That he is sentient ie that he thinks.
Short answer: Descartes' doubt was like WWI - the doubt to end all doubt. Only by doubting everything could Descartes hope to find anything that was certain (even if the only certainty is that nothing else is certain!).
Descartes did not invent polynomials.
Philosophically, Descartes was concerned with the existence of reality.
Rene Descartes was a French mathematician who created coordinated geometry.
The folium of Descartes is a curve with applications in mathematics and physics. It is used in studying polynomial equations and as an example of a curve in algebraic geometry. In physics, it can model certain physical phenomena involving curves and equations.
Folium Linoleum
Folium (folii, n).
Rene Descartes was a Philosopher.philosopher (a person whose primary area of research and study is philosophy)
The Latin word for "leaf" is folium (-i, n.).
Descartes hopes to find out what he can know for certain, without any doubt, about the world and nature.
Descartes 3 goals are: Find a unified set of principles, reconcile the mechanistic view of the world with human freedom, and to find certainty.
"Folium" means "leaf" in Latin.
That he is sentient ie that he thinks.
"Foliated" comes from folium, which means "leaf."
A town that Descartes born was renamed into 'Descartes"
Short answer: Descartes' doubt was like WWI - the doubt to end all doubt. Only by doubting everything could Descartes hope to find anything that was certain (even if the only certainty is that nothing else is certain!).