“Now I will have fewer distractions.”
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Leonhard Euler
Leonhard Euler was a Swiss polymath who was active as a mathematician, physicist, astronomer, logician, geographer, music theorist 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 termin…
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science · Swiss mathematician (1707–1783) · mathematician · physicist · university teacher · writer · music theorist · astronomer · scientist · inventor · executive · geographer · also Leonhard Euler, Euler, Leonhard, L. Euler, Euler
Born 15 April 1707 · Died 18 September 1783 · Q7604
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2026· 8 entries
Public attention spiked: 4,693 Wikipedia readers in one day, 3× the usual 1,553, with 3 article edits. Editors noted: Sources clean up, removed deprecated |citeseerx= parameters;
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Public attention spiked: 4,693 Wikipedia readers in one day, 3.2× the usual 1,449, with 3 article edits. Editors noted: Sources clean up, removed deprecated |citeseerx= parameters;
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Moneycontrol.com: Quote of the Day by Leonhard Euler: "Nothing takes place in the world..." - A timeless lesson on...
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Moneycontrol: Quote of the Day by Leonhard Euler: "Nothing takes place in the world..." - A timeless lesson on purpose, balance and the pursuit of excellence
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The Economic Times: Quote of the day by famous Swiss mathematician and physicist Leonhard Euler: “Nothing takes place in the world whose meaning...” - A timeless lesson on purpose, balance and ...
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Public attention spiked: 14,106 Wikipedia readers in one day, 9.1× the usual 1,553, with 2 article edits. Editors noted: Reverted 1 edit by ~2026-31385-39 (talk): == unsourced
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spektrum.de: Buchkritik zu »Leonhard Euler (1707–1783)«
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2022· 1 entry
To publish its remaining projected volumes in Series IV in online format only
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2013· 9 entries
The Guardian: Leonhard Euler honoured by Google doodle on 306th birthday
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The Christian Science Monitor: Leonhard Euler: Prolific writer, pioneering mathematician, and theorist nonpareil
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Christian Science Monitor: Leonhard Euler: Prolific writer, pioneering mathematician, and theorist nonpareil
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Christian Science Monitor: Leonhard Euler, his famous formula, and why he's so revered
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Süddeutsche Zeitung: Leonhard Euler macht Pendler glücklich: Google-Doodle-Wissen
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Morgenpost: Leonhard Euler - Google ehrt den Begründer der Analysis
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The Guardian: Leonhard Euler, longitude winner
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Los Angeles Times: Leonhard Euler, math genius, gets a Google Doodle
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welt.de: Leonhard Euler: Wahrer Erfinder des Sudoku war ein Schweizer
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1988· 1 entry
“Original title: Introductio in analysin infinitorum. Translated as Introduction to Analysis of the Infinite (1988–89) by John Blanton (Book I ISBN 0387968245; Book II ISBN 0387971327 (online version).”
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1969· 1 entry
“Upon losing the use of his right eye; as quoted in In Mathematical Circles (1969) by H. Eves”
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1957· 1 entry
To commemorate the 250th anniversary of his birth, his tomb was moved to the Lazarevskoe Cemetery at the Alexander Nevsky Monastery
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1954· 2 entries
“Opera Omnia, ser. 1, vol. 2, p. 241, as quoted by George Pólya, Induction and Analogy in Mathematics Vol. 1, Mathematics and Plausible Reasoning (1954) and by Pólya in "Heuristic Reasoning in the Theory of Numbers" The American Mathematical Monthly Vol. 66, No. 5 (May, 1959), p. 375.”
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“Opera Omnia, ser. 1, vol. 2, p. 459 Spcimen de usu observationum in mathesi pura, as quoted by George Pólya, Induction and Analogy in Mathematics Vol. 1, Mathematics and Plausible Reasoning (1954)”
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1950· 1 entry
“The Foremost Textbook of Modern Times”
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1946· 1 entry
Published “Observations on the Pulmonary Arterial Blood Pressure in the Cat” in Acta Physiologica Scandinavica — cited 1,034 times.
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1936· 2 entries
Published “Folgerungen aus der Diracschen Theorie des Positrons” in Zeitschrift f�r Physik — cited 2,669 times.
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Published “Folgerungen aus der Diracschen Theorie des Positrons” in Zeitschrift f�r Physik — cited 2,655 times.
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1933· 1 entry
“introduction to De Curvis Elasticis, Additamentum I to his Methodus Inveniendi Lineas Curvas Maximi Minimive Proprietate Gaudentes 1744; translated on pg10-11, "Leonhard Euler's Elastic Curves", Oldfather et al 1933”
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1910· 1 entry
“Presidential Address British Association for the Advancement of Science”
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1907· 1 entry
The Swiss Academy of Sciences created the Euler Commission and charged it with the publication of Euler's complete works
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1860· 1 entry
“In Berlin, to the Queen Mother of Prussia, on his lack of conversation in his meeting with her, on his return from Russia; as quoted in Science in Russian Culture : A History to 1860 (1963) Alexander Vucinich”
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1837· 2 entries
The Russian Academy of Sciences installed a new monument, replacing his overgrown grave plaque
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“Sir, a + b n n = x {\displaystyle {\frac {a+b^{n}}{n}}=x} , hence God exists –reply!”
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1783· 26 entries
Died 1783-09-18.
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“(EN) To those who ask what the infinitely small quantity in mathematics is, we answer that it is actually zero. Hence there are not so many mysteries hidden in this concept as they are usually believed to be.”
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“La construction d'une machine propre à exprimer tous les sons de nos paroles , avec toutes les articulations , seroit sans-doute une découverte bien importante. … La chose ne me paroît pas impossible.”
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“essendo di nuovo venuta meno, con mio vivo dispiacere, la speranza di impartire a voce altre lezioni di geometria a Vostra Altezza, mi auguro di potervi rimediare per iscritto.”
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“It would be a considerable invention indeed, that of a machine able to mimic speech, with its sounds and articulations. … I think it is not impossible.”
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“Letter to Friederike Charlotte of Brandenburg-Schwedt (16 June 1761)”
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“Eulero calcolava senza sforzo apparente, così come gli uomini respirano o le aquile si sostengono nel vento. (attribuita a François Arago)”
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“Si legga Eulero: è il nostro maestro in tutto. (Pierre Simon Laplace)”
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“In questa branca delle matematiche [la teoria dei numeri] (a cui dedicò non meno di 148 memorie), Euler, pure traendo costante ispirazione dalle opere di Diofanto e Fermat, seppe imprimere un'orma indelebile, dando talora [...] prova di facoltà divinatrici veramente straordinarie, creando nuovi metodi, completando l'opera dei predecessori e persino antecipando di un secolo importanti scoperte.”
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“A function of a variable quantity is an analytic expression composed in any way whatsoever of the variable quantity and numbers or constant quantities.”
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“(EN) Now I will have less distraction.”
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“Now I will have less distraction.”
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“[Dopo aver perduto la vista dal suo occhio destro] Ora avrò minore occasione di distrazione.”
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“Variant: Madame... I have come from a country where one can be hanged for what one says.”
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“Nel mondo non accade nulla il cui significato non sia quello di qualche massimo o minimo.”
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“Lo scopo principale dell'algebra [...] è determinare il valore di quantità in precedenza incognite [...] considerando attentamente le condizioni date [...] espresse da numeri noti.”
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“Madam, I have come from a country where people are hanged if they talk.”
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“In generale la grandezza dell'ingegno non garantisce mai dall'assurdità delle opinioni abbracciate.”
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“(EN) Mathematicians have tried in vain to this day to discover some order in the sequence of prime numbers, and we have reason to believe that it is a mystery into which the human mind will never penetrate.”
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“Ci sono alcuni misteri che la mente umana non penetrerà mai. Per convincercene non dobbiamo fare altro che gettare un'occhiata alle tavole dei numeri primi. Ci accorgeremo che non vi regna né ordine né legge.”
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“I matematici hanno cercato invano fino a oggi di scoprire un qualche ordine nella sequenza dei numeri primi, e abbiamo ragione di credere che sia un mistero nel quale la mente umana non penetrerà mai.”
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“Mejor que de nuestro juicio, debemos fiarnos del cálculo algebraico.”
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“Lettres à une Princesse d'Allemagne sur différentes questions de physique et de philosophie, Royer, 1788, p. 265”
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“Per brevità indicheremo sempre questo numero, 2,718281828..., con la lettera e.”
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“To those who ask what the infinitely small quantity in mathematics is, we answer that it is actually zero. Hence there are not so many mysteries hidden in this concept as they are usually believed to be.”
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“Mathematicians have tried in vain to this day to discover some order in the sequence of prime numbers, and we have reason to believe that it is a mystery into which the human mind will never penetrate.”
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1766· 1 entry
Career landmark: professor (1766).
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1731· 1 entry
Career landmark: professor (1731–1741).
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1727· 1 entry
Career landmark: adjunct (1727–1730).
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1720· 1 entry
Studied at University of Basel (1720).
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1707· 1 entry
Born 1707-04-15.
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