Sanad ibn Ali

Sanad ibn Ali
Diedafter 864 AD
Occupation(s)Astronomer, translator, mathematician, engineer
Notable workZij al-Sindhind, Decimal mark
FatherAli-Musa

Abu al-Tayyib Sanad ibn Ali, also known as Sind ibn Ali (died c. 864 C.E.), was a ninth-century astronomer, translator, mathematician and engineer during Islamic Golden Age who was employed at the court of the Abbasid caliph Al-Ma'mun. A later convert to Islam, Sanad's father was a learned astronomer who lived and worked in Baghdad.