Kamal al-Din Hasan ibn Ali ibn Hasan al-Farisi or Abu Hasan Muhammad ibn Hasan ) was a Persian Muslim scientist. He made two major contributions to science, one on optics, the other on number theory. Farisi was a pupil of the astronomer and mathematician Qutb al-Din al-Shirazi, who in turn was a pupil of Nasir al-Din Tusi.
Kamal al-Din al-Farisi's autograph manuscript in Optics, Tanqih al-Manazir, 1309 A.D., Adilnor Collection.
The colophone of Al-Basa'ir fi 'ilm al-Basa'ir, copied in 731 H.E. from Kamal al-Din's original manuscript, states that Kamal al-Din's real name is al-Hasan ibn Ali ibn al-Hasan and he has completed the work in 708 H.E. The scribe states also that Kamal al-Din died on 19 Dhu al-Qa'dah 718 H.E. (12 January 1319)
Qotb al-Din Mahmoud b. Zia al-Din Mas'ud b. Mosleh Shirazi was a 13th-century Persian polymath and poet who made contributions to astronomy, mathematics, medicine, physics, music theory, philosophy and Sufism.
Epicyclic planetary model in a medieval manuscript by Qutb al-Din al-Shirazi.
a manuscript copy of Shirazi's al-Tuhfa al-Shahiya, 15th century
Shirazi's Tomb in Tabriz, Charandab