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Scales (Slide Rule): Difference between revisions
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Set first of pictures to illustrate operation. (linear scales)
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(Set first of pictures to illustrate operation. (linear scales)) |
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== How to Read Scales == | == How to Read Scales == | ||
The operations of a slide rule are performed by adding physical lengths together between scales to find results. This is best illustrated through simple "linear" scales (such as those found on standard rulers, or the "number line" learned from elementary school). Taking two copies of the number line (of the same size) and laying them next to each other, it is possible to use the physical properties of the scale to add without any extra manipulation. Labeling the two scales "X" and "Y," we can observe an example: | The operations of a slide rule are performed by adding physical lengths together between scales to find results. This is best illustrated through simple "linear" scales (such as those found on standard rulers, or the "number line" learned from elementary school). Taking two copies of the number line (of the same size) and laying them next to each other, it is possible to use the physical properties of the scale to add without any extra manipulation. Labeling the two scales "X" and "Y," we can observe an example: | ||
[[File:Linear scales.jpg|thumb|The lower scale set at 2 on the upper scale, showing 3 opposite 5]] | |||
<syntaxhighlight> | <syntaxhighlight> | ||
2 + 3 = 5 | 2 + 3 = 5 | ||