Leḥsab n usqif n wuzzal s tikli n 180 n tfesniwin d yiwen n uẓar n zigzag
Ttxil sken-d lqidar ilaqen s milimitren.
X - Tehri n uldi n tesraft
Y - Taɣzi n uldi
W - Tewri n usliẓri
E - Tehri n tmeẓdit
F - Aɛeddi n isurifen
T - amḍan n yiɣil
C - Amḍan n isurifen
Z - Taɣect n usurif
A - Taɣect n teɣsert n lqern
G - Tewri n tesfift
SP - Afeḍ-d amkan n tmeẓẓuɣt tamezwarut s tmuɣli n uswir n lqaɛa n lqaɛa tis snat.
LR - Sbedd taswiɛt n usnerni. I usnulfu n usqif.
Tizemmar n wahil.
Leḥsab n yiwen n usenfar yelhan n tmeẓdiyin n wuzzal s tmuɣli n 180 n tfesniwin.
Asenqed n tmerna n ttawilat i ilaqen.
Imeẓla n tɣawsiwin s tɣawla n wakk iḥricen.
Iḍrisen d tfelwiyin n wakk iferdisen n tmeẓdiyin n wuzzal.