Al-Isfazārī was a contemporary of the Persian polymathUmar al-Khayyam and the Persian astronomer Al-Khazini. Al-Isfazārī's main surviving work, Irshād dhawī al-cirfān ilā ṣinācat al-qaffān (Guiding the Possessors of Learning in the Art of the Steelyard), sets out the theory of the steelyard balance with unequal arms. His other surviving works include a summary of Euclid's Elements, a text on geometrical measurements, and a treatise in Persian on meteorology.[1]
Al-Isfazārī's corpus of mechanics is composed of two sets of texts, which have been published as Matn al-Muẓaffar al-Isfazārī fī cilmay al-aṯqāl wa’l-ḥiyal(Text of Al-Muzaffar Al-Isfazar in the words Al-Taql and Al-Hail) by the Al-Furqan Islamic Heritage Foundation.[2]