It was to Ulugh Beg that Al-Kashi dedicated his important book of astronomical tables Khaqani Zij which was based on the tables of Nasir al-Tusi .
Ito ay upang Ulugh humingi na Al-Kashi alay ng kanyang mahalagang libro ng astronomya tables Khaqani Zij na kung saan ay batay sa mga talahanayan ng Nasir al-Tusi.