Leḥsab n yiwen n uɣerrabu n umkan
Ttxil sken-d lqis s milimitren
X - Tiɣzi n tesraft n daxel
Y - Tehri n tesraft n daxel
W - Aswir n waman
H - Taɣzi n uɣṛab azelmaḍ
H2 - Lqedd n lḥiḍ ayeffus
U1 - Tabeɛḍit ɣer tɣerɣert
U2 - Tehri n usurif.
A - Teɣzi n lḥiḍ
B - Taɣect n ddaw
E - Tewri n yidis
F - Taɣzi n yidis
Ahil-a ad iɛiwen deg usnulfu n tmeqbert n usgunfu d uḥseb n tɣawsiwin n lebni.
S lemɛawna-s, tzemreḍ ad tḥesbeḍ tajumma n tfelwit n daxel d yidis n tɣerɣert i lmend n ussiɣzef n tɣawsiwin n wudem d tmeẓdiyin n waman, lqidar n tbuciḍant, ad d-tafeḍ azal n beṭun d wazal n lxedma n lqaɛa i lebni-ines, af-d azal n waman i ufran d ussiɣzef n ttawilat i tmeqbert.
Akken ad tḥesbeḍ, ččar iḥricen yellan deg tfelwit yellan deg uzelmaḍ s wazalen iwatan.
Deffir waya, ahil ad ak-d-yefk agmuḍ s talɣa n usnulfu n tmeẓdit d tmeẓdit n yiferdisen ilaqen i leḥsabat.