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10 unusual facts about Leonhard Euler


Chess puzzle

Many famous mathematicians have studied such problems, including Euler, Legendre, and Gauss.

Conversion between quaternions and Euler angles

Actually this simple use of "quaternions" was first presented by Euler some seventy years earlier than Hamilton to solve the problem of magic squares.

Euler Society

The Euler Society is an American group that is dedicated to the examination of the life and work of Leonhard Euler.

Euler–Lotka equation

The field of mathematical demography was largely developed by Alfred J. Lotka in the early 20th century, building on the earlier work of Leonhard Euler.

Mathematical chess problem

Many famous mathematicians studied mathematical chess problems, for example, Euler, Legendre and Gauss.

Oyler

Leonhard Euler, a Swiss mathematician whose name is pronounced as 'OY-ler'

Statics

The concept was introduced by Leonhard Euler in his 1765 book Theoria motus corporum solidorum seu rigidorum; he discussed the moment of inertia and many related concepts, such as the principal axis of inertia.

Strimko

It is based on an idea of Latin squares described by the mathematician Leonhard Euler in the 18th century.

Track transition curve

Several late-19th century civil engineers seem to have derived the equation for this curve independently (all unaware of the original characterization of this curve by Leonhard Euler in 1744).

Triple junction stability

By assuming that plates are rigid and that the earth is spherical, Leonhard Euler’s theorem of motion on a sphere can be used to reduce the stability assessment to determining boundaries and relative motions of the interacting plates.


Acta Eruditorum

Since its inception many eminent scientists published there – apart from Leibniz, e.g., Jakob Bernoulli, Humphry Ditton, Leonhard Euler, Ehrenfried Walther von Tschirnhaus, Pierre-Simon Laplace and Jérôme Lalande but also humanists and philosophers as Veit Ludwig von Seckendorff, Stephan Bergler, Christian Thomasius and Christian Wolff.

Analytic combinatorics

Many precursors of these ideas can be listed, among which Leonhard Euler, Arthur Cayley, Srinivasa Ramanujan, George Pólya, Donald Knuth.

Christian Goldbach

After finishing his studies he went on long educational voyages from 1710 to 1724 through Europe, visiting other German states, England, Holland, Italy, and France, meeting with many famous mathematicians, such as Gottfried Leibniz, Leonhard Euler, and Nicholas I Bernoulli.

Gamma function

The problem of extending the factorial to non-integer arguments was apparently first considered by Daniel Bernoulli and Christian Goldbach in the 1720s, and was solved at the end of the same decade by Leonhard Euler.

Pietro Mengoli

In 1644 it was Mengoli who first posed the famous Basel problem, solved in 1735 by Leonhard Euler.

Plane partition

This formula may be viewed as the 2-dimensional analogue of Euler's product formula for the number of integer partitions of n.

Smolensky Lutheran Cemetery

This cemetery contained the burials of the parishioners of the Evangelical Lutheran Church of Saint Katarina and the Catholic Church of St. Catherine, including Leonhard Euler, Xavier de Maistre, Germain Henri Hess, José de Ribas, Moritz von Jacobi, Agustín de Betancourt, Jean-François Thomas de Thomon, Ludvig Nobel, Fyodor Litke, Georg Friedrich Parrot, Karl Nesselrode, and Vladimir Lamsdorf.

Statistical geography

One of the first papers in topology was the demonstration, by Leonhard Euler, that it was impossible to find a route through the town of Königsberg (now Kaliningrad) that would cross each of its seven bridges exactly once.

Young's modulus

However, the concept was developed in 1727 by Leonhard Euler, and the first experiments that used the concept of Young's modulus in its current form were performed by the Italian scientist Giordano Riccati in 1782, pre-dating Young's work by 25 years.