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"The slide rule is a mechanical analog computer. The slide rule is used primarily for multiplication and division, and also for "scientific" functions such as roots, logarithms and trigonometry, but is not normally used for addition or subtraction."—Wikipedia article on "Slide rule"

This activity has "C" and "D" sliders with natural logarithm markings for doing multiplication and division and an "A" slider for calculating square roots.

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Version 35 — August 17, 2013 — 99 KB

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