Elements of Surveying and Leveling: With Descriptions of the Instruments, and the Necessary Tables |
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Page 9
... taken as the base of a system . In the common system , the base is 10 . 2. If we denote any positive number by n , corresponding exponent of 10 by p , we exponential equation , 10P = n . • shall and the have the • · ( 1. ) In this ...
... taken as the base of a system . In the common system , the base is 10 . 2. If we denote any positive number by n , corresponding exponent of 10 by p , we exponential equation , 10P = n . • shall and the have the • · ( 1. ) In this ...
Page 14
... taken from the line immediately below . When the figures first found , fall at a place where dots occur , the dots must be replaced by O's , and the figures to be prefixed must be taken from the line below . Thus , Log 8979 = 3.953228 ...
... taken from the line immediately below . When the figures first found , fall at a place where dots occur , the dots must be replaced by O's , and the figures to be prefixed must be taken from the line below . Thus , Log 8979 = 3.953228 ...
Page 16
... taken out and that of the given logarithm ; an- nex as many O's as may be necessary , and divide this result by the corresponding number in the column " D. " Annex the quotient to the number set aside , and then point off , from the ...
... taken out and that of the given logarithm ; an- nex as many O's as may be necessary , and divide this result by the corresponding number in the column " D. " Annex the quotient to the number set aside , and then point off , from the ...
Page 18
... taken from 1 , gives 2 for a result . The sub- traction , as in this case , is always to be performed in the algebraic sense . 3. To divide 0.06314 by .007241 . log 0.06314 log 0.007241 · · • 2.800305 3.859799 0.940506 ... 8.7198 ...
... taken from 1 , gives 2 for a result . The sub- traction , as in this case , is always to be performed in the algebraic sense . 3. To divide 0.06314 by .007241 . log 0.06314 log 0.007241 · · • 2.800305 3.859799 0.940506 ... 8.7198 ...
Page 19
... taken from 2 , leaves 0 for the char- acteristic . 4. To divide 37.149 by 523.76 . log 37.149 log 523.76 · • 1.569947 • • • 2.719133 5. Divide 0.7438 by 12.9476 . 2.850814 ... 0.0709274 , quotient . Ans . 0.057447 . The operation of ...
... taken from 2 , leaves 0 for the char- acteristic . 4. To divide 37.149 by 523.76 . log 37.149 log 523.76 · • 1.569947 • • • 2.719133 5. Divide 0.7438 by 12.9476 . 2.850814 ... 0.0709274 , quotient . Ans . 0.057447 . The operation of ...
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Common terms and phrases
axis azimuth back-sight base-line bench calculated called centre cut chord column compass contour lines corresponding Cosine Cosine D course curve datum line decimal degree of curvature DEGREES determined difference of level direct the telescope divided double meridian distance draw drawn east elongation error example feet field field-notes fore-sight ground height of instrument hence horizontal distance horizontal plane inches intersection latitude and departure length line of collimation mantissa marked measured method multiplied natural sines necessary needle notes offsets paper parallel passing perpendicular plane of reference plane-table plot position prismoid protractor radius reading right angles screws section level side sights Sine D spider's lines station subtract survey taken Tang tangent theodolite Transit survey traverse triangle true meridian vernier plate wwwwwwwww yards