🌐EnglishEnglishDeutschEspañolFrançaisNederlandsSvenskaРусскийالعربية한국어中文日本語EntityQ382375· pop 12· linked from 14 articlesmonkey saddlemathematical surfaceAvailable in 12 languagesEspañolFrançaisDeutsch中文日本語РусскийHebrewNederlandsRomanianSlovenianSvenskaConnectionssaddle pointEntitymathematicsEntityCategoriesAlgebraic surfacesMultivariable calculus