Crocker's Elements of land surveying. To which are added, Tables of six-figure logarithms, superintended by R. Farley1841 |
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Side 7
... horizontal rows of figures meet ; the first two are seen only in the first of the columns of logarithms . To these six figures prefix the proper index and decimal point . ( For the index , see the preceding page . ) Thus the logarithm ...
... horizontal rows of figures meet ; the first two are seen only in the first of the columns of logarithms . To these six figures prefix the proper index and decimal point . ( For the index , see the preceding page . ) Thus the logarithm ...
Side 86
... horizontal base , AE , was required ; and that at A , the clivity to B was 12 ° ; and length 760 ; the clivity from B to C , 14 ° , and length 320 ; the acclivity from thence to D , 11 ° , and length 400 ; and that the of declivity from ...
... horizontal base , AE , was required ; and that at A , the clivity to B was 12 ° ; and length 760 ; the clivity from B to C , 14 ° , and length 320 ; the acclivity from thence to D , 11 ° , and length 400 ; and that the of declivity from ...
Side 87
... . : DE = 520 :: co - s . of decliv . at D = 16 ° : dE = 499.9 - 10 . 2-716003 9.982842 2.698845 Then the sum of Ab + be + cd + dE = 1946.5 Examples for Practice . B C The horizontal breadth of = AE . PART IV . ] PRACTICAL TRIGONOMETRY 87.
... . : DE = 520 :: co - s . of decliv . at D = 16 ° : dE = 499.9 - 10 . 2-716003 9.982842 2.698845 Then the sum of Ab + be + cd + dE = 1946.5 Examples for Practice . B C The horizontal breadth of = AE . PART IV . ] PRACTICAL TRIGONOMETRY 87.
Side 88
Abraham Crocker Thomas Gamlen Bunt. Examples for Practice . B C The horizontal breadth of a glen , from the tree at A to that at B , is required ; having the descent from A to C given = 580 , and the ascent from C to B = 650 ; and the of ...
Abraham Crocker Thomas Gamlen Bunt. Examples for Practice . B C The horizontal breadth of a glen , from the tree at A to that at B , is required ; having the descent from A to C given = 580 , and the ascent from C to B = 650 ; and the of ...
Side 191
... horizontal and vertical angles , and determining the bearings of lines , or their inclinations . to the magnetic meridian . Fig . 15. represents one form of a small theodolite suited for the ordinary purposes of surveying . A is a ...
... horizontal and vertical angles , and determining the bearings of lines , or their inclinations . to the magnetic meridian . Fig . 15. represents one form of a small theodolite suited for the ordinary purposes of surveying . A is a ...
Andre utgaver - Vis alle
Crocker's Elements of Land Surveying. to Which Are Added, Tables of Six ... Abraham Crocker,Richard Farley Ingen forhåndsvisning tilgjengelig - 2023 |
Crocker's Elements of Land Surveying. to Which Are Added, Tables of Six ... Abraham Crocker,Richard Farley Ingen forhåndsvisning tilgjengelig - 2018 |
Crocker's Elements of Land Surveying. to Which Are Added, Tables of Six ... Abraham Crocker,Richard Farley Ingen forhåndsvisning tilgjengelig - 2023 |
Vanlige uttrykk og setninger
30 Cosine acres angular point Ansr base Bisect called centre chain circle circumference Co-s construction Cotang decimal describe the arc diagonal diameter Diff distance divided draw the line ellipse equilateral triangle EUCLID Examples for Practice Extend the compasses extent fence field field-book figure find the Area find the side geometrical given angle given line Gunter's scale half sum hypothenuse inches inscribed instrument Land-measuring length line drawn logarithm measured method Multiply natural number NATURAL SINES nonagon number of degrees parallel line parallel ruler parallelogram perches perpendicular polygon PROBLEM proportion protractor quantity radius regular polygon Required the area rhomboides rhombus right angles right line roods RULE scale of chords scale of equal scalenous triangle segment sextant side AC square links station subtracted Suppose tabular difference Tangent telescope theodolite transverse trapezium trapezoid triangle ABC Trigonometry vulgar fraction ΙΟ
Populære avsnitt
Side i - CROCKER'S ELEMENTS OF LAND SURVEYING. Fifth Edition, corrected throughout, and considerably improved and modernized, by TG BUNT, Land Surveyor, Bristol. To which are added, TABLES OF SIX-FIGURE LOGARITHMS, &c., superintended by RICHARD FARLEY, of the Nautical Almanac Establishment.
Side 4 - ... one less than the number of figures in the integral part of the natural number. The decimal part...
Side 8 - The logarithm of the quotient of two positive numbers is found by subtracting the logarithm of the divisor from the logarithm of the dividend. (6) The logarithm of a power of a positive number is found by multiplying the logarithm of the number by the exponent of the power. For, N" = (oT)
Side 123 - Or, from 8 times the chord of half the arc, subtract the chord of the whole arc, and $ of the remainder will be the length of the arc, nearly.
Side 61 - If a side be required, say, — As the sine of the given angle is to its opposite side, So is the sine of either of the other angles to its opposite side.
Side 272 - Two or more places are on a true level, when they are equally distant from the centre of the earth. Also, one place is higher than another, or...
Side 131 - This figure being a mean proportional between its circumscribed and inscribed circles, that is, equal to a circle whose diameter is a mean proportional between the axes of the ellipse, we...
Side 103 - From half the sum of the three sides subtract each side severally. Multiply the half sum and the three remainders...
Side 40 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Side 122 - To find the area of a sector of a circle. RULE I. — Multiply the radius by half the arc of the sector for the area.