Leonhard Euler

**Leonhard Euler**
	Swiss mathematician, physicist, and engineer (1707–1783) Retrat d'Euler per Jakob Emanuel Handmann (1753).
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Name in native language	Leonhard Euler;
Date of birth	15 April 1707; Basel (canton of Basel, Old Swiss Confederacy)
Date of death	18 September 1783; Saint Petersburg (Russian Empire)
Manner of death	natural causes;
Cause of death	cerebral hemorrhage;
Place of burial	Smolensky Lutheran Cemetery (–1957); Lazarev Cemetery (59°55′12″N 30°23′24″E, 1957–);
Country of citizenship	Old Swiss Confederacy; Russian Empire; Kingdom of Prussia;
Residence	Basel; Saint Petersburg (1727–1741); Saint Petersburg (1766–); Berlin (1741–1753); Q15782821 (1753–1766);
Educated at	University of Basel (1720–);
Doctoral advisor	Johann Bernoulli;
Occupation	mathematician; physicist; university teacher; writer; music theorist; astronomer; scientist; inventor; executive; geographer;
Employer	Royal Prussian Academy of Sciences; Saint Petersburg State University; Saint Petersburg Academy of Sciences (1766–); Saint Petersburg Academy of Sciences (1727–1741);
Member of	Royal Prussian Academy of Sciences (1741–); Royal Swedish Academy of Sciences; Saint Petersburg Academy of Sciences (1730–); French Academy of Sciences (1755–); American Academy of Arts and Sciences (1782–); Royal Society (Fellow of the Royal Society, 1747–); Academy of Sciences of Turin (1760–);
Position held	adjunct (1727–1730); professor (1731 (in Julian calendar) – 1741); professor (1766–);
Field of work	mathematical analysis; number theory; shipbuilding; calculus of variations; astronomy; mechanics; theory of differential equations; ballistics; optics; mathematics; music theory; differential calculus; graph theory; physics; logic;
Father	Paul III Euler;
Mother	Marguerite Brucker;
Child	Johann Euler; Christoph Euler; Carl Euler;
Spouse	Salomea Abigail Euler (1776–); Katharina Euler (1734–1773);
Work location	Saint Petersburg (1727–); Berlin (1741–1766); Basel; Saint Petersburg; Berlin;
Notable work	Euler's theorem; Euler's rotation theorem; Euler's theorem in geometry; Euler's sum of powers conjecture; Euler's polyhedron formula; Euler-Lagrange equation; Cauchy–Euler equation; Euler's totient function; Euler's identity; Euler's four-square identity; Euler's formula; Euler's theorem; gamma function; Gaussian integral; Euler–Mascheroni constant; lucky numbers of Euler; Euler diagram; nine-point circle; Euler line; Eulerian path;
Authority file
	Q7604; ISNI: 0000000121245291; VIAF ID: 24639786; GND ID: 118531379; Library of Congress authority ID: n50010222; Bibliothèque nationale de France ID: 12157666x; IdRef ID: 028115481; NDL Authority ID: 00652487; Libraries Australia ID: 35069249; NL CR AUT ID: ola2002161287; HDS ID: 018751; SELIBR ID: 185712; National Library of Israel ID (old): 000044595; National Library of Spain ID: XX893649; Nationale Thesaurus voor Auteursnamen ID: 069355770; NORAF ID: 90743512; NUKAT ID: n98007245; NLP ID (old): a0000001797210; National Library of Korea ID: KAC200901598, KAC201102153; Libris-URI: vs6888qd42r4qlr; PLWABN ID: 9810667829305606; J9U ID: 987007260793905171; FranceArchives agent ID: 301269974; NACSIS-CAT author ID: DA01184372; SBN author ID: VEAV019451; Open Library ID: OL30028A; Mathematics Genealogy Project ID: 38586; IMDb ID: nm5996380
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Euler; Euler; Euler, Leonhard; jan Lejona Ola; jan Ole; jan Ola; jan Leonhard Euler; jan Euler; Эйлер Леонард; Эйлер, Леонард; Euler, Leonhard; L. Euler; Euler; Leonhard Paul Euler; Leonard Euler; Leonnard Eiler; L. Euler; Leonard Ejler; Leonhardo Eulero; Leonhardus Eulerus; L. Ejler; Eulero; Leonhard Evler; Leonhard Eyler; Liunardu Euleru; Ejler; Leonhard Paul Euler; Euler; Leonhard Paul Euler; オイラー; Euler, Leonhard; L. Euler; Euler; Leonhard Paul Euler; Leonhard Paul Euler; Lionard Euler; Leonhard Paul Euler; Leonhard Euler; אוילר; Léonhard Euler; Leonhard Paul Euler; Euler; Leonhard Paul Euler; Leonhard Paul Euler; Euler; Leonhard Paul Euler; ليونهارد أويلر; ليونارد أويلر; أويلر; 欧拉; 歐拉; 欧拉; 莱奥哈尔德·欧拉; 莱昂哈德·欧拉; 李昂哈德·尤拉; 欧拉，L.</nowiki>



Alternative names	Euler, Leonhard; L. Euler; Euler
Description	Swiss mathematician, physicist, university teacher, writer, music theorist and astronomer
Date of birth/death	15 April 1707	18 September 1783
Location of birth/death	Basel, Switzerland	Saint Petersburg, Russian Empire
Work period	18^th century date QS:P,+1750-00-00T00:00:00Z/7
Work location	Basel; Saint Petersburg; Berlin; Saint Petersburg (1727–); Berlin (1741–1766)
Authority file	: Q7604 VIAF: 24639786 ISNI: 0000000121245291 LCCN: n50010222 NLA: 35069249 MGP: 38586 Open Library: OL30028A GND: 118531379 SELIBR: 185712 SUDOC: 028115481 BNF: 12157666x NDL: 00652487 BIBSYS: 90743512 HDS: 018751 NKC: ola2002161287 SBN: VEAV019451 BNE: XX893649 CiNii: DA01184372 NLP: a0000001797210 J9U: 987007260793905171 Koninklijke: 069355770 NLK: KAC200901598 WorldCat

Portraits

Leonhard Euler aged 49 (oil painting by Emanuel Handmann, 1756)
Portrait of Leonhard Euler by Emanuel Handmann 1753

Stamps and currency

Swiss banknote featuring Euler
USSR stamp on Euler's 250th birthday.

Other related images

Euler's grave
Methodus inveniendi