By Takashi Kojima
Basic and primitive notwithstanding it look, the japanese abacus is able to extraordinary velocity and accuracy. in different exams it has outclassed the easiest electrical desktops of the Western global. the following for the 1st time in English is either a proof of the secret and an entire e-book of guide for using this striking pocket calculator.
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Additional resources for The Japanese Abacus: Its Use and Theory
The Abacus examine Institute of the Japan Chamber of trade and has been such a lot happy to cooperate with him by means of making on hand its study information and correcting his manuscript within the mild of the entire most recent info.