

    en.wikipedia.org/wiki/Roman_numeral_analysis

    An upper case numeral that is not followed by a symbol is understood as a major chord. The use of Roman numerals enables the rhythm section performers to play the song in any key requested by the bandleader or lead singer. The accompaniment performers translate the Roman numerals to the specific chords that would be used in a given key.

  8. Romanian numbers - Wikipedia

    en.wikipedia.org/wiki/Romanian_numbers

    As seen above, ordinal numbers are often written using Roman numerals, especially in this reverse order case. The ending specific to the ordinal numbers (-lea, -a) must be preserved and connected to the Roman numeral with a hyphen. Examples: secolul al XIX-lea "19th century"; clasa a V-a "5th grade";

  9. Latin alphabet - Wikipedia

    en.wikipedia.org/wiki/Latin_alphabet

    New Roman cursive script, also known as minuscule cursive, was in use from the 3rd century to the 7th century, and uses letter forms that are more recognizable to modern eyes; a , b , d , and e had taken a more familiar shape, and the other letters were proportionate to each other.