🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsTiếng ViệtРусскийالعربيةفارسیहिन्दी한국어中文日本語EntityQ1072174· pop 22· linked from 152 articleslinear systemmathematical model of a system based on the use of a linear operatorAvailable in 22 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsالعربيةहिन्दीArmenianConnectionsDirac delta functionEntitylinear mapEntityCategoriesConcepts in physicsDynamical systemsMathematical modelingSystems theory