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A slide rule scale is a line with graduated markings inscribed along the length of a slide rule used for mathematical calculations. The earliest such device had a single logarithmic scale for performing multiplication and division, but soon an improved technique was developed which involved two such scales sliding alongside each other.
For example, aligning the rightmost 1 on the C scale with 2 on the LL2 scale, 3 on the C scale lines up with 8 on the LL3 scale. To extract a cube root using a slide rule with only C/D and A/B scales, align 1 on the B cursor with the base number on the A scale (taking care as always to distinguish between the lower and upper halves of the A scale).
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.
For a complete list of all dimensions, see full list of units. {{Convert}} uses unit-codes , which are similar to, but not necessarily exactly the same as, the usual written abbreviation for a given unit.
Template:Convert • Invokes the module; some parameters can be used to configure the module. Module:Convert • Should not be changed. If a change appears desirable, please discuss first. Module:Convert/data • Unit definitions—must not be changed (see below). Module:Convert/text • Text for options and messages—should be changed.
In measurement, the Coggeshall slide rule, also called a carpenter's slide rule, was a slide rule designed by Henry Coggeshall in 1677 to help in measuring the dimensions, surface area, and volume of timber. With his original design and later improvements, Coggeshall's slide rule brought the tool its first practical use outside of mathematical ...
Template documentation For the unit conversion template, see Template:Convert . Editors can experiment in this template's sandbox ( create | mirror ) and testcases ( create ) pages.
There have been numerous issues of converting measurements, using Template:Convert, during 2008-2009. That template-family is becoming increasingly harder to update, due to the growing complexity of the 20-to-26 nested templates for each conversion, and the continual deletion of similar templates that could have been used to compare for errors.