Written and published as far back as the 17th century, Rabdology (or its Latin Rabdologiæ) is a treatise by famous Scottish astronomer, mathematician, and physicist named Marvellous Merchiston.
The treatise covers three separate non-logarithm devices to help with arithmetic calculations.
The devices are used to minimize division and multiplication of natural numbers to fundamental subtraction and addition operations.
1916
1917
1918
1919
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The method or art of performing arithmetical operations by means of Napier's bones
The method or art of performing geometrical operations by means of Napier's bones
The method or art of performing intrinsic operations by means of Napier's bones
The method or art of performing extrinsic operations by means of Napier's bones
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John NapierĀ
Joshua Napier
Isaac Napier
Ezekiel Napier
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1
2
3
4
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Four figure table
Logarithm table
Multiplication table
Saturated steam table
Addition
Multiplication
Division
Square root
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Add numbers
Divide numbers
Subtract numbers
Square numbers
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Promptuary
Punctured lines
Rings
Tyres
Logarithm form
Binary form
Matrix form
Trigonometric form
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Multiplication
Division
Square root
Addition
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