A Complete Treatise on Practical Mathematics: Including the Nature and Use of Mathematical Instruments: Logarithmic Tables, Trigonometry, Mensuration of Heights and Distances,--of Surfaces & Solids, Land Surveying, Gunnery, Gauging, Artificer's Measuring, Miscellaneous Exercises. With an Appendix on Algebra ... Principally Designed for the Use of Schools and AcademiesBell and Bradfute, 1792 - 431 σελίδες |
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Σελίδα i
... RULES , AND A VARIETY OF SUITABLE EXAMPLES TO EACH RULE . Principally defigned FOR THE USE OF SCHOOLS AND ACADEMIES . BY JOHN MACGREGOR , TEACHER OF MATHEMATICS , EDINBURGH . EDINBURGH : PRINTED FOR BELL AND BRADFUTE , AND G. G. J. & J ...
... RULES , AND A VARIETY OF SUITABLE EXAMPLES TO EACH RULE . Principally defigned FOR THE USE OF SCHOOLS AND ACADEMIES . BY JOHN MACGREGOR , TEACHER OF MATHEMATICS , EDINBURGH . EDINBURGH : PRINTED FOR BELL AND BRADFUTE , AND G. G. J. & J ...
Σελίδα 24
... Rule , From the logarithim of the dividend , fubtract the logarithm of the divifor , and the remainder is the logarithm of the quotient . Ex . Required the quotient of 425 , divided by 15 . The log . of 425 , is 2.62839 . The log . of ...
... Rule , From the logarithim of the dividend , fubtract the logarithm of the divifor , and the remainder is the logarithm of the quotient . Ex . Required the quotient of 425 , divided by 15 . The log . of 425 , is 2.62839 . The log . of ...
Σελίδα 25
... Rule , Divide the logarithm of the given number , by the exponent of the power , and the quotient will give the loga- rithm of the root . Ex . Required the cube root of 1728 . The logarithm of 1728 , is 3.23754 , which , if divided by 3 ...
... Rule , Divide the logarithm of the given number , by the exponent of the power , and the quotient will give the loga- rithm of the root . Ex . Required the cube root of 1728 . The logarithm of 1728 , is 3.23754 , which , if divided by 3 ...
Σελίδα 26
... Rule , Add the logarithms of the two given numbers together , and half their fum is the logarithm of the mean proportional . Ex . Required a mean proportional between 8 and 32 . The log . of 8 , is 0.90309 . The log . of 32 , is 1.50515 ...
... Rule , Add the logarithms of the two given numbers together , and half their fum is the logarithm of the mean proportional . Ex . Required a mean proportional between 8 and 32 . The log . of 8 , is 0.90309 . The log . of 32 , is 1.50515 ...
Σελίδα 117
... RULE . Multiply the fide by itself , and the product will be the area . EXAMPLE I. How many fquare yards are in a fquare , whofe fide is 15 feet ? Duodecimally . F. in . 15 6 15 6 232 6 7 9 9 ) 240 3 26 yds 6 feet 3 inches . Decimally ...
... RULE . Multiply the fide by itself , and the product will be the area . EXAMPLE I. How many fquare yards are in a fquare , whofe fide is 15 feet ? Duodecimally . F. in . 15 6 15 6 232 6 7 9 9 ) 240 3 26 yds 6 feet 3 inches . Decimally ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
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Δημοφιλή αποσπάσματα
Σελίδα 27 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, etc.
Σελίδα 115 - Therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Σελίδα 3 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 232 - E, is equal to twice as many right angles as the figure has sides, less four right angles.
Σελίδα 1 - ... common to the two triangles AFE, BFE, there are two sides in the one equal to two sides in the other, each to each ; and the base EA is equal to the base EB ; (i.
Σελίδα 38 - BG; that is, the fum of the fides is to their difference, as the tangent of half the fum of the angles at the bafe to the tangent of half their difference.
Σελίδα 372 - Subtract the square number from the left hand period, and to the remainder bring down the next period for a dividend. III. Double the root already found for a divisor ; seek how many times the divisor is contained...
Σελίδα 38 - AB the greater side for a distance, let a circle be described, meeting AC, produced in E, F, and BC in D; join DA, EB, FB; and draw FG parallel to BC, meeting EB in G. The angle EAB (32.
Σελίδα 38 - ACB (32. 1.) is equal to the angles CAD and ADC, or ABC together ; therefore FAD is the difference of the angles at the...
Σελίδα 395 - TO divide a given ftraight line into two parts, fo that the rectangle contained by the whale, and one of the parts, fhall be equal to the fquare of the other part. Let AB be the given ftraight line; it is required to divide it into two parts, fo that the rectangle contained by the whole, and one of the parts, fhall be equal to the fquare of the other part. Upon AB...