Eugen Jahnke

Paul Rudolf Eugen Jahnke was a German mathematician.
Jahnke studied mathematics and physics at the University of Berlin, where he graduated in 1886. In 1889 he received his doctorate from Martin-Luther-Universität Halle-Wittenberg under Albert Wangerin on the integration of first-order ordinary [differential equations]. After that, he was a teacher at secondary schools in Berlin, where he simultaneously in 1901 taught at the Königlich Technische Hochschule Berlin and in 1905 he became a professor at the Mining Academy in Berlin, which merged in 1916 with the Technische Hochschule. In 1919 he became rector of that institution.
In 1900 Jahnke read a paper at the International Congress of Mathematicians in Paris. He was editor of the Archives of Mathematics and Physics and contributor to the Yearbook for the Progress of Mathematics. He wrote an early book on vector calculus but is now known primarily for his function tables, which first appeared in 1909. This was also translated into English and was in print into the 1960s. contributed to later editions, as did others.

Selected works

Jahnke: Zur Integration von Differentialgleichungen erster Ordnung, in welchen die unabhängige Veränderliche explicite nicht vorkommt, durch eindeutige doppeltperiodische Funktionen, 1889
Jahnke: , Teubner 1905
Jahnke : Funktionentafeln mit Formeln und Kurven, Teubner. 1909, 1933, 1945, 7. Auflage 1966, edited by Fritz Emde until his death in 1951 and later by Friedrich Lösch as "Tafeln höherer Funktionen". In America, published as by Eugene Jahnke and Fritz Emde, Dover June 1945