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 vi
... logarithm numbers , sines , tan- gents , and secants . The second section contains plane trigonometry right angled and oblique , with its application in deter- mining the measures of inaccessible heights and dis- tances . The third ...
... logarithm numbers , sines , tan- gents , and secants . The second section contains plane trigonometry right angled and oblique , with its application in deter- mining the measures of inaccessible heights and dis- tances . The third ...
Página 73
... Hence it is easy to measure the length of any line knowing the scale by which it was laid down and on the contrary , to set off any given distance from any scale . * P 10 OF LOGARITHMS . IF to a series of numbers in PROBLEMS . 73.
... Hence it is easy to measure the length of any line knowing the scale by which it was laid down and on the contrary , to set off any given distance from any scale . * P 10 OF LOGARITHMS . IF to a series of numbers in PROBLEMS . 73.
Página 74
... and add them together , the sum will be the logarithm answering to the number , which is the product of the two proposed numbers . Again , when one number is proposed to be divided 74 OF LOGARITHMS . OF LOGARITHMS. ...
... and add them together , the sum will be the logarithm answering to the number , which is the product of the two proposed numbers . Again , when one number is proposed to be divided 74 OF LOGARITHMS . OF LOGARITHMS. ...
Página 75
... logarithm of the dividend we subtract the logarithm of the divisor , the remainder shall be the logarithm of the quotient . Most tables of logarithms contain the logarithms of all numbers from 1 to 10000 , the column marked at the top N ...
... logarithm of the dividend we subtract the logarithm of the divisor , the remainder shall be the logarithm of the quotient . Most tables of logarithms contain the logarithms of all numbers from 1 to 10000 , the column marked at the top N ...
Página 76
... logarithm . is is EXAMPLE 1 . Required , the logarithm of the number 3567194 . The log . of 3567 , which are the first four figures , 3,55230 The log . of the following or next number , viz . 3568 , 3,55242 Their difference , Mult . by ...
... logarithm . is is EXAMPLE 1 . Required , the logarithm of the number 3567194 . The log . of 3567 , which are the first four figures , 3,55230 The log . of the following or next number , viz . 3568 , 3,55242 Their difference , Mult . by ...
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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