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 ...D. Van Nostrand Company, 1908 - 345 páginas |
Dentro del libro
Página 13
... cotang . , as the case may be ; the number there found is the logarithm sought . Thus , log . sin . 19 ° 55 ' . log . tang . 19 ° 55 ' . • 9.532312 9.559097 3. If the angle is greater than 45 ° , look for the degrees at the bottom of ...
... cotang . , as the case may be ; the number there found is the logarithm sought . Thus , log . sin . 19 ° 55 ' . log . tang . 19 ° 55 ' . • 9.532312 9.559097 3. If the angle is greater than 45 ° , look for the degrees at the bottom of ...
Página 19
... . 1 ; tang . = - sin . ; cotang . = COS . COS . sin . 1 tang . 1 1 sec . = ; cosec . : versine : 1 - cos .; co - versine = 1— sin . CO8 . sin . : 1 ADJUSTMENT AND USE OF INSTRUMENTS . IX.-XV. 1 RIGHT - ANGLED PLANE TRIANGLES . 19.
... . 1 ; tang . = - sin . ; cotang . = COS . COS . sin . 1 tang . 1 1 sec . = ; cosec . : versine : 1 - cos .; co - versine = 1— sin . CO8 . sin . : 1 ADJUSTMENT AND USE OF INSTRUMENTS . IX.-XV. 1 RIGHT - ANGLED PLANE TRIANGLES . 19.
Página 198
... Cotang . Infinite . 60 13 : 536274 235244 58 59 059153 57 12-934214 56 837304 55 758122 54 691175 53 633183 52 1 D. 1 0.000000 00 6.463726 501717 764756 293485 940847 208231 7 : 065786 161517 162696 131969 241878 111578 308825 99653 ...
... Cotang . Infinite . 60 13 : 536274 235244 58 59 059153 57 12-934214 56 837304 55 758122 54 691175 53 633183 52 1 D. 1 0.000000 00 6.463726 501717 764756 293485 940847 208231 7 : 065786 161517 162696 131969 241878 111578 308825 99653 ...
Página 199
... Cotang : 1 60 11967 11.758079 750898 59 736885 57 730044 56 55 8-241921 249102 11772 256165 11584 743835 263115 11402 269956 11225 276691 11054 723309 283323 10887 716677 289856 10726 710144 296292 10570 703708 302634 10418 697366 04 ...
... Cotang : 1 60 11967 11.758079 750898 59 736885 57 730044 56 55 8-241921 249102 11772 256165 11584 743835 263115 11402 269956 11225 276691 11054 723309 283323 10887 716677 289856 10726 710144 296292 10570 703708 302634 10418 697366 04 ...
Página 200
... Cotang . 0 18-542819 6004 9-999735 07 8-543084 11 456916 1 546422 5955 999731 07 546691 453309 56 60 RRTBOTAL WARARLE Kanaa -AMAKAKAA¬ 783 # 49598 5884395388 ) 549995 5906 999726 07 550268 449732 553539 5858 999722 08 553817 446183 ...
... Cotang . 0 18-542819 6004 9-999735 07 8-543084 11 456916 1 546422 5955 999731 07 546691 453309 56 60 RRTBOTAL WARARLE Kanaa -AMAKAKAA¬ 783 # 49598 5884395388 ) 549995 5906 999726 07 550268 449732 553539 5858 999722 08 553817 446183 ...
Términos y frases comunes
A. D. MIN adjustment apex distance backsight called central angle CHORD column cosec Cosine 1 Sine cross-hair Cube Roots cubic DATARIO decimal deflection distance degree of curvature degree of curve Diff divided elevation equal equivalent Example feet long figure fixed foregoing formation slope frog angle gauge of track gauge side given angle grade ground inches index angle instrument height intersection angle located logarithm M.
M. I Sine Main frog dist mantissa mark measure method metres middle ordinate minutes multiply number corresponding observation opposite outer rail perpendicular plane triangle quotient radii radius range REVERSED CURVE Sine 1 Cotang Square Roots standard gauge sub-chord Subtract Suppose switch-rail Table XVI tabular tance Tang tangential angle tangential distance telescope terminal tangent tion toe of switch Trigonometry turnout curve vernier vertical ΙΟ
Pasajes populares
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 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
Página 13 - If the arc, or angle, is less than 45°, look for the degrees at the top of the page, and for the minutes in the...
Página 17 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Página 3 - THE LOGARITHM: of a number is the exponent of the power to which it is necessary to raise a fixed number, to produce the given number.
Página 15 - Is to the sum of the other two sides, So is the difference of those sides To the difference of the segments of the base.
Página 15 - AC, (Fig. 25.) is to their difference ; as the tangent of half the sum of the angles ACB and ABC, to the tangent of half their difference.
Página 13 - If the 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...
Página 15 - In any plane triangle, as twice the rectangle under any two sides is to the difference of the sum of the squares of those two sides and the square of the base, so is the radius to the cosine of the angle contained by the two sides.
Página 11 - The operation of finding the unknown parts is called the solution of the triangle. 2. A plane angle is measured by the arc of a circle included between its sides; the centre of the circle being at the vertex, and its radius being 1. The circle, for convenience, is divided into 360 equal parts called degrees; 90 of these parts are included in a quadrant, which includes one-quarter of the circle, and is the measure of a right angle. Each degree is further divided into 00 equal parts called minutes,...