Karl Wilhelm Feuerbach
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Karl_Wilhelm_Feuerbach.jpg
Karl_Wilhelm_Feuerbach.jpg
Karl Wilhelm Feuerbach.
Karl Wilhelm Feuerbach (30 May 1800-12 March 1834) was a German geometer. 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, independent of Möbius.
External link
- Feuerbach's Theorem: a Proof (http://www.cut-the-knot.org/Curriculum/Geometry/FeuerbachProof.shtml)de:Karl Wilhelm Feuerbach