Karl Longin Zeller

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Karl Longin Zeller (December 28, 1924, Šiauliai, Lithuania – July 20, 2006, Tübingen) was a German mathematician and computer scientist who worked in numerical analysis and approximation theory.[1] He is the namesake of Zeller operators.

Zeller was drafted into the German army, and lost his right arm on the Soviet front of World War II.[1] He earned his Ph.D. from the University of Tübingen in 1950, under the supervision of Konrad Knopp and Erich Kamke,[2] and remained at Tübingen for most of his career as a professor and as director of the computer center. He left Tübingen in 1959 for a professorship in Stuttgart but returned to Tübingen in 1960 with a personal chair in "the mathematics of supercomputer facilities" (German: Mathematik der Hochleistungsrechenanlagen), making him one of the founders of computer science in Germany.[1] He has over 200 academic descendants.[2]

In 1993, he was given an honorary doctorate by the University of Siegen.[1]


  1. ^ a b c d Salzmann, Helmut (October 25, 2006), "Professor Dr. Dr. h.c. Karl Zeller", Tübinger Universitäts Nachrichten (in German), 26 (130): 7.
  2. ^ a b Karl Longin Zeller at the Mathematics Genealogy Project