## Most recent change of Euclid

Edit made on February 22, 2009 by RiderOfGiraffes at 10:10:48

Deleted text in red /
Inserted text in green

WW

HEADERS_END

[[[> IMG:Euclid.jpeg ]]]

Euclid, also known as Euclid of Alexandria and the "Father of Geometry", was a Greek mathematician

who lived around 300BC. His book "The Elements" is described as the most successful textbook in the

history of mathematics. In it, the principles of what is now called Euclidean geometry are deduced

from a small set of axioms. Euclid also wrote works on perspective, conic sections, spherical geometry,

and rigor.

* Proved there are infinitely many prime numbers

* worked on geometry

** now called Euclidean geometry, because there are now Non-Euclidean versions of geometry

* perfect numbers

* Mersenne primes

* Euclidean algorithm for finding the greatest common divisor of two numbers.

* Invented the Dedekind Cut

** (apparently in !/ "The Elements" !/ )

----

One of the Famous People on this site.