# The Foreign and Domestic Commercial Calculator; Or, A Complete Library of Numerical, Arithmetical, and Mathematical Facts, Tables, Data, Formulas, and Practical Rules for the Merchant and Mercantile Accountant

The author, 1867 - 220 σελίδες

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### Περιεχόμενα

 OF PRISMS 12 Moneys of Account coins 13 To construct a Rightangled Circu 14 OF CYLINDERS 217 21 To construct a Cylindrical Collar 29 PREHENSIVE MATHEMATICs with portions of other sections 30 207 31 Practical Approximate Weight 36
 Combinations by Volume of 89 SECTION III 95 Multiplication and Division 101 226 106 Reduction of Decimals 107 PERCENTAGE 114 314 118 INTEREST 120

 Weight and Strength of Iron 37 Weight of Flatrolled Iron TABLE 44 210 49 Capacity in Gallons of Cylindrical 50 MENSURATION OF LUMBER 56 Velocity of Projectiles 70 Alloys having a Density greater 75 303 77 THERMOMETERs different kinds 82 308 83 72 87
 Bank Interest or Bank Discount 127 General Average 134 Alligation 139 To Extract any Root 145 315 157 COMBINATION 167 SECTION 1 23 317 25 192 31 199 41

### Δημοφιλή αποσπάσματα

Σελίδα 136 - Multiply each payment by its term of credit, and divide the sum of the products by the sum of the payments ; the quotient will be the average term of credit.
Σελίδα 100 - To reduce a compound fraction to an equivalent simple one. RULE. — Multiply all the numerators together for a numerator, and all the denominators together for the denominator, and they will form the simple fraction sought.
Σελίδα 148 - Multiply the divisor, thus augmented, by the last figure of the root, and subtract the product from the dividend, and to the remainder bring down the next period for a new dividend.
Σελίδα 100 - To reduce a whole number to an equivalent fraction, having a given denominator. RULE. Multiply the whole number by the given denominator, and place the product over the said denominator, and it will form the fraction required.
Σελίδα 104 - It will be seen that we multiply the denominator of the dividend by the numerator of the divisor for the denominator of the quotient, and the numerator of the dividend by the denominator of the divisor for the numerator of the quotient.
Σελίδα 149 - Subtract the cube of this number from the first period, and to the remainder bring down the first figure of the next period for a dividend.
Σελίδα 115 - Sir," said I, after puzzling a long time over "more requiring more and less requiring less" — "will you tell me why I sometimes multiply the second and third terms together and divide by the first — and at other times multiply the first and second and divide by the third?" "Why, because more requires more sometimes, and sometimes it requires less — to be sure. Haven't you read the rule, my boy?" " Yes, sir, I can repeat the rule, but I don't understand it.
Σελίδα 147 - ... and to the remainder bring down the next period for a dividend. 3. Place the double of the root already found, on the left hand of the dividend for a divisor. 4. Seek how often the divisor is contained in the dividend...
Σελίδα 154 - GEOMETRICAL PROGRESSION. A series of three or more numbers, increasing by a common multiplier, or decreasing by a common divisor, is called a geometrical progression. If the greater numbers of the progression are to the right, the progression is called an ascending geometrical progression, but, on the contrary, if they are to the left, it is called a descending geometrical progression. The number by which the progression is formed, that is, the common multiplier, or divisor, is called the ratio.
Σελίδα 147 - RULE. 1 . Separate the given number into periods of three figures each, by putting a point over the unit figure and every third figure bejond the place of units.