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  2. Counting rods - Wikipedia

    en.wikipedia.org/wiki/Counting_rods

    Rod numerals are a positional numeral system made from shapes of counting rods. Positive numbers are written as they are and the negative numbers are written with a slant bar at the last digit. The vertical bar in the horizontal forms 6–9 are drawn shorter to have the same character height.

  3. Chinese numerals - Wikipedia

    en.wikipedia.org/wiki/Chinese_numerals

    In the same way that Roman numerals were standard in ancient and medieval Europe for mathematics and commerce, the Chinese formerly used the rod numerals, which is a positional system. The Suzhou numerals ( simplified Chinese : 苏州花码 ; traditional Chinese : 蘇州花碼 ; pinyin : Sūzhōu huāmǎ ) system is a variation of the Southern ...

  4. Chinese mathematics - Wikipedia

    en.wikipedia.org/wiki/Chinese_mathematics

    Mathematics emerged independently in China by the 11th century BCE. [1] The Chinese independently developed a real number system that includes significantly large and negative numbers, more than one numeral system (binary and decimal), algebra, geometry, number theory and trigonometry.

  5. History of ancient numeral systems - Wikipedia

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

    Within the counting system used with most discrete objects (including animals like sheep), there was a token for one item (units), a different token for ten items (tens), a different token for six tens (sixties), etc. Tokens of different sizes and shapes were used to record higher groups of ten or six in a sexagesimal number system.

  6. Rod calculus - Wikipedia

    en.wikipedia.org/wiki/Rod_calculus

    Two forms of Chinese rod numerals Representation of the number 231 and possible misleading rod placements. Rod numerals is the only numeric system that uses different placement combination of a single symbol to convey any number or fraction in the Decimal System. For numbers in the units place, every vertical rod represent 1.

  7. History of mathematical notation - Wikipedia

    en.wikipedia.org/wiki/History_of_mathematical...

    The numbers 0–9 in Chinese huama (花碼) numerals. The ancient Chinese used numerals that look much like the tally system. [27] Numbers one through four were horizontal lines. Five was an X between two horizontal lines; it looked almost exactly the same as the Roman numeral for ten.

  8. Suzhou numerals - Wikipedia

    en.wikipedia.org/wiki/Suzhou_numerals

    The rod numeral system is a positional numeral system used by the Chinese in mathematics. Suzhou numerals are a variation of the Southern Song rod numerals. Suzhou numerals were used as shorthand in number-intensive areas of commerce such as accounting and bookkeeping. At the same time, standard Chinese numerals were used in formal writing ...

  9. Timeline of numerals and arithmetic - Wikipedia

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

    Alphabetic numeral system – Type of numeral system; Attic numerals – Symbolic number notation used by the ancient Greeks; Australian Aboriginal enumeration – Counting system used by Australian Aboriginals; Counting rods – Small bars used for calculating in ancient East Asia; History of ancient numeral systems – Symbols representing ...