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Mathematical Tables, Automatic Arithmetic: A New System for Multiplication and Division without Mental Labour and without the Use of Logarithms

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The title of this bound set of tables ...
The New Indian Express

The mighty abacus

The abacus can be used to solve basic arithmetic operations such as addition, subtraction, multiplication and division as well as more advanced operations such as square roots and logarithms. The ...
Nature

Automatic Arithmetic: a New System for Multiplication and Division without Mental Labour and without the Use of Logarithms.

THIS is an ingenious work, and would have suited the “fantastical” Armado (“I am ill at reckoning; it fitteth the spirit of a tapster”). By the aid of 1759 figures only the user of it is able to ...