Category:Leonhard Euler
 Family tree of Leonhard Euler (Q7604) (←)
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Swiss mathematician, physicist, and engineer (1707–1783)  Retrat d'Euler per Jakob Emanuel Handmann (1753).  | |||||
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| Date of birth | 15 April 1707 Basel (canton of Basel, Old Swiss Confederacy) | ||||
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See also category: Beam theory.Leonhard Euler (15 April 1707 – 18 September 1783) was a Swiss polymath who was active as a mathematician, physicist, astronomer, logician, geographer, and engineer. He founded the studies of graph theory and topology and made influential discoveries in many other branches of mathematics, such as analytic number theory, complex analysis, and infinitesimal calculus. He also introduced much of modern mathematical terminology and notation, including the notion of a mathematical function. He is known for his work in mechanics, fluid dynamics, optics, astronomy, and music theory. Euler has been called a "universal genius" who "was fully equipped with almost unlimited powers of imagination, intellectual gifts and extraordinary memory". He spent most of his adult life in Saint Petersburg, Russia, and in Berlin, then the capital of Prussia. Euler is regarded as arguably the most prolific contributor in the history of mathematics and science, and the greatest mathematician of the 18th century.
On 7 January 1734, Euler married Katharina Gsell, daughter of Georg Gsell, a painter at the Academy Gymnasium in Saint Petersburg. The couple bought a house by the Neva River. The couple had thirteen children in just sixteen years, but only five of them lived to adulthood, three sons and two daughters:
- Johann Albrecht Euler (November 27, 1734 - September 18, 1800)
- Anna Margaretha Euler (May 28, 1736 - July 02, 1736), who died in infancy
- Maria Gertrude Euler (April 28, 1737 - March 03, 1739), who died in early childhood
- Anna Elisabeth Euler (October 25, 1739 - November 08, 1739), who died in infancy
- Karl Johann Euler (July 15, 1740 - March 16, 1790), who married Anna Emilia von Bell. They had five surviving children.
- Catharina Helena Euler (November 15, 1741 - May 04, 1781), who married Karl Joseph von Bell. They had two surviving children, and she died just over a week after giving birth to her last child.
- Johann Christophorus Euler (May 01, 1743 - February 24, 1808), a Lieutenant-General who married Anna Wilhelmine Christine von Krabbe. They had seven surviving children.
- Charlotte Euler (July 12, 1744 - February 13, 1780), who married Johan Jacob van Delen. They had seven surviving children.
- Unnamed child (1745?), who was stillborn or died shortly after birth
- Hermann Friedrich Euler (May 08, 1747 - December 12, 1750), who died in early childhood
- Erthmuth Louise Euler (April 13, 1749 - August 09, 1749), twin of Helene Eleonora, who died in infancy
- Helene Eleonora Euler (April 13, 1749 - August 11, 1749), twin of Erthmuth Louise, who died in infancy
- August Friedrich Euler (March 20, 1750 - August 10, 1750), who died in infancy
Three years after his wife's death in 1773, Euler married her half-sister, Salome Abigail Gsell. This marriage lasted until his death in 1783.
Subcategories
This category has the following 25 subcategories, out of 25 total.
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- 2002 Euler (2 F)
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- Euler (crater) (16 F)
- Euler beta function (4 F)
- Euler column (2 F)
- Euler line (28 F)
- Euler method (44 F)
- Euler's theorem in geometry (10 F)
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- Leonhard Euler grave (7 F)
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- Leonhard Euler Telescope (25 F)
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- Maps by Leonhard Euler (8 F)
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- Leonhard Euler on stamps (11 F)
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Pages in category "Leonhard Euler"
The following 2 pages are in this category, out of 2 total.
Media in category "Leonhard Euler"
The following 122 files are in this category, out of 122 total.
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De-Leonhard Euler.ogg 2.1 s; 20 KB
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Diagramme d'Euler d'un syllogisme en Cesare.png 400 × 200; 6 KB
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Elements of algebra (IA elementsofalgebr00eule).pdf 647 × 1,156, 638 pages; 30.88 MB
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Extrait d'une lettre de M. Euler le Pere à M. Bernoulli.jpg 1,000 × 1,361; 138 KB
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Gedenktafel für Leonhard Euler (1707–1783), Dorfkirche Sankt Martin. Riehen, Schweiz.jpg 1,290 × 1,760; 1.67 MB
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Leonhard Euler. Line engraving by T. Cook, 1787, after E. Ha Wellcome V0001801.jpg 2,100 × 3,391; 3.2 MB
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Leonhardt Euler - Christian von Mechel d'après Emmanuel Handmann - btv1b8417581p.jpg 2,616 × 4,352; 2.57 MB
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Letter from Leonhard Euler to Kaspar Wettstein, 1752 Wellcome L0037505.jpg 3,498 × 4,026; 2.52 MB
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Letter from Leonhard Euler to Kaspar Wettstein, 1755 Wellcome L0037509.jpg 3,432 × 3,966; 2.1 MB
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Methodus inveniendi - Leonhard Euler - 1744.jpg 2,715 × 3,763; 1.79 MB
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Opera Omnia Euler.I.1..ocr.pdf 1,243 × 1,843, 748 pages; 38.32 MB
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Pièces qui ont remporté les deux prix.tome 4.djvu 2,353 × 3,056, 612 pages; 72.81 MB
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The Early Mathematics of Leonhard Euler - Flickr - brewbooks.jpg 3,264 × 2,448; 3.62 MB
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Euler - Exposé concernant l'examen de la lettre de M. de Leibnitz alleguée par M. le Prof. Koenig.djvu 3,000 × 3,885, 13 pages; 766 KB
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Categories:
- Euler (surname)
- Leonhard (given name)
- 1707 births
- 1783 deaths
- Men of the Kingdom of Prussia by name
- Deaths from cerebral hemorrhage
- 76-year-old deaths
- 18th-century men of Switzerland
- Mathematicians from Switzerland
- People of Saint Petersburg by name
- Number theorists
- Fluid dynamicists
- Mental calculators
- Births in Basel
- House of Euler