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 σελίδες |
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Σελίδα 21
... double of the said root be made a divisor to all the figures of that last remainder , except the last ; put the quotient thereof with the root , or former quotient ; and having multiplied it into the numbers so formed , deduct the ...
... double of the said root be made a divisor to all the figures of that last remainder , except the last ; put the quotient thereof with the root , or former quotient ; and having multiplied it into the numbers so formed , deduct the ...
Σελίδα 22
... double of the first figure in the quotient being 10 , is then set as a divisor to 48 , all the figures in the resolvend , but the last ; and finding it to be contained 4 times , we anuex the 4 to the divisor and quotient ; the then ...
... double of the first figure in the quotient being 10 , is then set as a divisor to 48 , all the figures in the resolvend , but the last ; and finding it to be contained 4 times , we anuex the 4 to the divisor and quotient ; the then ...
Σελίδα 27
... double the radius , as AB or DE , fig . 8 . 17. Parallel lines are such as are every where equi - distant from each other , as AB , CD . fig . 9 . A fig . 9 . R 18. A figure is a space bounded by a line GEOMETRY . 27.
... double the radius , as AB or DE , fig . 8 . 17. Parallel lines are such as are every where equi - distant from each other , as AB , CD . fig . 9 . A fig . 9 . R 18. A figure is a space bounded by a line GEOMETRY . 27.
Σελίδα 28
... double capacity ; 1st , with respect to its sides ; and 2d , to its angles . 20. In respect to its sides it is ei- ther equilateral , having the three sides equal , as A. fig . 10 . 21. Or isosceles , having two equal -sides , as B ...
... double capacity ; 1st , with respect to its sides ; and 2d , to its angles . 20. In respect to its sides it is ei- ther equilateral , having the three sides equal , as A. fig . 10 . 21. Or isosceles , having two equal -sides , as B ...
Σελίδα 39
... double the an- gle BAD at the circumference , standing upon the same arc LED fig . 25 . 72 fg . 25 . BK Through the point A , and the centre C , draw the line ACE : then the angle ECD = CAD + CDA ; ( by theo . 4. ) but since AC = CD ...
... double the an- gle BAD at the circumference , standing upon the same arc LED fig . 25 . 72 fg . 25 . BK Through the point A , and the centre C , draw the line ACE : then the angle ECD = CAD + CDA ; ( by theo . 4. ) but since AC = CD ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
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