Frenchman '''Pierre de Fermat''' (1601–1665) was one of the two leading mathematicians of the early 1600s, the other being Rene Descartes. Fermat was a founder of the modern theory of numbers, discovered the fundamental principle of analytic geometry (independent of Descartes' work) and helped found the theory of probability (with [[Blaise Pascal]]). By trade Fermat was a lawyer. | Frenchman '''Pierre de Fermat''' (1601–1665) was one of the two leading mathematicians of the early 1600s, the other being Rene Descartes. Fermat was a founder of the modern theory of numbers, discovered the fundamental principle of analytic geometry (independent of Descartes' work) and helped found the theory of probability (with [[Blaise Pascal]]). By trade Fermat was a lawyer. |