Leonardo Fibonacci

D amussnak (mathématicien) aṭelyani , Leonardo Fibonacci , neɣ Leonardo Pisano (Leonardo n Pise), ilul di temdint n Pisa tamdint n tnezzut (commerce). Mi yewweḍ 20 n yiseggasen di ticett-is iḍfer baba-s ɣer tafriqt ugafa (ar Bgayet ) din i yeɣra anagraw n usmiden ihendiyen d usmiden inselmanen. Mi d-yuɣal ɣer Turuft (Europe), deg useggas 1202, yessuffeɣ-d adlis Liber abaci , deg-s i d-immal asmiden anselman d wulac (0).

Fibonacci yura ɣef tiẓri n yemḍanen d tnezzeggit (géométrie), yettwassen daɣen s umazrar (suite) n "tlalit n iwtal":

U1=0 ; U2=0 ; Un=Un-1 + Un-2 n>2 (0, 1, 1, 2, 3, 5, 8, 13, ...).

Amazrar-agi isnulfa t-id asmi is d-sutren kra n imɣiden ɣef tnerni n iwtal-nsen. Ran ad walin acḥal n iwtal ar a d-yeǧ myal awtul illan ɣur-sen. Dɣa netta, imi i issen i tusnakt tikli issal-id amazrar yeṭfen ism-is ar ass-a : amazrar n Fibonacci.

Iɣbula

Tamselyut