Rene Descartes(1596-1650)
A French philosopher and mathematician. He was the first major philosopher in the modern era to make a serious effort to defeat skepticism. His views about knowledge and certainty and those on the relationship between mind and body have been very influential over the last three centuries." I am thinking there fore I exist" (Latin -'Cogito ergo sum'- from the discourse on method). He revelolutionized geometry, algebra and mathematical notation, to reduce the physical sciences to mathematics. He represented algebraic equations as geometrical curves, helping to establish co-ordinate geometry.
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