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2. Positional notation - Wikipedia

   en.wikipedia.org/wiki/Positional_notation

   Positional notation, also known as place-value notation, positional numeral system, ... A digit's value is the digit multiplied by the value of its place.

3. Babylonian cuneiform numerals - Wikipedia

   en.wikipedia.org/wiki/Babylonian_cuneiform_numerals

   The Babylonian system is credited as being the first known positional numeral system, in which the value of a particular digit depends both on the digit itself and its position within the number. This was an extremely important development because non-place-value systems require unique symbols to represent each power of a base (ten, one hundred ...

4. Hindu–Arabic numeral system - Wikipedia

   en.wikipedia.org/wiki/Hindu–Arabic_numeral_system

   The Hindu–Arabic system is designed for positional notation in a decimal system. In a more developed form, positional notation also uses a decimal marker (at first a mark over the ones digit but now more commonly a decimal point or a decimal comma which separates the ones place from the tenths place), and also a symbol for "these digits recur ad infinitum".

5. List of numeral systems - Wikipedia

   en.wikipedia.org/wiki/List_of_numeral_systems

   "A base is a natural number B whose powers (B multiplied by itself some number of times) are specially designated within a numerical system." [1]: 38 The term is not equivalent to radix, as it applies to all numerical notation systems (not just positional ones with a radix) and most systems of spoken numbers. [1]

6. History of the Hindu–Arabic numeral system - Wikipedia

   en.wikipedia.org/wiki/History_of_the_Hindu...

   The Hindu–Arabic numeral system is a decimal place-value numeral system that uses a zero glyph as in "205". [1]Its glyphs are descended from the Indian Brahmi numerals.The full system emerged by the 8th to 9th centuries, and is first described outside India in Al-Khwarizmi's On the Calculation with Hindu Numerals (ca. 825), and second Al-Kindi's four-volume work On the Use of the Indian ...

7. Babylonian mathematics - Wikipedia

   en.wikipedia.org/wiki/Babylonian_mathematics

   The Babylonian system of mathematics was a sexagesimal (base 60) numeral system. From this we derive the modern-day usage of 60 seconds in a minute, 60 minutes in an hour, and 360 degrees in a circle. [8] The Babylonians were able to make great advances in mathematics for two reasons.