The Trachtenberg speed system of basic mathematics
Trachtenberg, Jakow, 1888-19511999
Books, Manuscripts
First developed during WW2, the Trachtenberg speed system makes possible high-speed arithmetical calculations with a remarkable degree of accuracy. The system has even been known to beat computer calculations - in some instances - in terms of speed.
Main title:
The Trachtenberg speed system of basic mathematics / Jakow Trachtenberg ; translated and adapted by Ann Cutler and Rudolph McShane.
Imprint:
London : Souvenir, 1999.
Collation:
208p. ; 22 cm.
Notes:
This translation originally published: New York: Doubleday, 1960; London: Souvenir, 1962.Translated from the German.
ISBN:
9780285629165 (pbk)0285629166 (pbk)
Dewey class:
513.9513510
Language:
EnglishGerman
Subject:
BRN:
2108346