Fibonacci
Uruhererekane rw'amatega rukurikiza urutonde 1, 1, 2, 3, 5, 8, 13…: intambwe imwe imbere nyuma yo gutsindwa, intambwe ebyiri inyuma nyuma yo gutsinda.
Mu nteruro
Rworoheje kurusha MartingaleingambaMartingaleUruhererekane rw'amatega rukuba itega kabiri nyuma ya buri gutsindwa. Reba igice cy'Ingamba umenye icyo rukora n'icyo rudakora.Soma byose →, rutinda kugarura ibyatakaye, kandi rugarukira ku mbibi z'amezaamezaImbibi z'amezaItega rito n'irinini byemewe. Imbibi zo hejuru ni zo zihagarika impererekane zikuba kabiri.Soma byose → zimwe; igihombo giteganyijweimibareIgihombo giteganyijweAgaciro gateganyijwe gakubye amafaranga yose yategewe; igihombo mpuzandengo mu mukino umwe cyangwa mu gihe runaka.Soma byose → ni 2,70% y'amafaranga yose yategeweamafarangaAmafaranga yose yategeweAmafaranga yose yategewe mu mukino umwe cyangwa mu gihe runaka, harimo n'intsinzi zongeye gutegwa. Nanone: handle, action.Soma byose →.
Leonardo w'i Pisa yasobanuye uru rutonde mu 1202 nk'icyitegererezo cy'ukororoka kw'inkwavu. Rwageze ku meza ya roulette nyuma y'imyaka 700 binyuze mu buryo bwo gutega nta muntu wamenye uwabuhimbye.