Alright, let’s see a show of hands — don’t worry, we can’t tell. How many of you have taken a course in analytical geometry in high school or college? I thought so, very few have taken such a course.

What Aczel did for mathematician Fermat (Fermat's Last Theorem) he now does for Descartes in this splendid study about the French philosopher and mathematician (1596–1650) most famous for his paradigm ...

Rene Descartes (1596–1650) is the author of perhaps the most famous philosophical quote of all, cogito ergo sum, usually rendered as I think, therefore I am. There is however more to this quote, and ...