Numerals in Unicode

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Template:UCS characters Numerals (often called numbers in Unicode) are characters that denote a number. The same Arabic-Indic numerals are used widely in various writing systems throughout the world and all share the same semantics for denoting number, However, the glyphs representing these numerals differ widely from writing system to another. To support the glyph differences, Unicode includes duplicate encodings of these numerals within many of the script blocks. These digits are repeated in 23 separate blocks. Six additional blocks contain the digits again as rich text or legacy software compatibility characters.

Unicode also includes several less common numerals: Roman, counting rod numerals, Cuneiform numerals and ancient Greek numerals.

Numerals invariably involve composition of glyphs as a limited number of characters are composed to make other numerals. For example the sequence 9 - 9 - 0 in Arabic-Indic numerals composes the numeral for nine hundred and ninety (990). In Roman numerals, the same number is expressed by the compose numeral Ⅹↀ or ⅩⅯ.