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First developed during WW2, the Trachtenberg speed system makes possible high-speed arithmetical calcula tions with a remarkable degree of accuracy. The system has e ven been known to beat computer calculations - in some insta nces - in terms of speed '
Zakup książki
The Trachtenberg speed system of basic mathematics translated and adapted by Ann Cutler and Rudolph McShane, Ann Cutler, Rudolph McShane
- Język
- Rok wydania
- 1962
- Oprawa
- (twarda)
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- Tytuł
- The Trachtenberg speed system of basic mathematics translated and adapted by Ann Cutler and Rudolph McShane
- Język
- angielski
- Autorzy
- Ann Cutler, Rudolph McShane
- Rok wydania
- 1962
- Oprawa
- twarda
- Liczba stron
- 270
- ISBN10
- 0285626787
- ISBN13
- 9780285626782
- Seria
- Opis
- First developed during WW2, the Trachtenberg speed system makes possible high-speed arithmetical calcula tions with a remarkable degree of accuracy. The system has e ven been known to beat computer calculations - in some insta nces - in terms of speed '