The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtEvert Duyckinck, 1814 - 508 σελίδες |
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Σελίδα 4
... 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 . gether . Add 6.2 121.306 .75 2.7 and .0007 to- 4 DECIMAL FRACTIONS .
... 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 . gether . Add 6.2 121.306 .75 2.7 and .0007 to- 4 DECIMAL FRACTIONS .
Σελίδα 5
... 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 . Difference = 62.9662752 . From DECIMAL FRACTIONS . 5 L.
... 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 . Difference = 62.9662752 . From DECIMAL FRACTIONS . 5 L.
Σελίδα 6
... from whence it arose . EXAMPLES . Multiply 48.765 by .003609 .003609 438885 292590 146295 Product.175992885 Multiply .121 by .14 484 121 Product .01694 Multiply 121.6 by 2.76 2.76 7296 8512 2432 Product 335.616 R DECIMAL FRACTIONS .
... from whence it arose . EXAMPLES . Multiply 48.765 by .003609 .003609 438885 292590 146295 Product.175992885 Multiply .121 by .14 484 121 Product .01694 Multiply 121.6 by 2.76 2.76 7296 8512 2432 Product 335.616 R DECIMAL FRACTIONS .
Σελίδα 7
... , annex ciphers to this remainder , and continue the operation till nothing remains , or till a sufficient number of decimal shall be found in the quotient . EXAMPLES . Divide .144 by .12 .12 ) .144 ( DECIMAL FRACTIONS .
... , annex ciphers to this remainder , and continue the operation till nothing remains , or till a sufficient number of decimal shall be found in the quotient . EXAMPLES . Divide .144 by .12 .12 ) .144 ( DECIMAL FRACTIONS .
Σελίδα 8
... EXAMPLES . Divide .144 by .12 .12 ) .144 ( 1.2 quotient . ← 12 24 24 0 Divide 63.72413456922 by 2718 2718 ) 63.72413456922 ( .02344522979 = quotient . 5436 9364 8154 12101 10872 12293 10872 14214 13590 6245 5436 8096 5436 26609 24462 ...
... EXAMPLES . Divide .144 by .12 .12 ) .144 ( 1.2 quotient . ← 12 24 24 0 Divide 63.72413456922 by 2718 2718 ) 63.72413456922 ( .02344522979 = quotient . 5436 9364 8154 12101 10872 12293 10872 14214 13590 6245 5436 8096 5436 26609 24462 ...
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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 Dep Lat Dep difference Dist divided divisions draw east Ecliptic edge EXAMPLE feet field-book figures fore four-pole chains geometrical series given number half the sum Horizon glass hypothenuse inches instrument Lat Dep Lat latitude length logarithm measure meridian distance multiplied Natural Co-sines 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 Sextant side sights square root station stationary distance subtracted survey taken Tang tangent theo theodolite trapezium triangle ABC trigonometry vane versed sine vulgar fraction