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 11
... observed . RULE II , To reduce Quantities of the same , or of different Denominations to Decimal Fractions of higher denominations . If the given quantity consist of one denomina- tion only , write it as the numerator of a vulgar ...
... observed . RULE II , To reduce Quantities of the same , or of different Denominations to Decimal Fractions of higher denominations . If the given quantity consist of one denomina- tion only , write it as the numerator of a vulgar ...
Σελίδα 29
... observed , that the operation is shorter in the larger prime numbers ; for when any given number exceeds 400 , the first quotient , being added to the Logarithm of its next lesser number , will give the Logarithm sought , true to 8 , or ...
... observed , that the operation is shorter in the larger prime numbers ; for when any given number exceeds 400 , the first quotient , being added to the Logarithm of its next lesser number , will give the Logarithm sought , true to 8 , or ...
Σελίδα 46
... follows the more easy . A corollary is a consequent truth , deduced from a foregoing demonstration . A scholium , is a remark or observation made upon something going before . GEOMETRICAL THEOREMS . THEOREM I. PL . 1 , fig 46 GEOMETRY .
... follows the more easy . A corollary is a consequent truth , deduced from a foregoing demonstration . A scholium , is a remark or observation made upon something going before . GEOMETRICAL THEOREMS . THEOREM I. PL . 1 , fig 46 GEOMETRY .
Σελίδα 103
... to be required . From these proportions it may be observed ; that to find a side , when the angles and one side are given , any sidę may be made the radius ; and to find an angle , one of the given sides TRIGONOMETRY . 103.
... to be required . From these proportions it may be observed ; that to find a side , when the angles and one side are given , any sidę may be made the radius ; and to find an angle , one of the given sides TRIGONOMETRY . 103.
Σελίδα 137
... observe , that all slant , or inclined surfaces , as sides of hills , are measured horizontally , and not on the plane or surface of the hill , and is thus effected : PL . 8. fig . 4 . Let ABC be a hill , the hindmost chainman is to ...
... observe , that all slant , or inclined surfaces , as sides of hills , are measured horizontally , and not on the plane or surface of the hill , and is thus effected : PL . 8. fig . 4 . Let ABC be a hill , the hindmost chainman is to ...
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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