Kukho umba we-mathematics okumgangatho ongasentla, omalunga nokwenziwa komlinganiselo wezinto ngophawu olungaqhelekanga. Lo ke umlinganiselo kuthiwa lulwazi ngomlinganiselo. Umlinganiselo ungakukulingana, ubude bento, okanye bomgama, njalo njalo.