photo credits: CC-PD-Mark
country of citizenship:
German Confederation, German Empire
educated at: University of Bonn, University of Münster, University of Königsberg
occupation: mathematician, teacher, university teacher
award received: honorary degree, Copley Medal, Pour le Mérite for Sciences and Arts, Helmholtz Medal, Cothenius Medal, Bavarian Maximilian Order for Science and Art, Foreign Member of the Royal Society
Karl Theodor Wilhelm Weierstrass (German: Weierstraß [ˈvaɪ̯ɐʃtʁaːs]; 31 October 1815 – 19 February 1897) was a German mathematician often cited as the "father of modern analysis". Despite leaving university without a degree, he studied mathematics and trained as a teacher, eventually teaching mathematics, physics, botany and gymnastics.Weierstrass formalized the definition of the continuity of a function, proved the intermediate value theorem and the Bolzano–Weierstrass theorem, and used the latter to study the properties of continuous functions on closed bounded intervals.
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