Ibn Yunus ابن يونس
Full Name: Abu al-Hasan Ali ibn Abi al-Said ‘Abd al-Rahman ibn Ahmad ibn Yunus ibn Abd al-‘Ala al-Sadafi al-Misri.
Arabic: أبو الحسن علي أبي السعيد بن عبد الرحمن بن أحمد بن يونس بن عبد الأعلى الصدفي المصري
Latin: Methilem.
Origin: Fustat, Ikhshidid Emirate of Egypt, now Egypt.
Born: 950 AD.
Died: 1,009 AD.
Famous for: Astronomer and Mathematician.
Contribution:
He calculated with great accuracy the inclination of the ecliptic circle.
The first to solve some of the trigonometric equations that are used in astronomy.
Articles
https://en.wikipedia.org/wiki/Ibn_Yunus