The Field Engineer: A Handy Book of Practice in the Survey, Location, and Trackwork of Railroads; Containing ... Rules and Tables ... Applicable to ... the Standard and the Narrow Gauge ...D. van Nostrand, 1880 - 318 páginas |
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Página 4
... column N of the table for 10 times or 100 times the amount of it ; oppo- site this multiple , in column O , will be found the mantissa . Thus the logarithm of 6 is 0.778151 ; that of 84 is 1.924279 . 3. If the number lie between 100 and ...
... column N of the table for 10 times or 100 times the amount of it ; oppo- site this multiple , in column O , will be found the mantissa . Thus the logarithm of 6 is 0.778151 ; that of 84 is 1.924279 . 3. If the number lie between 100 and ...
Página 5
... column D the correspond- ing tabular difference , multiply this by the decimal part , and add the product to the mantissa just found . The principle employed is that the differences of numbers are proportional to the differences of ...
... column D the correspond- ing tabular difference , multiply this by the decimal part , and add the product to the mantissa just found . The principle employed is that the differences of numbers are proportional to the differences of ...
Página 13
... column ; then follow the corresponding horizontal line till you come to the column designated at the top by sine , cosine , tang . , or cotang . , as the case may be ; the number there found is the logarithm sought . Thus , log . sin ...
... column ; then follow the corresponding horizontal line till you come to the column designated at the top by sine , cosine , tang . , or cotang . , as the case may be ; the number there found is the logarithm sought . Thus , log . sin ...
Página 14
... column of the table for the given logarithm ; if it is found there , the degrees are to be taken from the top or bottom , and the minutes from the left or right hand column , as the case may be . If the given logarithm is not found in ...
... column of the table for the given logarithm ; if it is found there , the degrees are to be taken from the top or bottom , and the minutes from the left or right hand column , as the case may be . If the given logarithm is not found in ...
Página 54
... column in Table XVI . , the number corresponding to the intersection angle , and divide it by the degree of curvature : the quotient will be the length required . Example . A 4 ° curve , I = 50 ° 16 ' ; to find the several functions ...
... column in Table XVI . , the number corresponding to the intersection angle , and divide it by the degree of curvature : the quotient will be the length required . Example . A 4 ° curve , I = 50 ° 16 ' ; to find the several functions ...
Otras ediciones - Ver todas
The Field Engineer: A Handy Book of Practice in the Survey, Location and ... William F. Shunk Sin vista previa disponible - 2008 |
The Field Engineer: A Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2017 |
Términos y frases comunes
100 feet long 100-feet chords adjustment apex distance called central angle column Cosine 1 Sine Cotang cross-hair Cube Roots decimals deflection distance degree of curvature DEGREE OF CURVE Diff divided elevation engineer equal Example feet figure fixed foregoing frog angle Full Gauge gauge of track gauge side gent ground index angle instrument intersection angle length of switch-rail located logarithm M.
M. I Sine Main frog dist mantissa mark measure method middle frog middle ordinate middle point minutes Multiply observation outer rail parallel perpendicular quotient radii radius range Reciprocals REVERSED CURVE right triangle screws slope Square Roots standard gauge straight line 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 vertical ΙΟ ΤΑΝ
Pasajes populares
Página 18 - ... the square of the hypothenuse is equal to the sum of the squares of the other two sides.
Página 4 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 11 - ... is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are designated respectively, by the characters ° ' ". For example, ten degrees, eighteen minutes, and fourteen seconds, would be written 10° 18
Página 4 - The logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers. log» MN = log» M + log