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Keuffel & Esser - 4081 - Log Log Duplex Decitrig Manual
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Keuffel & Esser - 4081 - Log Log Duplex Decitrig Manual
This manual was written for the K+E 4081 series of rules but it covers most of the variations on that model, a number
of these models can be seen at my Keuffel & Esser page.
- Author: Lyman M Kells, Willis F Kern, James R Bland
- Copyright Date: 1943
- Pages: 102
- Condition: Fair, name and slight marks on cover
This manual is an earlier version of the one available for download.
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Contents
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Contents:
| 1 |
Multiplication and Division |
| 2 |
The Proportion Principle and Combined Operations |
| 3 |
Squares and Square Roots, Cubes and Cube Roots |
| 4 |
Plane Trigonometry |
| 5 |
The LL (Log Log) Scales |
| 6 |
Logarithms and the Slide Rule |
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