Yusuf al-Mutamin,was a mathematician. He wrote Kitab al-Istikmal (Book of Perfection) in mathematics.
Born on 1545 Died on 1605
Cigalazade Yusuf Sinan Pasha was an Ottoman statesman who held the office of Grand Vizier for forty days between 27 October to 5 December 1596, during the reign of Mehmed III. He was also a Kapudan Pasha (Grand Admiral of the Ottoman Navy) as well as a military general.