🌐한국어EnglishBahasa IndonesiaDeutschEspañolItalianoPolskiPortuguêsTiếng ViệtРусскийالعربيةفارسی한국어中文日本語EntityQ11420049· pop 20· linked from 113 articles사차 함수function defined by a polynomial of degree fourAvailable in 19 languagesDeutsch中文日本語العربيةBahasa IndonesiaBanglaBosnianFilipinoFinnishKhmerConnectionspolynomialEntitymaxima and minimaEntityCategoriesElementary algebraEquationsPolynomial functions