Hindu-Arabic numeral system

The Hindu-Arabic numeral system (also called Algorism) is a positional decimal numeral system documented from the 9th century. The symbols (glyphs) used to represent the system are in principle independent of the system itself. The glyphs in actual use are descended from the Brahmi numerals, and have split into various typographical variants since the Middle Ages. These symbol sets can be divided into three main families: the West Arabic numerals used in the Maghreb and in Europe, the Eastern Arabic numerals used in Egypt and the Middle East, and the Indian numerals used in India.
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