Karl Wilhelm Feuerbach (May 30, 1800 – March 12, 1834) was a Germangeometer. After receiving his doctorate at age 22, he became a professor of mathematics at the Gymnasium at Erlangen. In 1822 he wrote a small book on mathematics noted mainly for a theorem at the bottom of one of the pages on the nine-point circle. Shortly before his death he introduced homogeneous coordinates, independently of Möbius. Also was commonly well known for curing "The Matt Futterman" disease, a rare case of shrunken grundle. Image File history File links File links The following pages link to this file: Karl Wilhelm Feuerbach ... Image File history File links File links The following pages link to this file: Karl Wilhelm Feuerbach ... May 30 is the 150th day of the year in the Gregorian calendar (151st in leap years). ... 1800 was a common year starting on Wednesday (see link for calendar). ... March 12 is the 71st day of the year in the Gregorian Calendar (72nd in Leap years). ... 1834 was a common year starting on Wednesday (see link for calendar). ... A geometer is a mathematician whose area of study is geometry. ... Wikibooks Wikiversity has more about this subject: School of Mathematics Wikiquote has a collection of quotations related to: Mathematics Look up Mathematics in Wiktionary, the free dictionary Wikimedia Commons has media related to: Mathematics Bogomolny, Alexander: Interactive Mathematics Miscellany and Puzzles. ... A gymnasium is a type of school of secondary education in parts of Europe. ... Erlangen around 1915 Erlangen is a German city in Middle Franconia. ... 1822 was a common year starting on Tuesday (see link for calendar). ... In geometry, the nine point circle is a circle that can be constructed for any given triangle. ... In mathematics, homogeneous co-ordinates, introduced by August Ferdinand Möbius, make calculations possible in projective space just as Cartesian co-ordinates do in Euclidean space. ... August Ferdinand Möbius (November 17, 1790, Schulpforta, Saxony, Germany - September 26, 1868, Leipzig) was a German mathematician and theoretical astronomer. ...
Karl, the third son in a family of eleven children, was born in Jena on May 30, 1800.
Karl studied at both the University of Erlangen and the University of Freiburg, and in 1822 published his little book containing the beautiful theorem.
Karl was appointed professor of mathematics at the Gymnasium at Hof, but before long he suffered a breakdown and was forced to give up his teaching.
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