Weierstrass, Karl (Theodor Wilhelm)[viyershtrahs]
Mathematician, "the father of modern analysis', born in Ostenfelde, Germany. A failed law student from Bonn, he took a teacher's certificate at Münster and taught mathematics in secondary schools (1842--56) while working privately on analysis. The publication of his memoir on Abelian functions (1854) brought him an honorary doctorate and a post at the Royal Polytechnic School, Berlin. He published relatively little, but became famous for his lectures, in which he gave a systematic account of analysis with previously unknown rigour, inspiring many of his students to become creative mathematicians.