ARITHMETIC, including the Doctrine of DISCRETE or Discontinuous QUANTITY,
viz. Number, Ratio, Proportion,&c.
Kinds, as Integer, Fraction, Decimal, Surd, &c.
Relations, as Root, Power, Square, Cube, &c.
Rules or Operations thereof, as Notation, Numeration, Addition, Subtraction, &c.
Reduction, Practice, Position, &c.
Extraction, Approximation, &c.
Instruments subservient thereto, as Logarithms, Nepair's Bones, &c.

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1 ABACUS Ephraim Chambers 985