His reputation as a mathematician had become established by 1834 and an honorarydoctorate was conferred upon him by the University of Bonn. His work appeared in Gergonne's "Annales des Mathématiques," vols. xi. and xvi. (1820-25); in Crelle's "Journal," vols. v., vii., viii., and ix. (1830-32); in the third part (1833) of Meier Hirsch's "Sammlung Geometrischer Aufgaben"; and in "Sammlung von Aufgaben und Lehrsätzen aus der Analytischen Geometrie des Raumes" (published in 1837, written earlier).
He was a German Jew who studied Euclid while working in his uncle's bank. From 1813 to 1815 he served as a gunner in the Napoleonic Wars. After the war he returned to banking and taught mathematics until 1834, when the founder of the academy he was teaching at died. He then left teaching and spent 9 years as the head revenue officer for Berliner Kassenverein, retiring in 1843.
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