Pierre de Fermat (August 17 1601-January 12 1665) was a French lawyer at the "Parlement" of Toulouse, France, and a mathematician who is given credit for early developments that led to modern calculus. In particular, he is recognised for his discovery of an original method of finding the greatest and the smallest ordinates of curved lines, which is analogous to that of the then unknown differential calculus, as well as his research into the theory of numbers. Wikipedia
The definitive Wikipedia entry for Pierre de Fermat. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Pierre_de_Fermat
... Fermat's Achievements Pierre de Fermat published very little in his lifetime, and yet by most accounts, he is considered to be one of the greatest mathematicians of all time .I was very ... fermatslasttheorem.blogspot.com/2005/05/fermats-achieveme...
