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# What are some inventions of Rene Descartes?

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According to Wichita State University, Rene Descartes invented the Cartesian Plane, which is a theory of using ordered pairs to determine a specific point. This theory, explained in "La Geometrie," led to the invention of analytical geometry in which algebra is applied to geometry.

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Part of the Cartesian Plane theory is the Cartesian coordinate system, a three-dimensional coordinate system. The modern Cartesian coordinate system is often simplified to a two-dimensional system with a horizontal line called the x-axis and a vertical line called the y-axis. The lines are labelled and intersect at the origin point at zero. The location of points between the x- and y-axes are determined by reading the numbers on both axes.

Rene Descartes lived during the 1600s. He started his education at the age of eight, in the Jesuit College in France. Despite frequent ill health, Descartes studied at the college for eight years before moving to Paris to study mathematics. He thought that mathematics was the portal to understanding the science of nature. At the age of 21, in 1617, he joined the army. It was during his military service that he truly started his love affair with mathematics. He left the army in 1621 to devote his time to mathematics, but it took him 17 years to publish "La Geometrie."

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## Related Questions

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The slope formula was likely discovered by Rene Descartes around the turn of the seventeenth century. Descartes is widely considered to be the father of analytical geometry, and is the inventor of the Cartesian grid, which is the most commonly used grid in mathematics today.

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Rene Descartes is responsible for inventing the Cartesian coordinate system. Descartes is also responsible for inventing the field of analytical geometry.

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Although certain concepts key to the Cartesian plane are found in works as early as ancient Greece, scholars credit Rene Descartes with the critical concept of applying algebra to geometry. Descartes introduced the notion of arithmetizing analytical geometry by assigning coordinates to two points in a plane. After Descartes published his theories, other mathematicians immediately began expanding upon his ideas and developing the Cartesian plane.