1930
by Gerschgorin, S.
1930. Gerschgorin, S. Ein Apparat zur mechanischen Ausführung der konformen Abbildung = 1/2 (z + r2/z). Offprint from Zeitschrift für Flugtechnik und Motorluftschiffart 15 (1930). Original pink printed wrappers. Very good. 7 [1]pp. Text illustrations. 210 x 150 mm. Provenance: Theodore von Kármán, with his characteristic docketing . Describes an analog apparatus similar to a planimeter for calculating the equation cited in the title. Origins of Cyberspace 304. . (Inventory #: 44660)