🌐EnglishEnglishDeutschEspañolFrançaisItalianoPortuguêsSvenskaРусскийالعربيةفارسی中文日本語EntityQ3198879· pop 9· linked from 66 articlesline elementAlso known as scalar line elementline segment of infinitesimally small lengthAvailable in 9 languagesEspañolРусскийPortuguêsItalianoالعربيةFinnishSvenskaفارسیvia Wikidata sitelinks · CC0ConnectionsspacetimeEntitycoordinate systemEntityCategoriesAffine geometryGeneral relativityRiemannian geometrySpecial relativity