Abel has left mathematicians enough to keep them busy for 500 years.

". In a letter to Thomas Stieltjes in 1893 Hermite famously remarked: "I turn with terror and horror from this lamentable scourge of continuous functions with no derivatives. Charles Hermite (French pronunciation: ​[ʃaʁl ɛʁˈmit]) (December 24 1822 – January 14 1901) was a French mathematician who did research on number theory quadratic forms invariant theory orthogonal polynomials elliptic functions and algebra.