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Advanced Abacus

Author: Takashi Kojima
Publisher: Tuttle Publishing
ISBN: 1462903657
Size: 73.48 MB
Format: PDF, ePub, Docs
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This handy guide will take abacus users from beginner to master level in a very short time. Though the Japanese abacus may appear mysterious or even primitive, this intriguing tool is capable of amazing speed and accuracy. it is still widely used throughout the shop and markets of Asia and its popularity shows no sign of decline. This volume is designed for the student desiring a greater understanding of the abacus and its calculative functions. The text provides thorough explanations of the advanced operations involving negative numbers, decimals, different units of measurement, and square roots. Diagrams illustrate bead manipulation, and numerous exercises provide ample practice. Concise and easy-to-follow, this book will improve your abacus skills and help you perform calculations with greater efficiency and precision.

The First Ninety Years

Author: Lluís Feliu
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 1501503677
Size: 41.59 MB
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This volume is dedicated to Miguel Civil in celebration of his 90th birthday. Civil has been one of the most influential scholars in the field of Sumerian studies over the course of his long career. This anniversary presents a welcome occasion to reflect on some aspects of the field in which he has been such a driving force.

Medieval Science Technology And Medicine

Author: Thomas F. Glick
Publisher: Psychology Press
ISBN: 9780415969307
Size: 70.35 MB
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Demonstrates that the millennium from the fall of the Roman Empire to the flowering of the Renaissance was a period of great intellectual and practical achievement and innovation. This reference work will be useful to scholars, students, and general readers researching topics in many fields of study, including medieval studies and world history.