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[[Image:Hgfru5.jpg|right|thumb|Justus van Ghent's depiction of Euclid.  No likeness or description of Euclid's physical appearance made during his lifetime survives.]]

[[Image:Hgfru5.jpg|right|thumb|Justus van Ghent's depiction of Euclid.  No likeness or description of Euclid's physical appearance made during his lifetime survives.]]

'''Euclid''' was a Greek mathematician who lived 325-365 B.C. in Hellenistic [[Alexandria]].  He was the father of geometry and  wrote the ''[[Elements]]'' which is considered to be one of the most successful mathematics textbooks ever. Euclid's Elements focuses mainly on [[geometry]] but also has a small amount of number theory dealing with [[prime number|prime numbers]] and even [[perfect number|perfect numbers]].  

'''Euclid''' was a [[Greeks|Greek]] mathematician who lived 325-365 B.C. in [[Hellenistic]] [[Alexandria]].  He was the father of [[geometry]] and  wrote the ''[[Elements]]'' which is considered to be one of the most successful mathematics textbooks ever. Euclid's Elements focuses mainly on [[geometry]] but also has a small amount of number theory dealing with [[prime number|prime numbers]] and even [[perfect number|perfect numbers]].  

== Other Works ==

== Other Works ==

==In poetry==

==In poetry==

The poet Edna St. Vincent Millay wrote a [[sonnet]], "Euclid alone has looked on Beauty bare," an appreciation of the intrinsic beauty of mathematics.<ref>[http://www.cs.rice.edu/~ssiyer/minstrels/txt/604.txt Euclid alone has looked on Beauty bare], online text</ref>

The poet Edna St. Vincent Millay wrote a [[sonnet]], "Euclid alone has looked on Beauty bare," an appreciation of the intrinsic beauty of mathematics. <ref>[http://www.cs.rice.edu/~ssiyer/minstrels/txt/604.txt Euclid alone has looked on Beauty bare], online text</ref>

Vachel Lindsay's poem, ''Euclid,'' views him in a less reverential way:

Vachel Lindsay's poem, ''Euclid,'' views him in a less reverential way:

*[http://aleph0.clarku.edu/~djoyce/java/elements/elements.html Euclid's elements], All thirteen books, with interactive diagrams using [[Java]].

*[http://aleph0.clarku.edu/~djoyce/java/elements/elements.html Euclid's elements], All thirteen books, with interactive diagrams using [[Java]].

*[http://euclides.org Euclid's elements], All thirteen books, in Spanish and Catalan.

*[http://euclides.org Euclid's elements], All thirteen books, in Spanish and Catalan.

[[Category:Mathematicians]]

[[Category:Mathematicians]]