Logarithmic slide rule

Logarithmic slide rule

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Caption: Logarithmic slide rule. This adjustable ruler contains the values for logs, which are used to aid multiplication and division. Logarithms are mathematical functions relating numbers to the powers of a set base number such as ten. Slide-rules have been superseded by the use of electronic calculators.

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Keywords: adjustable, calculating, calculations, exponential, historical, history, log, logarithm, logarithmic, logarithms, logs, mathematical, mathematics, maths, methods, number, numbers, ruler, slide rule, slide-rule, still life, still-life

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