Description

Yahya ibn Muhammad al-Ḥattab al-Ruʻayni (circa 1496‒circa 1587) was a mathematician, astronomer, and Maliki jurist. He was born in Mecca into a learned family of Maghrebi descent; his father Muhammad was likewise a mathematician and astronomer. A formidable author in his own right, Yahya is probably best known for his Irshād al-sā’lik al-muḥtāj ilá bayān afʻāl al-muʻtamir wa al-hāj (A guide to the rituals of Umra and Hajj). He also wrote on the sine quadrant and parallel circles, commenting on works by his father, as ...