Mathematician:Abu Ali al-Hasan ibn al-Haytham

Full name:
 * Abū ʿAlī al-Ḥasan ibn al-Ḥasan ibn al-Haytham
 * In Arabic: ابو علي، حسن بن حسن بن الهيثم
 * In Persian: ابن هیثم

Best known as Alhacen or (deprecated) Alhazen.

Persian philosopher, scientist and all-round genius who made significant contributions to number theory and geometry.

His work influenced the work of René Descartes and the calculus of Isaac Newton.

Nationality
Persian

History

 * Born: 965, in Basra, Persia (now Iraq)
 * Died: c. 1039, in Cairo, Egypt

Books and Papers

 * Analysis and Synthesis, in which he discussed perfect numbers.
 * Opuscula, in which he used the result now known as Wilson's Theorem.

Approximately 50 of the supposedly 200 or so works of his survive. Not all have been studied and translated.