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 EngineerD. Van Nostrand Company, 1890 - 339 páginas |
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Página 7
... ROOTS BY MEANS OF LOGARITHMS . 11. Find the logarithm of the number , and divide it by the index of the root ; then find the number corresponding to the Example . Find the cube root of 4,096 . Operation resulting logarithm , and it will ...
... ROOTS BY MEANS OF LOGARITHMS . 11. Find the logarithm of the number , and divide it by the index of the root ; then find the number corresponding to the Example . Find the cube root of 4,096 . Operation resulting logarithm , and it will ...
Página 160
... CUBES , ETC. , OF. Degree Radius of Curve . in Metres . Loga- Arithme- Mid . Ord . rithm of tical Com- Chord Radius . plement . 20 Metres . Deflec- tion Dis- tial Dis- tance ... Cubes . Square Roots . Cube Roots . 160 METRIC CURVE TABLE .
... CUBES , ETC. , OF. Degree Radius of Curve . in Metres . Loga- Arithme- Mid . Ord . rithm of tical Com- Chord Radius . plement . 20 Metres . Deflec- tion Dis- tial Dis- tance ... Cubes . Square Roots . Cube Roots . 160 METRIC CURVE TABLE .
Página 161
... CUBES , ETC. , OF NUMBERS FROM 1 TO 1042 . NOTE . If N be taken to represent any number in any column of this table , then the algebraic significance of the re- maining numbers , on the same ... CUBES , SQUARE AND CUBE ROOTS TABLE XI. ...
... CUBES , ETC. , OF NUMBERS FROM 1 TO 1042 . NOTE . If N be taken to represent any number in any column of this table , then the algebraic significance of the re- maining numbers , on the same ... CUBES , SQUARE AND CUBE ROOTS TABLE XI. ...
Página 162
... CUBE ROOTS OF NUMBERS No. Squares . Cubes . Square Roots . Cube Roots . Reciprocals . 12345678SOIG 1 1-0000000 1-0000000 100000000 8 1-4142136 1.2599210 500000000 27 1-7320508 1-4422496 333333333 16 64 2-0000000 1-5874011 250000000 125 ...
... CUBE ROOTS OF NUMBERS No. Squares . Cubes . Square Roots . Cube Roots . Reciprocals . 12345678SOIG 1 1-0000000 1-0000000 100000000 8 1-4142136 1.2599210 500000000 27 1-7320508 1-4422496 333333333 16 64 2-0000000 1-5874011 250000000 125 ...
Página 163
... Roots . Cube Roots. Squares . Cubes . Square Roots . Cube Roots . Reciprocals . 2601 132651 7.1414284 3.7084298 019607843 2704 140608 7.2111026 3-7325111 019230769 2809 148877 7-2801099 3.7562858 018867925 2916 157464 7.3484692 3-7797631 ...
... Roots . Cube Roots. Squares . Cubes . Square Roots . Cube Roots . Reciprocals . 2601 132651 7.1414284 3.7084298 019607843 2704 140608 7.2111026 3-7325111 019230769 2809 148877 7-2801099 3.7562858 018867925 2916 157464 7.3484692 3-7797631 ...
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A. D. MIN adjustment apex distance backsight called central angle CHORD column Cosine 1 Sine cross-hair Cube Roots decimal deflection distance degree of curvature degree of curve Diff divided engineer equal error Example feet figure fixed FOOD foregoing formation slope frog angle gauge of track gauge side ground Hence inches index angle instrument height intersection angle located logarithm Main frog dist mantissa mark measure method metres metric curve middle frog middle ordinate middle point minutes multiplied natural sine number corresponding observation opposite outer rail parallel perpendicular plane triangle Polaris quotient radii radius range REVERSED CURVE rule Sine 1 Cotang Square Roots sub-chord subtended Subtract Suppose switch-rail Table XVI tabular tance Tang tangential angle tangential distance telescope terminal tangent tion toe of switch transitman Trigonometry turnout curve vernier vertical ΙΟ