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Table of Contents
6

The English pound is generally called a pound sterling, which distinguishes it from the weight called a pound, and also from foreign coins.

7

The coin called a guinea is now no longer in use, but the name is still given, from custom, to 21 shillings. The pound, which was not a coin, but a note promising to pay 20 shillings to the bearer, is also disused for the present, and the sovereign supplies its place; but the name pound is still given to 20 shillings.

8

When a decimal follows a whole number, the decimal is always of the same unit as the whole number. Thus, 5ᔆ·5 is five seconds and five-tenths of a second. Thus, 0ᔆ·5 means five-tenths of a second; 0ʰ·3, three-tenths of an hour.

9

Here the 4s. from the dividend is taken in.

10

Here the 3d. from the dividend is taken in.

11

The solution of x³ + 0x² + 0x-2 = 0.

12

Taken from a paper on the subject, by Mr. Peter Gray, in the Mechanics’ Magazine.

13

Taken from a paper on the subject, by Mr. Peter Gray, in the Mechanics’ Magazine.

14

Taken from a paper on the subject, by Mr. Peter Gray, in the Mechanics’ Magazine.

15

Taken from the late Mr. Peter Nicholson’s Essay on Involution and Evolution.

16

Taken from the late Mr. Peter Nicholson’s Essay on Involution and Evolution.

17

Taken from the late Mr. Peter Nicholson’s Essay on Involution and Evolution.

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