Matrakçı Nasuh

[3][4] Matrakçı Nasuh, born in the Bosnian town of Visoko,[5] was a Janissary who went through both the infantry and the devşirme system.

Although born to Bosnian Muslim parentage, Nasuh was drafted into the devşirme system, usually reserved for the Christian populace of the empire.

After a long period of studying mathematics and geometry, he wrote his works Cemâlü'l-Küttâb and Kemalü'l- Hisâb and submitted them to the Ottoman sultan Selim I.

One of his four volumes of miniatures deals with Suleiman I's Safavid war, upon which he had written his historical work Fetihname-i Karabuğdan.

Because of his success in this demonstration, Nasuh received the honorary title of Ustad ("master") and Reis ("chief") from the sultan.

He also wrote a book about usage of various weapons and techniques of cavalry and infantry fight, called Tuhfet-ül Guzât.

Siege of Nice (1543) by Matrakçı Nasuh
Wintering of the Ottoman fleet in Toulon (1543–44) by Matrakçı Nasuh
Matraki's square lattice multiplication
Matraki's triangular lattice multiplication