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Titolo |
Rabdologia, or, The art of numbring by rods [[electronic resource] ] : whereby the tedious operations of multiplication, and division, and of extraction of roots, both square and cubick, are avoided, being for the most part performed by addition and subtraction : with many examples for the practice of the same : first invented by the Lord Napier, Baron of Marchiston ... / / by Seth Partridge . |
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