🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsSvenskaالعربيةفارسیไทย中文日本語EntityQ186090· pop 14· linked from 63 articlestime-invariant systemAlso known as time invariancemathematical modelAvailable in 14 languagesEspañolFrançaisDeutsch中文日本語ItalianoالعربيةCatalanNederlandsRomanianSvenskaConnectionscommutative propertyEntitylinear time-invariant systemEntityCategoriesControl theorySignal processing