"Engineering practice makes a distinction between ""mathematical models"" and ""physical models""; the cost of fabricating a physical model can be minimized by first creating a mathematical model using a computer software package, such as a computer aided design tool."
"Igi ən təmusne itagu təbiɗawt iyat gar ""əmikan ən maɗinan"" əd ""əmikan ən aytawanhayan""; aśuhu ən igitan ən əmik itawanhayan adoben adikil atiwazamadrayan dǎɣ igi izar ən əmik ən maɗinan dǎɣ tadhil ən tabarat ən informatique, atamosan alil ən anikmaman sajiha fal ordinateur."