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The New International Encyclopædia/Steiner, Jakob

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STEINER, stī'nẽr, Jakob (1796-1863). A Swiss mathematician, born at Utzenstorf, near Solothurn. He studied at Heidelberg, gave private instruction in Berlin, and in 1834 was made assistant professor in the university and member of the Academy of Sciences. Steiner's chief work is the Systematische Entwicklung der Abhängigkeit geometrischer Gestalten (1832; in the Ostwald Classics, 1896). He also wrote: Die geometrischen Konstruktionen ausgeführt mittels der geraden Linie und eines festen Kreises (1833; in the Ostwald Classics, 1895). His Vorlesungen über synthetische Geometrie (3d ed. 1887) and his Gesammelte Werke (1881-82) appeared posthumously. Consult Graf, Der Mathematiker Jakob Steiner von Utzenstorf (Bern, 1897).