🌐فارسیEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ867707· pop 30· linked from 318 articlesتوابع خاصAlso known as special functionsfunctions which have established names and notations due to their importance in mathematicsAvailable in 29 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةArmenianConnectionsGradshteyn and RyzhikEntitytrigonometric functionEntityCategoriesHistory of mathematicsSpecial functions