Mathematician:Karl Wilhelm Feuerbach

Mathematician
German geometer best known for Feuerbach's Theorem.

Introduced homogeneous coordinates in $1827$, independently of. Suffered from mental illness, probably brought on by months of imprisonment as a student for political reasons, and died a recluse.

Nationality
German

History

 * Born: 30 May 1800 in Jena, Holy Roman Empire
 * Died: 12 March 1834 in Erlangen, Germany

Theorems

 * Feuerbach's Theorem
 * Feuerbach Circle

Publications

 * 1822: Eigenschaften einiger merkwürdigen Punkte des geradlinigen Dreiecks und mehrerer durch sie bestimmten Linien und Figuren. Eine analytisch-trigonometrische Abhandlung (Properties of some special points in the plane of a triangle, and various lines and figures determined by these points: an analytic-trigonometric treatment)


 * 1827: Grundriss zu analytischen Untersuchungen der dreyeckigen Pyramide (Foundations of the analytic theory of the triangular pyramid)