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 xi
... triangles VIII . Right - angled plane triangles ADJUSTMENT AND USE OF INSTRUMENTS . IX . General remarks on adjustment 13 15 16 18 23 X. The level . 24 To bring the intersection of the cross - hairs into the optical axis of the ...
... triangles VIII . Right - angled plane triangles ADJUSTMENT AND USE OF INSTRUMENTS . IX . General remarks on adjustment 13 15 16 18 23 X. The level . 24 To bring the intersection of the cross - hairs into the optical axis of the ...
Página 11
... triangle there are six parts , -three sides and three angles . When three of these parts are given , one being a side , the remaining parts may be found by computation . The operation of finding the unknown parts is called the solu ...
... triangle there are six parts , -three sides and three angles . When three of these parts are given , one being a side , the remaining parts may be found by computation . The operation of finding the unknown parts is called the solu ...
Página 15
... triangle , as one of the sides is to another , so is the sine of the angle opposite to the former to the sine of the angle opposite to the latter . 3. In any plane triangle , as the sum of the sides about the vertical angle is to their ...
... triangle , as one of the sides is to another , so is the sine of the angle opposite to the former to the sine of the angle opposite to the latter . 3. In any plane triangle , as the sum of the sides about the vertical angle is to their ...
Página 16
... TRIANGLES . 1. It is usually , though not always , best to work the propor- tions in trigonometry by means of logarithms , taking the logarithm of the first term from the sum of the logarithms of ... TRIANGLES . Solution of plane triangles.
... TRIANGLES . 1. It is usually , though not always , best to work the propor- tions in trigonometry by means of logarithms , taking the logarithm of the first term from the sum of the logarithms of ... TRIANGLES . Solution of plane triangles.
Página 17
... B. Deducting half the difference from half the sum = 24 ° 26 ' the smaller angle , A. This case is susceptible of solution also by means of propo- CASE III . 6. When the three sides of a sition 6 . SOLUTION OF PLANE TRIANGLES . 117.
... B. Deducting half the difference from half the sum = 24 ° 26 ' the smaller angle , A. This case is susceptible of solution also by means of propo- CASE III . 6. When the three sides of a sition 6 . SOLUTION OF PLANE TRIANGLES . 117.
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