William Oughtred(1574-1660) was the first to use the symbol for parallel.
Archimedes first used the symbol PI because he was the first one to discover it so he wanted to investigate about it.
William oughtred
The symbol √ for the square root was first used in print in 1525 inChristoph Rudolff's Coss, which was also the first to use the then-new signs '+' and '-'
It was a cool looking greek letter.
Rene Descartes, who has been called the Father of Modern Philosophy, used alphabetic symbols to represent mathematical ideas. For instance, he used x to denote a variable.
discussing the use of geometry to build a house
Most people who use their brains and are open to thought will appreciate the beauty of mathematics. Some are able mathematicians, other less so. Descartes was one of the more able people.
Descartes used the parabola to illustrate algebraic equations. He put these equations on a visible plane using the Cartesian coordinate system and they sometimes took the shape of a "u" curve, or a parabola.
Descartes' mathematical formulas are used frequently in geometry. His slope theory and other algebraic formulas related to the geometric plane are still the standard in mathematics and his ideas helped form the basis of modern calculus.
Watching a fly fly about in his room and realised he could use three coordinates to give it's position in space.
Descartes did not discover geometry - he invented analytical geometry, which enabled mathematicians to use algebra to solve problems in geometry and geometry to solve problems in algebra. The world would be less developed than now, as would be the case with most discoveries.
Descartes believed that truth could be determined through reasoning and skepticism. He emphasized the use of doubt as a method to arrive at clear and distinct ideas that could be considered true beyond any doubt. This approach led to his famous statement "I think, therefore I am" as the foundation for knowledge.
Rene Descarite
René Descartes is considered one of the most influential figures in modern philosophy, known for his methodological skepticism and mind-body dualism. His legacy includes advancing the development of modern philosophy by emphasizing the use of reason and the pursuit of certainty through his famous statement "Cogito, ergo sum" (I think, therefore I am). Descartes' work laid the foundation for rationalism and the scientific method, influencing subsequent philosophers and scientists.
Yes, math would be different without René Descartes' discovery of analytic geometry. Descartes developed the Cartesian coordinate system, which introduced the use of algebraic equations to describe geometric shapes. This synthesis of algebra and geometry revolutionized mathematics, allowing for the development of new mathematical techniques and theories.
René Descartes is often referred to as the Father of Modern Philosophy. His work laid the foundations for the Age of Reason by emphasizing the use of reason and critical thinking in philosophical inquiry, as seen in his famous statement "Cogito, ergo sum" ("I think, therefore I am").