Eastern Arabic numerals the medieval-era Iranian mathematician and engineer Khwarazmi, whose name was Latinized as "Algoritmi". These numbers are known as ("Indian numbers") in Arabic. They are sometimes also called "Indic numerals" in English. However, that is sometimes discouraged as it can lead to confusion with Indian numerals, used in Brahmic scripts of India. Each numeral in the Persian variant has a different Unicode point even if it looks identical to the Eastern Arabic numeral counterpart. However the variants used with Urdu, Sindhi, and other South Asian languages are not encoded separately from the Persian variants. See U+0660 through U+0669 and U+06F0 through
Roman numerals Capital or small capital Roman numerals are widely used in Romance languages to denote , e.g. the French ' and the Spanish ' mean "18th century". Slavic languages in and adjacent to Russia similarly favour Roman numerals (). On the other hand, in Slavic languages in Central Europe, like most Germanic languages, one writes "18." (with a period) before the local word for "century". Mixed Roman and Arabic numerals are sometimes used in numeric representations of dates (especially in formal letters and official documents, but also on tombstones). The is written in Roman numerals, while the day is in Arabic