Quanta Magazine5d
Rational or Not? This Basic Math Question Took Decades to Answer.
It’s surprisingly difficult to prove one of the most basic properties of a number: whether it can be written as a fraction. A ...
Scientific American26d
Mysterious Constant That Makes Mathematicians Despair
The brilliant Swiss mathematician Leonhard Euler had cut his teeth on it and failed to solve it. Now Apéry, a French mathematician who was relatively unknown and in his 60s at the time ...
Scientific American9d
Leonhard Euler and the Koenigsberg Bridges
More by Leonhard Euler This article was originally published with the title “ Leonhard Euler and the Koenigsberg Bridges ” in Scientific American Magazine Vol. 189 No. 1 ( July 1953 ) , p. 66 ...
University of Vermont9d
Set operations
Because they are commonly used and very handy, we’ll include some Euler diagrams here. An Euler diagram (named after the great mathematician Leonhard Euler, 1707–1783) is used to show sets and their ...
Greek Reporter16d
Ancient Greek Mathematician Apollonius and His Insoluble Problem
All of history’s most brilliant mathematicians, including Sir Isaac Newton, Leonhard Euler, Carl Friedrich Gauss, and Rene Descartes, worked on this problem in one form or another. In the end, it was ...