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 Seiten |
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Seite 27
... multiplier , instead of adding this to the pro- duct of the index , subtract it : the difference will be the index of the product , and will always be negative . Ex . 1. Required the fourth power of 5.5 . 5.5 915.065 log . 0.740363 4 ...
... multiplier , instead of adding this to the pro- duct of the index , subtract it : the difference will be the index of the product , and will always be negative . Ex . 1. Required the fourth power of 5.5 . 5.5 915.065 log . 0.740363 4 ...
Seite 230
... multipliers . They are found by the following process . Assuming the first , Aa + Bb , at pleasure , designate it either east or west . In the figure , the line NS being to the west of AB , the multiplier is east . The double de ...
... multipliers . They are found by the following process . Assuming the first , Aa + Bb , at pleasure , designate it either east or west . In the figure , the line NS being to the west of AB , the multiplier is east . The double de ...
Seite 231
... multiplier is west , the meridian being to the east of the line AB . The subsequent multipliers are found as follow :-( Bb + Aa ) + ( pB + qC ) = Bb + Cc ; ( Bb + Cc ) — ( Ci — qC ) = Cc + Dd ; ( Cc + Dd ) — ( Ci + Dt ) Dd - Ee ; ( Dt + ...
... multiplier is west , the meridian being to the east of the line AB . The subsequent multipliers are found as follow :-( Bb + Aa ) + ( pB + qC ) = Bb + Cc ; ( Bb + Cc ) — ( Ci — qC ) = Cc + Dd ; ( Cc + Dd ) — ( Ci + Dt ) Dd - Ee ; ( Dt + ...
Seite 232
... multiplier for the first side , marking it E. for east or W. for west , as may be preferred . Then , if this multiplier and the double departure corre- sponding to the second side are of the same name , add them together , and place the ...
... multiplier for the first side , marking it E. for east or W. for west , as may be preferred . Then , if this multiplier and the double departure corre- sponding to the second side are of the same name , add them together , and place the ...
Seite 270
... multipliers , assuming that corresponding to the division line to be 0 . Multiply the known latitudes by the ... multiplier : the quotient will be the latitude of that side . Place it in its proper column . Take the difference ...
... multipliers , assuming that corresponding to the division line to be 0 . Multiply the known latitudes by the ... multiplier : the quotient will be the latitude of that side . Place it in its proper column . Take the difference ...
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A Treatise on Surveying: In Which the Theory and Practice Are Fully ... Samuel Alsop Keine Leseprobe verfügbar - 2018 |
Häufige Begriffe und Wortgruppen
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
Beliebte Passagen
Seite 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.
Seite 70 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Seite 27 - Root of a Number, Divide the logarithm of the number by the index of the required root.
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 39 - The angle at the centre of a circle is double the angle at the circumference on the same arc.
Seite 39 - The square of the hypothenuse of a right angled triangle is equal to the sum of the squares of both the other sides.