Portrait of Leonhard Euler
. Jakob Emanuel Handmann, 1753; Kunstmuseum Basel, inventory 276; reproduction cropped from Euler-2007 document. Public domain (life-plus-100, pre-1931 U.S. publication) and faithful reproduction / PD-Art. Source and usage information on the linked Wikimedia file page. Source.
Leonhard Euler was an influential Swiss mathematician, physicist, and engineer, born on April 15, 1707, and passed away on September 17, 1783. He made significant contributions to a wide variety of areas in mathematics, including calculus, graph theory, topology, mechanics, fluid dynamics, number theory, astronomy, and music theory. Euler is known for his prolific output, having published over 800 works during his lifetime.
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