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  2. Timeline of mathematics - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_mathematics

    This is a timeline of pure and applied mathematics history.It is divided here into three stages, corresponding to stages in the development of mathematical notation: a "rhetorical" stage in which calculations are described purely by words, a "syncopated" stage in which quantities and common algebraic operations are beginning to be represented by symbolic abbreviations, and finally a "symbolic ...

  3. Timeline of numerals and arithmetic - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_numerals_and...

    c. 3100 BC — Egypt, earliest known decimal system allows indefinite counting by way of introducing new symbols, . [ citation needed ] c. 2800 BC — Indus Valley civilization on the Indian subcontinent , earliest use of decimal ratios in a uniform system of ancient weights and measures , the smallest unit of measurement used is 1.704 ...

  4. Counting - Wikipedia

    en.wikipedia.org/wiki/Counting

    Number blocks, which can be used for counting. Counting is the process of determining the number of elements of a finite set of objects; that is, determining the size of a set. . The traditional way of counting consists of continually increasing a (mental or spoken) counter by a unit for every element of the set, in some order, while marking (or displacing) those elements to avoid visiting the ...

  5. Timeline of algebra - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_algebra

    The following is a timeline of key developments of algebra: Year ... x 3, .. and 1/x, 1/x 2, 1/x 3, .. and gives rules for the products of any two of these. ...

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  7. List of decades, centuries, and millennia - Wikipedia

    en.wikipedia.org/wiki/List_of_decades,_centuries...

    Timelines of world history; List of timelines; Chronology; See calendar and list of calendars for other groupings of years. See history, history by period, and periodization for different organizations of historical events. For earlier time periods, see Timeline of the Big Bang, Geologic time scale, Timeline of evolution, and Logarithmic timeline.

  8. Penney's game - Wikipedia

    en.wikipedia.org/wiki/Penney's_game

    the second player must choose (not-2)-1-2 where (not-2) is the opposite of the second choice of the first player. An intuitive explanation for this result is that in any case that the sequence is not immediately the first player's choice, the chances for the first player getting their sequence-beginning, the opening two choices, are usually the ...

  9. History of ancient numeral systems - Wikipedia

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

    As understood through analyses of early proto-cuneiform notations from the city of Uruk, there were more than a dozen different counting systems, [18] including a general system for counting most discrete objects (such as animals, tools, and people) and specialized systems for counting cheese and grain products, volumes of grain (including ...

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