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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.
This is a composite gallery of simulated slide rules that may be manipulated on your screen by use of your mouse, as if the slide rule is actually in your hand. The Aristo models have readouts to show the value under the cursor.
Jun 7, 2023 · 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. But after you learn about it, you...
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A slide rule is a way of doing complicated division or multiplication quickly by comparing positions and markings on a pair of rulers. The rulers aren’t like a normal ruler in that they are marked logarithmically.
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 two very basic 1976 calculators on the right, a U.S. TI-1270 and a Japanese Canon 8M, both meet the minimum requirements to be a slide rule. The canon has a square root key and memory functions. The TI has square root, square and inverse functions.
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.
Oct 22, 2014 · 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 roots, and...
The Fuller calculator, sometimes called Fuller's cylindrical slide rule, is a cylindrical slide rule with a helical main scale taking 50 turns around the cylinder. This creates an instrument of considerable precision – it is equivalent to a traditional slide rule 25.40 metres (1,000 inches) long.
Handheld Electronic Calculators. The predominant calculating aid for nearly three centuries, the slide rule came together gradually as mathematicians used Napier's logarithms in their instruments. Slide rules came in many shapes and sizes, with different rulings suited to their specific application.
