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 10
... Hence it appears , that as the value and denomination of any figure , or number of figures , in common arithmetic is enlarged and becomes ten , or a hundred , or a thousand times greater , by placing one or two , or three ciphers after ...
... Hence it appears , that as the value and denomination of any figure , or number of figures , in common arithmetic is enlarged and becomes ten , or a hundred , or a thousand times greater , by placing one or two , or three ciphers after ...
Página 26
... Hence it appears that there may be as many kinds of indices , or logarithms , as there can be taken kinds of geometrical series . But the Logarithms most convenient for common uses are those adapted to a geometrical series increasing in ...
... Hence it appears that there may be as many kinds of indices , or logarithms , as there can be taken kinds of geometrical series . But the Logarithms most convenient for common uses are those adapted to a geometrical series increasing in ...
Página 27
... Hence by one addition are found the Logarithms of 9 and 11 : And thus the Logarithms of all the prime numbers are prepared , that is , 2. 3. 5. 11 , & c . 2X2X2 0.8 Moreover by only depressing the numbers above computed , lower in the ...
... Hence by one addition are found the Logarithms of 9 and 11 : And thus the Logarithms of all the prime numbers are prepared , that is , 2. 3. 5. 11 , & c . 2X2X2 0.8 Moreover by only depressing the numbers above computed , lower in the ...
Página 36
... Hence , 3 times the negative index being 3 , and 2 to carry from the decimals , the difference is 1 , the index of the product . 5. To find the fourth power of .09163 . 6. To find the 2d power of 6.05987 . 7. To find the cube of 3.07146 ...
... Hence , 3 times the negative index being 3 , and 2 to carry from the decimals , the difference is 1 , the index of the product . 5. To find the fourth power of .09163 . 6. To find the 2d power of 6.05987 . 7. To find the cube of 3.07146 ...
Página 39
... hence it is plain that the radius CD is the greatest possible sine , and thence is called the whole sine . Since the whole sine CD ( fig . 8. ) must be perpendicular to the diameter ( by def . 20. ) therefore producing DC to E , the two ...
... hence it is plain that the radius CD is the greatest possible sine , and thence is called the whole sine . Since the whole sine CD ( fig . 8. ) must be perpendicular to the diameter ( by def . 20. ) therefore producing DC to E , the two ...
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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