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2. Positional notation - Wikipedia

   en.wikipedia.org/wiki/Positional_notation

   Positional notation (or place-value notation, or positional numeral system) usually denotes the extension to any base of the Hindu–Arabic numeral system (or decimal system ). More generally, a positional system is a numeral system in which the contribution of a digit to the value of a number is the value of the digit multiplied by a factor ...

3. Babylonian mathematics - Wikipedia

   en.wikipedia.org/wiki/Babylonian_mathematics

   Babylonian mathematics is a range of numeric and more advanced mathematical practices in the ancient Near East, written in cuneiform script. Study has historically focused on the Old Babylonian period in the early second millennium BC due to the wealth of data available.

4. Maya numerals - Wikipedia

   en.wikipedia.org/wiki/Maya_numerals

   The Mayan numeral system was the system to represent numbers and calendar dates in the Maya civilization. It was a vigesimal (base-20) positional numeral system. The numerals are made up of three symbols: zero (a shell), [citation needed] one (a dot) and five (a bar). For example, thirteen is written as three dots in a horizontal row above two ...

5. Babylonian cuneiform numerals - Wikipedia

   en.wikipedia.org/wiki/Babylonian_cuneiform_numerals

   A space was left to indicate a place without value, similar to the modern-day zero. Babylonians later devised a sign to represent this empty place. They lacked a symbol to serve the function of radix point, so the place of the units had to be inferred from context : could have represented 23 or 23×60 or 23×60×60 or 23/60, etc.

6. Table of bases - Wikipedia

   en.wikipedia.org/wiki/Table_of_bases

   "Base" (or "radix") is a term used in discussions of numeral systems which use place-value notation for representing numbers. Base 10 is in bold . All 10s are in italic .

7. Sign-value notation - Wikipedia

   en.wikipedia.org/wiki/Sign-value_notation

   A sign-value notation represents numbers using a sequence of numerals which each represent a distinct quantity, regardless of their position in the sequence. Sign-value notations are typically additive, subtractive, or multiplicative depending on their conventions for grouping signs together to collectively represent numbers. [1]