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 |
Dentro del libro
Página 12
... angle is the distance from one extremity of the arc enclosing it , to the diameter , through the other extrem- ity . Thus PM is the sine of the angle MOA . = The cosine of an angle is the sine of the complement of the angle . Thus N M ...
... angle is the distance from one extremity of the arc enclosing it , to the diameter , through the other extrem- ity . Thus PM is the sine of the angle MOA . = The cosine of an angle is the sine of the complement of the angle . Thus N M ...
Página 13
... angle is greater than 45 ° , look for the degrees at the bottom of the page , and for the minutes in the right - hand column ; then follow the corresponding line towards the left , till you come to the column designated at the bottom by ...
... angle is greater than 45 ° , look for the degrees at the bottom of the page , and for the minutes in the right - hand column ; then follow the corresponding line towards the left , till you come to the column designated at the bottom by ...
Página 15
... angle opposite to the latter . 3. In any plane triangle , as the sum of the sides about the vertical angle is to their difference , so is the tangent of half the sum of the angles at the base to the tangent of half their difference . 4 ...
... angle opposite to the latter . 3. In any plane triangle , as the sum of the sides about the vertical angle is to their difference , so is the tangent of half the sum of the angles at the base to the tangent of half their difference . 4 ...
Página 16
... angle is to its opposite side , So is the sine of either of the other angles to its opposite side . 4. If an angle be required , say , As one of the given sides is to the sine of its opposite angle , So is the other given side to the ...
... angle is to its opposite side , So is the sine of either of the other angles to its opposite side . 4. If an angle be required , say , As one of the given sides is to the sine of its opposite angle , So is the other given side to the ...
Página 17
... angle from 180 ° ; the remainder will be the sum of the other two angles . Then , by proposition 3 , - As the sum of the given sides is to their difference , So is the tangent of half the sum of the remaining angles to the tangent of ...
... angle from 180 ° ; the remainder will be the sum of the other two angles . Then , by proposition 3 , - As the sum of the given sides is to their difference , So is the tangent of half the sum of the remaining angles to the tangent of ...
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