A ready reckoner is a book in which money tables and arithmetic tables was printed. It was more used before the arrival of computers and cheaply available pocket calculators.
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Gottfried Wilhelm Leibniz.
veru useful.it provides the scheme of valuation which is of great help
It did multiplication by repeated addition and shifting whereas Pascal's couldn't.
It did multiplication by repeated addition and shifting whereas Pascal's couldn't.
It did multiplication by repeated addition and shifting whereas Pascal's couldn't.