The Trachtenberg Speed System of Basic Mathematics

Cutler Ann McShane Rudolph

ISBN 10: 0285629166 / ISBN 13: 9780285629165

Edité par Souvenir Press Ltd.

A propos de cet article

pp. 270.

N° de réf. du vendeur 7859356

Détails bibliographiques

• Titre: The Trachtenberg Speed System of Basic Mathematics
• Éditeur: Souvenir Press Ltd.
• ISBN à 10 chiffres: 0285629166
• ISBN à 13 chiffres: 9780285629165
• Reliure: Couverture souple
• État de l'article: New

A propos de ce titre

Synopsis

Do high-speed, complicated arithmetic in your head using the Trachtenberg Speed System.

À propos de l?auteur

Jakow Trachtenberg was a Jewish mathematician who developed the mental calculation techniques called the Trachtenberg system. He was born in Odessa, the Russian empire in 1988 and worked as an engineer in the Obukhov arms factory. He was a dedicated pacifist and instrumental in organising the Society of Good Samaritans when the First World War broke out. After the Russian revolutions of 1917, Trachtenberg fled to the Weimar Republic where he was later critical of Nazi policies and imprisoned in a concentration camp during World War II. He developed his system of mathematics during his imprisonment. He died in 1953.