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LONGMAN, HURST, REES, ORME, BROWN, AND GREEN,

PATERNOSTER-ROW.

1824.

BOD

LONDON:

Printed by A. & R. Spottiswoode,

New-Street-Square.

ELEMENTS

OF

ALGEBRA.

OF THE DIFFERENT METHODS OF CALCULATING SIMPLE

QUANTITIES.

CHAP. I.

OF MATHEMATICS IN GENERAL.

1.MAGNITUDE OF Quantity may be defined to be any thing that is capable of increase and diminution.

A sum of money is therefore a quantity, because we may either add to, or diminish it. It is the same also with weights, and other things of the same nature.

2. It will thus be easily seen, that there must be so many different kinds of magnitude, as to render it difficult to enumerate them, and hence is the origin of the different parts of Mathematics, each of which is directed to a particular kind of quantity. Mathematics, in general, is nothing more than the Science of quantities, or the science which points out the method of measuring quantity.

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