1 of 12
New! Free Haiku Deck for PowerPoint Add-In
Published on Nov 18, 2015
MORE DECKS TO EXPLORE
BY SIMONE LEFLORE
"I Think, Therefore I Am."
René Descartes was born on March 31, 1596, in La Haye, France, and died on February 11, 1650, in Stockholm, Sweden.
He was the youngest of three children, and his mother died when he was one.
His father sent him to a boarding school at Jesuit College of Henri IV at age 8.
Descartes is mostly known for his famous quote: "I think, therefore I am."
He was a French philosopher, Scientist, and a Mathematician.
His works were created from his idea "Cogito, ergo sum.", which means, "I think, therefore I am."
In 1618, he was a student of mathematics and military architecture.
He was influenced by physicist Isaac Beeckman in his studies of mathematics and science.
He created a method of deductive reasoning for all sciences based on mathematics.
Life span- March,1596-February,1650.
Early education started at Jesuit College of Henri IV at age 8 thru 15.
Age 15 thru 22 studied Law at the University of Poiters.
Age 22, after graduating from the University of Poiters, he had visions that
-determined the course of his study for the rest of his life.
1616-1629 Early mathematical researches
1628 Moved to the Netherlands.
1635 Daughter Francine was born. She died 5 years later from a fever.
1637 Wrote "La Géométrie"
La Haye, Touraine, France - birthplace
Stockholm, Sweden - residence at time of death
Chatellerault and Poiters - location of Father's farms and houses
Le Flèche, France - Studies
Northern & Southern Europe - travelled 1619 to 1628
Bohemia, Czech Republic - invented "analytic geometry" -1619
Paris, France - moved here in 1622
Netherlands - spent last 22 years of his life here after leaving Paris.
Great influence in his study of mathematics was Isaac Beeckman
Beeckman engaged Descartes in thinking of the problems between
-"falling bodies, physic-Mathematica and mathematical problems.
Discovered theories and ideas during his studies with Beeckman that would
-make analytic geometry possible.
He felt that geometry was the basic mathematical science
-with algebraic formulas as an option for calculations that were too difficult
-using a compass and ruler.
Nineteenth century algebraic geometry became "Cartesian coordinates"; in honor of his
Descartes explains "how" in his introduction in La Géométrie:
"Any problem in geometry can be easily reduced to such terms that a
-knowledge of the length of certain straight lines is sufficient for construction."
Defined a unit of length and created procedures for adding, subtracting, multiplying and
-dividing line segments and for graphically figuring out root segments.
Geometric problems could be expressed in algebraic terms
--using a vertical axis, "a" and a horizontal axis, "b"
Told Beeckman that there is no problem in geometry can't be expressed using
-axis, lines and curves; such as lower a,b,c for known quantities and x,y,z
--and lowercase x,y, and z for unknown quantities