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The slide rule

By Charles N. Pickworth
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Engineering & TechnologyHow To ...Mathematics

About This Book

The manual defines the slide rule as an instrument for performing calculations by means of logarithms and provides a concise primer on common logarithms, mantissa and characteristic. It explains the mathematical principle that adding and subtracting logarithms yields products and quotients, and extends this to powers, roots, and trigonometric and algebraic operations. Practical instruction covers the layout and use of scales, slide and cursor, magnifying cursors and special rule types, with examples of routine procedures such as multiplication, division, square and root extraction, and proportional calculations. Descriptions of specialized instruments and applications include engineering tasks like screw-cutting and gear calculations, together with advice on accuracy and practice.

About the Author

Pickworth, Charles N. portrait

Charles N. Pickworth

Charles N. Pickworth is an author recognized for his contributions to the field of mathematics and engineering, particularly through his notable work, "The Slide Rule." This book serves as a practical guide to the use of the slide rule, an essential tool for calculations before the advent of electronic calculators. Pickworth's writing reflects a deep understanding of mathematical principles and their applications, making his work valuable for students and professionals alike. His insights into the mechanics of the slide rule have helped to preserve the knowledge of this important calculating instrument.

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