A Treatise on Surveying: In which the Theory and Practice are Fully Explained. Preceded by a Short Treatise on Logarithms: and Also by a Compendious System of Plane Trigonometry. The Whole Illustrated by Numerous ExamplesE.C. & J. Biddle, 1865 - 428 sider |
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Resultat 1-5 av 34
Side 21
... column , and the fourth , at the head . Thus , if the number were 8976 , the last four figures 3083 of the mantissa of its loga- rithm would be found in the column headed 6 ; the first two , 95 , found in the second column , being ...
... column , and the fourth , at the head . Thus , if the number were 8976 , the last four figures 3083 of the mantissa of its loga- rithm would be found in the column headed 6 ; the first two , 95 , found in the second column , being ...
Side 22
... column . Thus , if the num- ber were 445.8 , look for 445 in the column headed N , and opposite thereto , in the column headed 8 , the figures 9140 are found ; these affixed to 64 , found in the first column , give 649140 for the ...
... column . Thus , if the num- ber were 445.8 , look for 445 in the column headed N , and opposite thereto , in the column headed 8 , the figures 9140 are found ; these affixed to 64 , found in the first column , give 649140 for the ...
Side 23
... columns of logarithms for the one near- est to the decimal part of the given logarithm : the first three figures of the natural number will be found in the column marked N ; and the fourth , at the top of the column in which the ...
... columns of logarithms for the one near- est to the decimal part of the given logarithm : the first three figures of the natural number will be found in the column marked N ; and the fourth , at the top of the column in which the ...
Side 29
... column ; but in the addition , instead of em- ploying the figures as they appear in the subtractive num- ber , the complement of the first significant figure to ten , and of the others to nine , should be employed . As an example of the ...
... column ; but in the addition , instead of em- ploying the figures as they appear in the subtractive num- ber , the complement of the first significant figure to ten , and of the others to nine , should be employed . As an example of the ...
Side 58
... column headed properly , and opposite the minutes , will be the function required . If the degrees are 45 or upwards they will be found at the bottom , and the minutes at the 58 [ CHAP . III . PLANE TRIGONOMETRY . Tables of ...
... column headed properly , and opposite the minutes , will be the function required . If the degrees are 45 or upwards they will be found at the bottom , and the minutes at the 58 [ CHAP . III . PLANE TRIGONOMETRY . Tables of ...
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A Treatise on Surveying: In which the Theory and Practice are Fully ... Samuel Alsop Uten tilgangsbegrensning - 1857 |
A Treatise on Surveying: In Which the Theory and Practice Are Fully ... Samuel Alsop Ingen forhåndsvisning tilgjengelig - 2018 |
Vanlige uttrykk og setninger
ABCD acres adjacent angles adjacent sides bearings and distances calculate the area centre chains circle column compass correction Cosine Cotang decimal deflection determine Diff difference of latitude Dist divided division line double departure draw east equal error EXAMPLES field-notes figure given area given line given point Given the bearings horizontal hour angle inch instrument latitude and departure length line running logarithm mean proportional measured meridian method multiplier needle number of degrees offsets opposite parallel parallelogram perpendicular plat plate Polaris Problem protractor quotient radius ratio rectangle right angles right ascension rule scale sight sine square station straight line subtract survey surveyor Take the difference tance Tang tangent telescope theodolite tract of land transit trapezium triangle Trigonometry vernier whence
Populære avsnitt
Side 38 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Side 70 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Side 27 - Root of a Number, Divide the logarithm of the number by the index of the required root.
Side 33 - When one straight line meets another, so as to make two adjacent angles equal, each of these angles is called a right angle; and the first line is said to be perpendicular to the second.
Side 195 - To multiply a decimal by 10, 100, 1000, &c., remove the decimal point as many places to the right as there are ciphers in the multiplier ; and if there be not places enough in the number, annex ciphers.
Side 73 - ... will be — As the base or sum of the segments 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.
Side 37 - If two triangles have two sides and the included angle of one respectively equal to the sides and the included angle of the other, the triangles are congruent.
Side 126 - If two triangles have two angles, and the included side of the one equal to two angles and the included side of the other, they are equal in all their parts.
Side 39 - The angle at the centre of a circle is double the angle at the circumference on the same arc.
Side 39 - The square of the hypothenuse of a right angled triangle is equal to the sum of the squares of both the other sides.