ABULHASANI NASAVI

ABULHASANI NASAVI (soli tavallud  nomalum – vafot takqriban 1030), riyozdoni asri 11 fors-tojik. Dar sarchashmaho bo shakli navishti arabii Abul-Hasan Ali ibn Ahmad an-Nasavi vomekhurad. Abulhasani Nasavi shogirdi Hushyori Geloni (Jili) bud. Faoliyati ilmiash asosan dar shahrhoi Ray va Isfahon dar darbori sultoni sulolai Buvaykhiyon Majduddavla va dar shahri Gazna dar darbori Mahmudi Gaznavi va gaznaviyon va badi barhamkhurii salta­nati gaznaviyon boz dar Isfahon dar zamoni saltanati saljuqiyon guzashtaast. Risolahoi zerin namunaho az osori ust: «Kitob al-ishbo fi sharh ash-shakl al-kita» («Kitob dar borai fahmondadihii shakli qitaho»), «Risola fi marifat at-taqvim va- l-usturlob» («Risola dar marifati taqvim va usturlob»). Risolai «Al- mukni fi-l-hisob il-hindi» («Mukammal dar borai hisobi hindi») ba zaboni forsi talif gardida, sipas ba arabi tarjuma shudaast.

Nuskhai arabii on holo dar kitobkhonai Ley­den mahfuz ast. Risola az 4 bob iborat buda, dar on dar borai amalho bo adadhoi butun, kasri, kasrhoi omekh- ta va hisobi shasti sukhan meravad. Abulhasani Nasavi usuli sodatarini az reshahoi kvadrati va kubi barovardani adadro peshnihod kard, ki matematiko- ni evropoi P. Ruffini (1804) va U. Gorner (1819) onro takmil dodaand.

Abulhasani Nasavi  ba asarhoi olimoni Yunoni Qadim Menelay va Arkhimed sharh na­vishtaast