Leḥsab n tmerna n tfelwiyin n tmeẓdiyin.

Leḥsab n umḍan n tfelwiyin n usbeddi n beṭun, iẓra n usbeddi

Ttxil-k sken-d lqidar ilaqen s lmitrat.

A - Tiɣzi n ubrid.
B - Tehri n ubrid.
C - Amḍan n tfelwiyin n tmeẓdiyin deg 1 n lmitrat imkuẓen.
H - Telqi n tmeẓẓuɣt i tfelwiyin. Umaḍgir.

S waya, ahil-a ad yeḥseb tajumma n webrid neɣ n tmeẓdit, amḍan n tfelwiyin neɣ n yiẓra n tmeẓdiyin ay yettwaḥettmen, azal n llsas i tfelwiyin-a, azal n leqdic n ussekcem d tajumma n yiwet n tfelwit.

Ahil n usrusu n tfelwiyin n ubrid

Deg uḍris, leḥsab yettak-d yiwen n usnulfu n tqacuct n yiẓra n tmeẓdiyin neɣ n tfelwiyin n tmeẓdiyin n tmeẓdiyin.
Diagram-a yettunefk i uqeyem n tmuɣli n usras d ugezzum n tfelwiyin.
Aya ad iɛiwen ad d-yesban amek ara d-yessers abrid neɣ abrid n tkerrust.

Ma yella tban-d telqi n tmeẓri, ahil ad iḥess azal-is. Akken ad nḥess lqidar n tɣawsiwin i lsas n lḥemla neɣ n beṭun.

I tmuɣliwin, i tɣawsiwin, i teknoloji n usras d umḍan n tfelwiyin deg lmitrat imkuẓen, ttxil-k sqerdec sɣur wid i d-yesnulfan.