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

Theorems and Definitions

 * Alhazen's Problem

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
 * Book of Optics
 * Balance of Wisdom
 * Corrections to the Almagest
 * Discourse on Place
 * Exact Determination of the Pole
 * Exact Determination of the Meridian
 * Finding the Direction of Qibla by Calculation
 * Horizontal Sundials
 * Hour Lines
 * Doubts Concerning Ptolemy
 * Maqala fi'l-Qarastun
 * On Completion of the Conics
 * On Seeing the Stars
 * On Squaring the Circle
 * On the Burning Sphere
 * On the Configuration of the World
 * On the Form of Eclipse
 * On the Light of Stars
 * On the Light of the Moon
 * On the Milky Way
 * On the Nature of Shadows
 * On the Rainbow and Halo
 * Resolution of Doubts Concerning the Almagest
 * Resolution of Doubts Concerning the Winding Motion
 * The Correction of the Operations in Astronomy
 * The Different Heights of the Planets
 * The Direction of Mecca
 * The Model of the Motions of Each of the Seven Planets
 * The Model of the Universe
 * The Motion of the Moon
 * The Ratios of Hourly Arcs to their Heights
 * The Winding Motion
 * Treatise on Light
 * Treatise on Place
 * Treatise on the Influence of Melodies on the Souls of Animals

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