The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtJ.J. Harper, 1828 - 435 páginas |
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Página 7
... the Horizon Dip for Dif . Dist . of land Semi - Diameter of the Sun Transit of Pole Star Difference of Altitude of Pole - · 192 200 Star and Pole - Sun's Declination 205 Reduction Table 5. Method of surveying by Intersections - · -
... the Horizon Dip for Dif . Dist . of land Semi - Diameter of the Sun Transit of Pole Star Difference of Altitude of Pole - · 192 200 Star and Pole - Sun's Declination 205 Reduction Table 5. Method of surveying by Intersections - · -
Página 8
... difference between two numbers , when it is not known which is the greater . Thus , 5 + 3 , denotes that 3 is to be added to 5 . 6 - 2 , denotes that 2 is to be taken from 6 . 7 × 3 , or 7. 3 , denotes that 7 is to be multiplied by 3 ...
... difference between two numbers , when it is not known which is the greater . Thus , 5 + 3 , denotes that 3 is to be added to 5 . 6 - 2 , denotes that 2 is to be taken from 6 . 7 × 3 , or 7. 3 , denotes that 7 is to be multiplied by 3 ...
Página 12
... difference 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 84 take 82.3412 . Diff ...
... difference 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 84 take 82.3412 . Diff ...
Página 24
... difference * This rule is found in Hutton's Mathematics . There has been different rules given for extracting the cube root , among which , this , and another rule given in Pike's of the given and assumed cube , so is the Arithmetic ...
... difference * This rule is found in Hutton's Mathematics . There has been different rules given for extracting the cube root , among which , this , and another rule given in Pike's of the given and assumed cube , so is the Arithmetic ...
Página 28
... , gives the logarithm of their product ; and the difference of the logarithms , gives the logarithm of the quotient of the numbers : from the two preceding logarithms , and the logarithm of 10 , which 28 OF LOGARITHMS .
... , gives the logarithm of their product ; and the difference of the logarithms , gives the logarithm of the quotient of the numbers : from the two preceding logarithms , and the logarithm of 10 , which 28 OF LOGARITHMS .
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Términos y frases comunes
ABCD acres altitude Answer arch base bearing centre chains and links circle circumferentor Co-sec Co-tang column compasses contained cube root decimal difference of latitude Dist divided divisions divisor draw east Ecliptic edge EXAMPLE feet field-book figure four-pole chains given angle given number half the sum height Hence Horizon glass hypothenuse inches instrument length logarithm measure Meridian Altitude meridian distance method multiplied natural co-sine natural number natural sine Nonius number of degrees object observed off-sets opposite parallel parallelogram perches perpendicular plane prob PROBLEM proportional protractor Quadrant quotient radius rhombus right angles right line Secant sect semicircle Sextant side square root station subtract Sun's survey taken Tang tangent theo theodolite THEOREM trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence