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Napier's abacus

Napier's abacus

Napier's abacus

Desenvolvedor Bonaventura Novellino

Pacote:

napier.abacus.zero

Transferências:

1K

Tamanho:

164 KB

Requires Android:

2.0 ou superior

Atualizado:

14 de jun de 2018

10

Última versão:

1.0

Era:

Todos

Gratuito Baixar

This abacus was created by John Napier of Merchiston in 1617 for calculation of products and quotients of numbers. The method was based on Arab mathematics and the lattice multiplication. Using the multiplication tables embedded in the rods, multiplication can be reduced to addition operations and division to subtractions.

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