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 |
Dentro del libro
Página 12
... according as the multiplier consists of one or two figures ; then add the remaining figure or figures of the product to the logarithm first taken out of the table , and the sum will be the logarithm required . Thus , let it be required ...
... according as the multiplier consists of one or two figures ; then add the remaining figure or figures of the product to the logarithm first taken out of the table , and the sum will be the logarithm required . Thus , let it be required ...
Página 14
... logarithm from the next greater in the table , and also from the given logarithm ; to the latter dif ( six figures are required , and divide the number ference annex one or two ciphers , according as five or 14 LOGARITHMS .
... logarithm from the next greater in the table , and also from the given logarithm ; to the latter dif ( six figures are required , and divide the number ference annex one or two ciphers , according as five or 14 LOGARITHMS .
Página 41
... primary divisions on the second part of the scale , are estimated according to the value set upon the unit on the left hand of the scale : If the first 1 be considered F • as a unit , then the first 1 , PLANE TRIGONOMETRY . 41 .
... primary divisions on the second part of the scale , are estimated according to the value set upon the unit on the left hand of the scale : If the first 1 be considered F • as a unit , then the first 1 , PLANE TRIGONOMETRY . 41 .
Página 42
... 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 , & c . to 90 , where it ...
... 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 , & c . to 90 , where it ...
Página 106
... according to that bearing , and to have its straight edge parallel to the meridian ; this last may always be done by applying the centre to the station point , and making the preceding distance line , produced if neces- sary , cut the ...
... according to that bearing , and to have its straight edge parallel to the meridian ; this last may always be done by applying the centre to the station point , and making the preceding distance line , produced if neces- sary , cut the ...
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