🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaРусскийالعربيةفارسی한국어中文日本語EntityQ505735· pop 21· linked from 239 articlesLagrangianAlso known as Lagrange densityfunctional of dynamical variables whose variation yields the equations of motion in Lagrangian mechanicsAvailable in 20 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsالعربيةAlbanianArmenianConnectionsgeodesic curveEntityMinkowski spacetimeEntityCategoriesCalculus of variationsClassical field theoryMathematical physicsQuantum field theory