The arithmeticall jewell: or The use of a small table : whereby is speedily wrought, as well all arithmeticall workes in whole numbers, as all fractionall operations, without fraction or reduction. Invented by William Pratt. Published by his Majesties priviledge, granted to the inventor, under the Great Seale of England

Author / Creator

Pratt, William, active 1616-1624

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