The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art. With a New Set of Accurate Mathematical TablesA. S. Barnes, 1839 - 412 páginas |
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Página 12
... whole , this is called the numerator of a fraction . The numerator , in the vulgar form , is always written over the denominator , and these are separated by a small line thus , or ; the first of these is called three - fourths , and ...
... whole , this is called the numerator of a fraction . The numerator , in the vulgar form , is always written over the denominator , and these are separated by a small line thus , or ; the first of these is called three - fourths , and ...
Página 13
... whole numbers , and put the decimal point in the sum directly beneath the other points . EXAMPLES . Add 4.7832 , 3.2543 , 7.8251 , 6.03 , 2.857 , and 3.251 together . Place them thus , 4.7832 3.2543 7.8251 6.03 2.857 3.251 Sum = 28.0006 ...
... whole numbers , and put the decimal point in the sum directly beneath the other points . EXAMPLES . Add 4.7832 , 3.2543 , 7.8251 , 6.03 , 2.857 , and 3.251 together . Place them thus , 4.7832 3.2543 7.8251 6.03 2.857 3.251 Sum = 28.0006 ...
Página 14
... whole numbers , and place the decimal point in the difference exactly under the other two points . EXAMPLES . From 38.765 take 25.3741 25.3741 Difference = 13.3909 From 2.4 take .8472 .8472 Diff . - 1.5528 From 71.45 take 8.4837248 ...
... whole numbers , and place the decimal point in the difference exactly under the other two points . EXAMPLES . From 38.765 take 25.3741 25.3741 Difference = 13.3909 From 2.4 take .8472 .8472 Diff . - 1.5528 From 71.45 take 8.4837248 ...
Página 15
... whole numbers ; observing that the divisor and quotient together must contain as many decimal places as there are in the dividend . If , therefore , the dividend have just as many places of decimals as the divisor has , the quotient ...
... whole numbers ; observing that the divisor and quotient together must contain as many decimal places as there are in the dividend . If , therefore , the dividend have just as many places of decimals as the divisor has , the quotient ...
Página 23
... whole number with a decimal , into periods , the division must also commence at the unit figure or decimal point , and must be continued both ways , if there be a whole number ; and if there be an odd figure at the end of the decimal ...
... whole number with a decimal , into periods , the division must also commence at the unit figure or decimal point , and must be continued both ways , if there be a whole number ; and if there be an odd figure at the end of the decimal ...
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Términos y frases comunes
ABCD acres altitude arch base bearing blank line centre chains and links circle circumferentor column compasses contained Cosine Sine cube root decimal diagonal diameter difference of latitude divided divisions divisor draw east ecliptic edge EXAMPLE feet field-book figure four-pole chains geometrical series given angle given number half the sum height Hence horizon glass hypothenuse inches instrument length logarithm manner measure meridian distance multiplied needle nonius number of degrees object observed opposite parallelogram perches perpendicular plane prob PROBLEM proportion protractor quadrant quotient radius rhombus right angles right line scale of equal screw secant sect sector semicircle side Sine Cotang square root station stationary distance subtract suppose survey taken Tang tangent theo theodolite THEOREM trapezium triangle ABC trigonometry two-pole chains vane vulgar fraction whence
Pasajes populares
Página 49 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Página 41 - 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, &c.
Página 41 - The radius of a circle is a right line drawn from the centre to the circumference.
Página 45 - A lemma is something which is premised, or demonstrated, in order to render what follows more easy. A corollary is a consequent truth derived immediately from some preceding truth or demonstration.
Página 35 - DIVISION BY LOGARITHMS. RULE. From the logarithm of the dividend subtract the logarithm of the divisor, and the number answering to the remainder will be the quotient required.
Página 21 - Then multiply the second and third terms together, and divide the product by the first term: the quotient will be the fourth term, or answer.