(October 31, 1815 – February 19, 1897)

Despite his son’s intelligence and love for mathematics, Karl Weierstrass’ father insisted that he study law and finance in order to chart a career in administration. This contributed to the dismayed student’s waywardness. He indulged more in revelry than in studying. Consequently, he dropped out of University of Bonn without any conferral. But while working as secondary school tutor, he devoted himself to advanced mathematics: proving theorems and publishing panoplies of monographs which stunned the mavens of his era. Chief among these publications centered on Abelian Functions. It appeared in the prestigious Crelle’s Journal in early 1854. And in recognition, the Koenigsberg University awarded him an honorary doctorate degree, while the Berlin Technical University offered him lectureship. In this capacity, Karl Weierstrass emulated Augustin-Louis Cauchy’s efforts by focusing on the soundness of calculus. He consolidated the Calculus of Variations and used rigorous proofs to bolster numerous Analytical theorems. Brilliant and meticulous, his reputation quickly soared. After refining the precursory works of Legendre, Bolzano, Cauchy, Gudermann and Dirichlet, he expanded those of Abel and Jacobi. His obsession with rigor ensured that his analyses were deep and detailed. This led to him being called the “Father of modern Analysis”. In addition to publishing voluminous articles, Weierstrass supervised notable collegians like: Georg Cantor, Ferdinand Frobenius, Lazarus Fuchs, Hermann Schwarz and Sofya Kovalevskaya. With regards to 19th century’s ace mathematicians, he ranks amongst the finest. His eponymous monuments include: the 14100 Weierstrass asteroid, the 31-kilometer-wide Weierstrass lunar crater, and the Weierstrass Institute (in Berlin).

 

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