Google has honoured Leonhard Euler, one of the greatest mathematicians of all times, on his 360th birth anniversary with its mathematical doodle on homepages across the world.
Here are the points you should know about one of the greatest mathematicians of all time history.
Leonhard Euler born on April 15, 1707
He was a pioneering Swiss mathematician and physicist who made important discoveries in fields as diverse as infinitesimal calculus and graph theory.
He is also renowned for his work in mechanics, fluid dynamics, optics, and astronomy.
Euler spent most of his adult life in St. Petersburg, Russia, and in Berlin, Prussia.
He is considered to be the preeminent mathematician of the 18th century, and one of the greatest mathematicians to have ever lived.
Euler worked in almost all areas of mathematics: geometry, infinitesimal calculus, trigonometry, algebra, and number theory, as well as continuum physics, lunar theory and other areas of physics.
Euler is the only mathematician to have two numbers named after him: the immensely important Euler’s Number in calculus, e, approximately equal to 2.71828, and the Euler-Mascheroni Constant γ (gamma) sometimes referred to as just “Euler’s constant”, approximately equal to 0.57721. It is not known whether γ is rational or irrational.
Euler is also credited with using closed curves to illustrate syllogistic reasoning (1768). These diagrams have become known as Euler diagrams.
On January 7, 1734, he married Katharina Gsell, a daughter of Georg Gsell, a painter from the Academy Gymnasium.
The young couple bought a house by the Neva River.
Of their thirteen children, only five survived childhood.
He died on September 18, 1783