Japán
This book is a comprehensive introduction to the soroban, a Japanese abacus used for calculation. Written by two experts in the field, it covers the history, theory, and practice of soroban, including techniques for addition, subtraction, multiplication, and division. The book also includes exercises and practice problems for readers to develop their skills. Whether you are a student of Japanese culture or an enthusiast of mathematics, this book is sure to be an engaging and informative read.
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.
This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.
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