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Friedrich Julius Richelot (6 November 1808 – 31 March 1875) was a German mathematician, born in Königsberg. He was a student of Carl Gustav Jacob Jacobi.

Friedrich Julius Richelot
Portrait on Richelot's tombstone
Born(1808-11-06)6 November 1808
Died31 March 1875(1875-03-31) (aged 66)
Königsberg, Prussia
Alma materUniversity of Königsberg
Scientific career
InstitutionsUniversity of Königsberg
Doctoral advisorCarl Gustav Jacob Jacobi
Doctoral studentsJoannes Meyer
Carl Neumann
Heinrich Schröter

He was promoted in 1831 at the Philosophical Faculty of the University of Königsberg with a dissertation on the division of the circle into 257 equal parts (see references) and was a professor there.

Richelot authored numerous publications in German, French and Latin, among them — with his 1832 dissertation — the first known guide to the Euclidean construction of the regular 257-gon with compass and straightedge.

In 1825 he joined the Corps Masovia.[1]

He died in Königsberg in 1875.


  1. ^ Kösener Korps-Listen 1910, 141, 8