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Hand -operated mechanical calculator
- A slide rule is a hand -operated mechanical calculator consisting of slidable rulers for evaluating mathematical operations such as multiplication, division, exponents, roots, logarithms, and trigonometry. It is one of the simplest analog computers.
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A slide rule is a hand -operated mechanical calculator consisting of slidable rulers for evaluating mathematical operations such as multiplication, division, exponents, roots, logarithms, and trigonometry. It is one of the simplest analog computers. [1] [2]
Jun 7, 2023 · Reviewed by Grace Imson, MA. Last Updated: June 7, 2023 Fact Checked. To someone who doesn't know how to use it, a slide rule looks like a ruler designed by Picasso. There are at least three different scales, and on most of them the numbers aren't even spaced evenly apart.
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slide rule, a device consisting of graduated scales capable of relative movement, by means of which simple calculations may be carried out mechanically. Typical slide rules contain scales for multiplying, dividing, and extracting square roots, and some also contain scales for calculating trigonometric functions and logarithms.
- The Editors of Encyclopaedia Britannica
The slide rule also does not tell you the sign of your result. Compared to a calculator, a slide rule is severely limited in its accuracy. You can enter and read a number typically to two or three decimal digits only. Scales. All other scales on a slide rule are referenced to the C and D scales. Following is a list of scales commonly found on ...
In its simplest form, the slide rule adds and subtracts lengths in order to calculate a total distance. But slide rules can also handle multiplication and division, find square...
Dec 16, 2022 · The most eye-catching slide rule in the collection is the Fuller Calculator, or Fuller’s Cylindrical Slide Rule, three of which stand proudly at a 60-degree angle attached to the side of their mahogany cases on the top shelf of the display.
Because of all of its scales and features, a slide rule really is a full scientific calculator for all types of multiplication and division problems. Some, but not all graphics in this Instructable do utilize text boxes. They are not always easy to see because the N600-ES slide rule used an eye saver (ES) yellow and black color scheme.
