A Treatise on Surveying,: Containing the Theory and Practice: : to which is Prefixed a Perspicuous System of Plane Trigonometry. : The Whole Clearly Demonstrated and Illustrated by a Large Number of Appropriate Examples. : Particularly Adapted to the Use of SchoolsKimber and Sharpless, no. 93, Market Street, and John Richardson, no. 244, Market Street., 1820 - 206 páginas |
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Resultados 6-10 de 24
Página 33
... divisions in the altitude , along BC , will be 100th parts . If HE be tens , EB will be units , and BC will be 10th parts . If HE be hundreds , BE will be tens , and BC units . And so on , each set of divisions being tenth parts of the ...
... divisions in the altitude , along BC , will be 100th parts . If HE be tens , EB will be units , and BC will be 10th parts . If HE be hundreds , BE will be tens , and BC units . And so on , each set of divisions being tenth parts of the ...
Página 37
... division 10 , 20 , 30 , & c . draw lines parallel to CB , and meeting CD in 10 , 20 , 30 , & c . and CD will be a line of sines . From the centre C , through the divisions of the arc BD , draw lines meeting BE , in 10 , 20 , 30 , & c ...
... division 10 , 20 , 30 , & c . draw lines parallel to CB , and meeting CD in 10 , 20 , 30 , & c . and CD will be a line of sines . From the centre C , through the divisions of the arc BD , draw lines meeting BE , in 10 , 20 , 30 , & c ...
Página 39
... division in the quadrant , right lines be drawn per- pendicular to CB , the sine of every minute of the qua- drant , to the radius CB will be exhibited . The lengths of these lines being computed and arranged in a table , constitute ...
... division in the quadrant , right lines be drawn per- pendicular to CB , the sine of every minute of the qua- drant , to the radius CB will be exhibited . The lengths of these lines being computed and arranged in a table , constitute ...
Página 41
... division being divided into ten parts , distinguish- ed by lines of about half the length of the primary divisions . The primary divisions on the second part of the scale , are estimated according to the value set upon the unit on the ...
... division being divided into ten parts , distinguish- ed by lines of about half the length of the primary divisions . The primary divisions on the second part of the scale , are estimated according to the value set upon the unit on the ...
Página 42
... divisions must be estimated according to the value set upon the primary divisions . Sines . The line of sines , marked Sin . is numbered from the left hand of the scale towards the right , 1 , 2 , 3 , 4 , & c . to 10 , then 20 , 30 , 40 ...
... divisions must be estimated according to the value set upon the primary divisions . Sines . The line of sines , marked Sin . is numbered from the left hand of the scale towards the right , 1 , 2 , 3 , 4 , & c . to 10 , then 20 , 30 , 40 ...
Términos y frases comunes
ABCD ABFD acres adjacent adjacent angles angle ABC angle opposite angled triangle base bearing and distance breadth Calculation centre Co-secant Secant Co-sine Co-tang column cube root decimal DEMONSTRATION departure corresponding diff difference of latitude Dist divide division line draw equal EXAMPLES feet figures find the angle find the area four-pole chains fourth term given angle given area given bearing given number given ratio given side John Gummere Lat Dep latitude and departure length logarithm M.
M. Sine measured meridian distance natural number off-sets parallel parallelogram perches perpendicular quired quotient radius rectangle remainder Required the area right angle right line right-angled triangle RULE semiperimeter side AB side AC square root station stationary line subtract survey tance Tang tangent tract of land trapezium trapezoid triangle ABC trigonometry