Karl Weierstrass
Scientist
Karl Theodor Wilhelm Weierstrass (German: Weierstraß; 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, and used it and the concept of uniform convergence to prove the Bolzano–Weierstrass theorem and Heine–Borel theorem.
Personal facts
| Birth date | October 31, 1815 |
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| Birth place | Ennigerloh , Westphalia , Kingdom of Prussia , Province of Westphalia , Osterrönfeld |
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| Date of death | February 19, 1897 |
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| Place of death | Berlin , Germany , Kingdom of Prussia , Province of Brandenburg |
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