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Marionettes
" "Cambio de luz
books on outdoor survivals
covers etc
A History of Japanese Mathematics MarionettesOne of the first books to show Westerners the nature of Japanese mathematics, this survey highlights the leading features in the development of the wasan, the Japanese system of mathematics. Topics include the use of the soroban, or abacus; the application of sangi, or counting rods, to algebra; the discoveries of the 17th century sage Seki Kowa; the yenri, or circle principle; the work of 18th century geometer Ajima Chokuyen; and Wada Nei's
