The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtEvert Duyckinck, 1814 - 508 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 43.
Σελίδα 4
... hand column of figures , add in the same manner as in whole num- bers , and put the decimal point , in the sum di- rectly beneath the other points . EXAMPLES . Add 4.7832 3.2543 7.8251 6.03 2.857 and 3,251 together . Place them thus ...
... hand column of figures , add in the same manner as in whole num- bers , and put the decimal point , in the sum di- rectly beneath the other points . EXAMPLES . Add 4.7832 3.2543 7.8251 6.03 2.857 and 3,251 together . Place them thus ...
Σελίδα 5
... hand , sub- tract as in 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 ...
... hand , sub- tract as in 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 ...
Σελίδα 6
... hand towards the left , as there are in both the multiplicand and multiplier : but if there be not a sufficient number of places in the product , the defect may be supplied by pre- fixing ciphers thereto . For the denominator of the ...
... hand towards the left , as there are in both the multiplicand and multiplier : but if there be not a sufficient number of places in the product , the defect may be supplied by pre- fixing ciphers thereto . For the denominator of the ...
Σελίδα 13
... hand of the product , for a re- mainder , as there are figures in the given deci- mal . Multiply this remainder by the number of the next inferior denomination , and point off a re- mainder , as before . Proceed in this manner through ...
... hand of the product , for a re- mainder , as there are figures in the given deci- mal . Multiply this remainder by the number of the next inferior denomination , and point off a re- mainder , as before . Proceed in this manner through ...
Σελίδα 18
... hand in whole numbers , and toward the right hand in the Decimal places . When the number of integral places is odd , the first , or left hand pe- riod , will consist of one figure only . Find the greatest square in the first period on ...
... hand in whole numbers , and toward the right hand in the Decimal places . When the number of integral places is odd , the first , or left hand pe- riod , will consist of one figure only . Find the greatest square in the first period on ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
acres altitude Answer arch base bearing blank line centre chains and links circle circle of latitude circumferentor Co-sec Co-tang column compasses contained decimal difference Dist divided divisions draw east Ecliptic edge EXAMPLE feet field-book figures fore four-pole chains geometrical series given angle given number half the sum Horizon glass hypothenuse inches instrument latitude length logarithm measure meridian distance minutes multiplied natural sine Nonius number of degrees object observed off-sets opposite parallelogram perches perpendicular plane pole pole star PROB proportion protractor Quadrant quotient radius right angles right line scale of equal SCHOLIUM screw Secant sect semicircle side sights square root station stationary distance subtracted survey taken tance Tang tangent theo theodolite trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence
Δημοφιλή αποσπάσματα
Σελίδα 52 - 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.
Σελίδα 39 - The Circumference of every circle is supposed to be divided into 360 equal parts, called Degrees ; and each degree into 60 Minutes, each minute into 60 Seconds, and so on.
Σελίδα 18 - DISTINGUISH the given number into periods of two figures each, by putting a point over the place of units, another over the place of hundreds, and so on, which points shew the number of figures the root will consist of. 2. " FIND the greatest square number in the first, or left hand period...
Σελίδα 120 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Σελίδα 31 - 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.
Σελίδα 87 - On the line of lines make the lateral distance 10, a transverse distance between 8 on one leg, and 6 on the other leg. On the line of sines make the lateral distance 90, a transverse distance from 45 to 45 ; or from 40 to 50 ; or from 30 to 60 ; or from the sine of any degree to their complement.
Σελίδα 7 - RULE. Divide as in whole numbers, and from the right hand of the quotient point off as many places for decimals as the decimal places in the dividend exceed those in the divisor.
Σελίδα 82 - ... longer than the intermediate adjacent ones, these are whole degrees ; the shorter ones, or those of the third order, are 30 minutes. From the centre, to 60 degrees, the line of sines is divided like the line of tangents ; from 60 to 70, it is divided only to every degree ; from 70 to 80, to every two degrees ; from 80 to 90, the division must be estimated by the eye.