# Abel, Niels Henrik[**ah**bel](1802--29) Mathematician, born in Finnøy, Norway. He showed mathematical genius by the age of 15, and in 1823 proved that there was no algebraic formula for the solution of a general polynomial equation of the fifth degree. He developed the concept of elliptic functions independently of Carl Gustav Jacobi, and the theory of Abelian integrals and functions became a central theme of later 19th-c analysis. |