A Treatise on Practical Surveying: Which is Demonstrated from Its First Principles : Wherein Every Thing that is Useful and Curious in that Art, is Fully Considered and ExplainedF. Lucas, jun. and Cushing & Jewett, J. Robinson printer, 1822 - 326 páginas |
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Página vii
... figures ) that any method or methods more concise than this , can be investigated . To these methods is annexed a short table of dif- ference of latitude and half departure , to every de- gree and quarter of a degree of the quadrant ...
... figures ) that any method or methods more concise than this , can be investigated . To these methods is annexed a short table of dif- ference of latitude and half departure , to every de- gree and quarter of a degree of the quadrant ...
Página 10
... figures in the numerators , it fol- lows that any number of cyphers put after those nu- merators , will neither increase nor lessen their value : for 330 3000 are all of the same value and will stand in the decimal form thus .3 .30.300 ...
... figures in the numerators , it fol- lows that any number of cyphers put after those nu- merators , will neither increase nor lessen their value : for 330 3000 are all of the same value and will stand in the decimal form thus .3 .30.300 ...
Página 11
... figure or numbers of figures in common arithmetic is enlarged , and becomes ten or an hun- dred , or a thousand times greater , by placing one , or two , or three cyphers after it ; so in decimal arith- metic , the value of any figure ...
... figure or numbers of figures in common arithmetic is enlarged , and becomes ten or an hun- dred , or a thousand times greater , by placing one , or two , or three cyphers after it ; so in decimal arith- metic , the value of any figure ...
Página 12
... 3.97 and .0271 ? Answer 693.5431 . What is the sum of 4.51 146.071 .507 .0006 . 132 . 62.71 507 7.9 and .10712 ? Answer 354.31273 . SUBTRACTION OF DECIMALS . Having placed the figures which are 12 DECIMAL FRACTIONS .
... 3.97 and .0271 ? Answer 693.5431 . What is the sum of 4.51 146.071 .507 .0006 . 132 . 62.71 507 7.9 and .10712 ? Answer 354.31273 . SUBTRACTION OF DECIMALS . Having placed the figures which are 12 DECIMAL FRACTIONS .
Página 13
... figures which are equi - distant from the point , under each other , deduct as if they were integers . EXAMPLES . From 88.765 take .25.3741 25.3741 Answer 13.3909 From 2.4 take .8472 .8472 1.5528 From 71.45 take 8.4837248 Answer ...
... figures which are equi - distant from the point , under each other , deduct as if they were integers . EXAMPLES . From 88.765 take .25.3741 25.3741 Answer 13.3909 From 2.4 take .8472 .8472 1.5528 From 71.45 take 8.4837248 Answer ...
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A Treatise of Practical Surveying: Which is Demonstrated From Its First ... Robert Gibson Sin vista previa disponible - 2021 |
Términos y frases comunes
20 perches ABCD acres altitude Answer base bearing blank line centre chains and links chord circle circumferentor Co-secant co-sine Co-tang column compass contained cyphers decimal decimal fraction difference Dist divided divisor draw east edge EXAMPLE feet field-book figures four-pole chains given angle half the sum height Hence hypothenuse inches instrument latitude length logarithm measure meridian distance multiplied needle number of degrees object off-sets opposite parallel parallelogram perpendicular piece of ground plane polygon Portmarnock PROB proportion protractor quotient radius right angles right line scale of equal SCHOLIUM secant second station sect semicircle side sights sine square root stationary distance stationary line sun's suppose survey taken tang tangent thence theo theodolite THEOREM thro triangle ABC trigonometry true amplitude true azimuth two-pole chains vane variation whence