Karl Weierstrass

Karl Theodor Wilhelm Weierstrass (; German: Weierstraß [ˈvaɪɐʃtʁaːs]; 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 school teacher, eventually teaching mathematics, physics, botany and gymnastics. He later received an honorary doctorate and became professor of mathematics in Berlin.

Among many other contributions, Weierstrass formalized the definition of the continuity of a function and complex analysis, 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.

Notable works: list of things named after Karl Weierstrass Awards: honorary doctor of the University of Königsberg, Copley Medal, Pour le Mérite for Sciences and Arts order, Helmholtz Medal, Cothenius Medal, Bavarian Maximilian Order for Science and Art, Foreign Member of the Royal Society Education: University of Bonn, University of Münster, Gymnasium Theodorianum, University of Königsberg

Source: Wikipedia — https://en.wikipedia.org/wiki/Karl_Weierstrass