Friday, November 22, 2019

Euclid of Alexandria and His Contributions to Geometry

Euclid of Alexandria and His Contributions to Geometry Euclid of Alexandria lived in 365-300 BC (approximately). Mathematicians usually refer to him simply as Euclid, but hes sometimes called Euclid of Alexandria to avoid confusion with the Green Socratic philosopher Euclid of Megara. Euclid of Alexandria is considered to be the Father of Geometry. Very little is known about Euclids life except that he taught in Alexandria, Egypt. He may have become educated at Platos Academy in Athens, or possibly from some of Platos students. He is an important historical figure because all of the rules we use in Geometry today are based on the writings of Euclid, specifically The Elements. The Elements includes the following Volumes: Volumes 1-6: Plane GeometryVolumes 7-9: Number TheoryVolume 10: Eudoxus Theory of Irrational NumbersVolumes 11-13: Solid Geometry The first edition of the Elements was actually printed in 1482 in a very logical, coherent framework. More than one thousand editions have been printed throughout the decades. Schools only stopped using the Elements in the early 1900s, some were still using it in the early 1980s, however, the theories continue to be those that we use today. Euclids book the Elements also contains the beginnings of number theory. The Euclidean algorithm, which is often referred to as Euclids algorithm, is used to determine the greatest common divisor (gcd) of two integers. It is one of the oldest algorithms known and was included in Euclids Elements. Euclids algorithm does not require factoring. Euclid also discusses perfect numbers, infinite prime numbers, and Mersenne primes (the Euclid-Euler theorem). The concepts presented in The Elements werent all original. Many of them had been proposed by earlier mathematicians. Possibly the greatest value of Euclids writings is that they present the ideas as a comprehensive, well-organized reference. The principals are supported by mathematical proofs, which geometry students learn even to this day. Main Contributions He is famous for his treatise on geometry: The Elements. The Elements makes Euclid one of if not the most famous mathematics teacher. The knowledge in the Elements has been the foundation for teachers of mathematics for over 2000 years Geometry tutorials wouldnt be possible without the work of Euclid. Famous Quote:  There is no royal road to geometry. In addition to his brilliant contributions to linear and planar geometry, Euclid wrote about number theory, rigor, perspective, conical geometry, and spherical geometry. Recommended Read Remarkable Mathematicians: The author of this book  profiles 60 famous mathematicians who were born between 1700 and 1910 and provides insight into their remarkable lives and their contributions to the field of math. This text is organized chronologically and provides interesting information about the details of the mathematicians lives. Euclidean Geometry vs Non-Euclidean Geometry At the time, and for many centuries, Euclids work was simply called geometry because it was assumed to be the only possible method of describing space and the position of figures. In the 19th century, other types of geometry were described. Now, Euclids work is called Euclidean geometry to distinguish it from the other methods. Edited by Anne Marie Helmenstine, Ph.D.

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