Euclid
Si Euclid (;  – Eukleídēs, ; fl. 300 BC), inaapod man na Euclid kan Alexandriya para magkaigwang kalaenan ki Euclid of Megara, sarong Griyegong matematiko, na sarong "kagmukna nin heometriya" o "ama nin heometriya".

Siya aktibo sa Alexandria kan namamayo si Ptolemy I (323–283 BC). An saiyang Elements an saro sa mga impluwensiyal niyang gibo sa kasaysayan nin matematika,an nagsisirbeng libro sa pagtukdo nin matematika (urog na an heometriya) sa puon kan publikasyon hasta sa huring ika-19 o enot na siglo. Sa Elements, binawasan ni Euclid an theorem kaya inaapod ngunyan na Euclidean geometry hale sa sadit na axioms. Sinurat man ni Euclid an perspective, conic sections, spherical geometry, number theory, asin mathematical rigour.

Etimolohiya 
An Ingles na ngarang Euclid iyo an anglikong bersyon kan Griyegong ngarang Εὐκλείδης, boot-sabihon "bistado, matrayumpo".

Legasiya 
An Euclid spacecraft kan European Space Agency (ESA) iyo pinangaranan para sa saiyang onra.

Mga toltolan

Mga nasambit na ginibuhan 

 Artmann, Benno (1999). Euclid: The Creation of Mathematics. New York: Springer. .
 
 
  With extensive bibliography.
 
 As reproduced in the .
 Heath, Thomas L. (1981). A History of Greek Mathematics, 2 Vols. New York: Dover Publications. .
 Kline, Morris (1980). Mathematics: The Loss of Certainty. Oxford: Oxford University Press. .
 
 
 Proclus, A commentary on the First Book of Euclid's Elements, translated by Glenn Raymond Morrow, Princeton University Press, 1992. .

Magbasa pa lalo

Panluwas na takod 

 Euclid's Elements , All thirteen books, with interactive diagrams using Java. Clark University
 Euclid's Elements, with the original Greek and an English translation on facing pages (includes PDF version for printing). University of Texas.
 Euclid's Elements, books I–VI, in English pdf, in a Project Gutenberg Victorian textbook edition with diagrams.
 Euclid's Elements, All thirteen books, in several languages as Spanish, Catalan, English, German, Portuguese, Arabic, Italian, Russian and Chinese.
 Elementa Geometriae  1482, Venice. From Rare Book Room.
 Elementa  888 AD, Byzantine. From Rare Book Room.
 Texts on Ancient Mathematics and Mathematical Astronomy PDF scans (Note: many are very large files). Includes editions and translations of Euclid's Elements, Data, and Optica, Proclus's Commentary on Euclid, and other historical sources.
 "The elements of geometrie of the most auncient Philosopher Euclide of Megara" (1570) from the English Printing Collection in the Rare Book and Special Collection Division at the Library of Congress.

Mga matematiko