Aglay (tusnakt)

Aglay (s Teglizit: Ellipse) d tameknut isebṭen i d-iteggen s uylan-a: tanafa n tiddi n yal agaz deg tmeknut-a ɣef sin n wagazen ibedden s agensu-ines (ttwasemman idiken) ittɣamay ibedd.E. Hartmann: Lecture Note 'Planar Circle Geometries', an Introduction to Möbius-, Laguerre- and Minkowski Planes, p. 55 

idiken d agazen F1 d F2 deg telɣa. 

Ihi yezmer ad yili usuneɣ n uglay s weɣris yettusbedden seg ijufaṛ-is deg sin n wagazen F1 d F2, d usuneɣ n uglay fell-asen s yimru seg wagaz X. 
Aglay daɣen d yiwet n telmest n ikaswaranen, mi ara ad tettwagzam ukaswar s weswir imalen deg ugellus n ukaswar ad nessuffeɣ aglay.

 Iylanen 

 Tigda tiljibriyin d wenkaz alemmas 

 Tirrayin n usuneɣ n uglay 

 Tajumma n uglay 

 Imniren 

 Ẓeṛ daɣen 

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