Euclidean geometry is a mathematical well-known system attributed to the Greek mathematician Euclid of Alexandria. Euclid's text Elements was the first systematic discussion of geometry. It has been ...

"An appendix of practical geometry" has special dated title page which reads: An appendix of practical geometry. In two parts. The first contains an easy, brief, and independent demonstration of ...

THIS is a collection of 823 examples illustrating the various propositions of Euclid's six books, as well as many other domains of the geometry of the right line and circle, such as maxima and minima, ...

There is no satisfactory theory of three-dimensional non-Euclidean geometry, from an intuitional point of view, unless it gives us a clear three-dimensional image in our ordinary space, assuming, of ...

The first proof that many people ever learn, early in high school, is the ancient Greek mathematician Euclid’s proof that there are infinitely many prime numbers. It takes just a few lines and uses no ...