Cocker's Decimal arithmetick. Whereunto is added, his Artificial arithmetick. Also his Algebraical arithmetick. Perused, corrected, and publ. by J. Hawkins

Front Cover
 

Selected pages

Other editions - View all

Common terms and phrases

Popular passages

Page 206 - It shows that the numbers between which it is placed, are to be multiplied together. Thus the expression 9x6, signifies that 9 and 6 are to be multiplied together, and is read, " 9 multiplied by 6," or, simply,
Page 225 - ... the logarithm of the divifor from the logarithm of the dividend, and the remainder will be the logarithm of the quotient : and...
Page 11 - Multiply the given decimal by the number of parts in the next less denomination, and point off as many decimal places as there are in the given decimal.
Page 326 - If three quantities be proportional, the product of the two extremes is equal to the square of the mean ;" for, if a : b : : b ; c, then, by TH.
Page 269 - ... The sign of subtraction called minus. This means that the number or quantity which follows the sign is to be subtracted from that which preceeds it. Thus 12 — 3 is read 12 minus 3 and means that 3 is to be taken from 12, the result being 9. X The sign of multiplication. This means that the two numbers or quantities between which it is placed are to be multiplied together. Thus 12 X 3 is read 12 times 3 or 12 multiplied by 3, the result being 36.
Page 269 - MATHEMATICAL SIGNS, SYMBOLS AND OPERATIONS Mathematical signs are simply shorthand methods of indicating mathematical language. Those most commonly met with are the following: + The sign of addition called plus. This means that the two numbers or quantities between which it is placed are to be added. Thus 12 + 3 is read 12 plus 3 and means that 12 and 3 are to be added, the result being 15. — The sign of subtraction called minus. This means that the number or quantity which follows the sign is...
Page 27 - Place the divisor to the left of the dividend and proceed as in division of whole numbers ; in the quotient, point off as many decimal places as the number of decimal places in the dividend exceeds the number of decimal places in the divisor, prefixing ciphers to the quotient, if necessary.
Page 225 - In order to divide one number by another, subtract the logarithm of the divisor from the logarithm of the dividend ; the remainder will be the logarithm of the quotient.
Page 210 - When four quantities are in arithmetical progression, the sum of the means is equal to the sum of the extremes.
Page 308 - In fra&ions, multiply the denominator of the divifor by the numerator of the dividend, for a new numerator ; alfo multiply the numerator of the divifor into the denominator of the dividend, for a new denominator. Ex. i.

Bibliographic information