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The Difference Engine
was conceived to calculate and automatically
print error-free mathematical tables. It is so
named because of the mathematical principle upon
which it is based, the method of finite
differences. |
Napier's Bones
were created by the inventor of logarithms to aid
multiplication and division of long numbers. |
A Slide
Rule is a device used for rapid
numberical calculations that involve mainly
multiplication and division. |
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