The Field Engineer: A Handy Book of Practice in the Survey, Location, and Track-work of Railroads : Containing a Large Collection of Rules and Tables, Original and Selected, Applicable to Both the Standard and the Narrow Gauge, and Prepared with Special Reference to the Wants of the Young EngineerVan Nostrand, 1882 - 6 páginas |
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Página 4
... mantissa . Thus the logarithm of 6 is 0.778151 ; that of 84 is 1.924279 . 3. If the number lie between 100 and 10000 , find the first three figures of it in column N ; then pass along a horizontal line until you come to the column ...
... mantissa . Thus the logarithm of 6 is 0.778151 ; that of 84 is 1.924279 . 3. If the number lie between 100 and 10000 , find the first three figures of it in column N ; then pass along a horizontal line until you come to the column ...
Página 5
... mantissa of the log- arithm of this number , and it will be the mantissa required . Thus , the logarithm of .0327 is 2.514548 ; that of 378.024 is 2.577520 . TO FIND THE NUMBER CORRESPONDING TO A GIVEN LOGARITHM . 6. The rule is the ...
... mantissa of the log- arithm of this number , and it will be the mantissa required . Thus , the logarithm of .0327 is 2.514548 ; that of 378.024 is 2.577520 . TO FIND THE NUMBER CORRESPONDING TO A GIVEN LOGARITHM . 6. The rule is the ...
Página 8
... mantissa . Example . Find the 4th root of .00000081 . The logarithm of this num- ber is 7.908485 , which is equal to 8 +1.908485 , and one - fourth of this is 2.477121 ; the number corresponding to this logarithm is .03 : hence .03 is ...
... mantissa . Example . Find the 4th root of .00000081 . The logarithm of this num- ber is 7.908485 , which is equal to 8 +1.908485 , and one - fourth of this is 2.477121 ; the number corresponding to this logarithm is .03 : hence .03 is ...
Contenido
Definitions and principles | 3 |
Definitions | 11 |
ADJUSTMENT AND USE OF INSTRUMENTS | 21 |
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Otras ediciones - Ver todas
The Field Engineer: A Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2015 |
The Field Engineer, a Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2016 |
Términos y frases comunes
100 feet long 100-feet chords called central angle chord 100 feet column cross-hair Cube Roots decimals deflection angle deflection distance degree of curvature degree of curve Diff divided elevation engineer equal Example feet 8 inches figure find the radius fixed foregoing frog angle Full Gauge gauge of track gauge side grade ground Hypsometry index angle instrument intersection angle length of switch-rail located logarithm magnetic bear Main frog dist main track mantissa mark measure method middle frog middle ordinate middle point minutes Multiply outer rail parallel perpendicular quotient radii radius REVERSED CURVE screws Sine 1 Cotang Square Roots stake standard gauge sub-chord subtended Subtract Suppose Table XVI tabular tance Tang tangent A B tangential angle tangential distance telescope terminal tangent tion toe of switch Trigonometry turnout curve vernier versin ΙΟ ΤΑΝ