Nilakantha Somayaji

Keļallur Nīlakaṇṭha Somayāji, also referred to as Keļallur Comatiri, was a major mathematician and astronomer of the Kerala school of astronomy and mathematics. One of his most influential works was the comprehensive astronomical treatise Tantrasamgraha completed in 1501. He had also composed an elaborate commentary on Aryabhatiya called the Aryabhatiya Bhasya. In this Bhasya, Nilakantha had discussed infinite series expansions of trigonometric functions and problems of algebra and spherical geometry. Grahapariksakrama is a manual on making observations in astronomy based on instruments of the time. ^{Nilakantha Somayaji, Indian astronomer and mathematician (d. 1544)}

14 June 1444

Born on the same birth day (14 June): Boeta Dippenaar • Charles-Augustin de Coulomb • Claude Henderson • Daryl Sabara • Harry Turtledove • Jack Adams • Kevin McHale (actor) • Lise Nørgaard • Lucy Hale • Tõnu Sepp • William F. Nast

Born in the same month (June 1444): Charlotte, Queen of Cyprus