🌐한국어EnglishDeutschEspañolFrançaisItalianoPolskiPortuguêsРусскийالعربيةไทย한국어中文日本語EntityQ780239· pop 17· linked from 135 articles다중지표mathematical notationAvailable in 17 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBulgarianCatalanConnectionsdifferential formEntitynatural numberEntityCategoriesCombinatoricsMathematical notation