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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: 𐌠 , 𐌑 , 𐌒 , 𐌣 , and 𐌟 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. Roman abacus - Wikipedia

    en.wikipedia.org/wiki/Roman_abacus

    The Roman abacus was the first portable calculating device for engineers, merchants, and presumably tax collectors. It greatly reduced the time needed to perform the basic operations of arithmetic using Roman numerals. [citation needed] Karl Menninger said:

  4. History of ancient numeral systems - Wikipedia

    en.wikipedia.org/wiki/History_of_ancient_numeral...

    History of mathematics; History of numbers – Used to count, measure, and label; History of writing; Jeton – Coin-like counting token; List of numeral system topics; List of numeral systems; Relationship between mathematics and physics; Number theory – Branch of mathematics; Timeline of mathematics

  5. 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.

  6. Category:Ancient Roman mathematics - Wikipedia

    en.wikipedia.org/wiki/Category:Ancient_Roman...

    Category: Ancient Roman mathematics. 11 languages. ... Roman abacus; Roman numerals This page was last edited on 7 June 2024, at 05:53 (UTC). Text ...

  7. Tally marks - Wikipedia

    en.wikipedia.org/wiki/Tally_marks

    Roman numerals, the Brahmi and Chinese numerals for one through three (δΈ€ 二 δΈ‰), and rod numerals were derived from tally marks, as possibly was the ogham script. [7] Base 1 arithmetic notation system is a unary positional system similar to tally marks. It is rarely used as a practical base for counting due to its difficult readability.

  8. Latin letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Latin_letters_used_in...

    the mass number or nucleon number of an element in chemistry [6] the Helmholtz free energy of a closed thermodynamic system of constant pressure and temperature [7] a vector potential, in electromagnetics it can refer to the magnetic vector potential [8] with a subscript, an alternating group on that many objects; an Abelian group in abstract ...

  9. Liber Abaci - Wikipedia

    en.wikipedia.org/wiki/Liber_Abaci

    The book describes methods of doing calculations without aid of an abacus, and as Ore (1948) confirms, for centuries after its publication the algorismists (followers of the style of calculation demonstrated in Liber Abaci) remained in conflict with the abacists (traditionalists who continued to use the abacus in conjunction with Roman numerals ...