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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Página 14
... quired . Observing , that when the index of the given lo- garithm is affirmative , the integers in the number found must be one more than the number expressed by the in- dex ; but when the index of the given logarithm is nega- tive ...
... quired . Observing , that when the index of the given lo- garithm is affirmative , the integers in the number found must be one more than the number expressed by the in- dex ; but when the index of the given logarithm is nega- tive ...
Página 15
... quired natural number is 345.93 . Again let it be required to find the natural number corresponding to the logarithm 4.59859 , true to six fi- gures ; then , Given logarithm - - .59859 Next less - - - - 59857 , the natural number an ...
... quired natural number is 345.93 . Again let it be required to find the natural number corresponding to the logarithm 4.59859 , true to six fi- gures ; then , Given logarithm - - .59859 Next less - - - - 59857 , the natural number an ...
Página 16
... quired natural number is 39681.8 . EXAMPLES . 1. Required the natural number answering to the lo- garithm 1.88030 . Ans . 75.91 . 2. Required the natural number answering to the lo- garithm 5.37081 . Ans . 234861 . 3. Required the ...
... quired natural number is 39681.8 . EXAMPLES . 1. Required the natural number answering to the lo- garithm 1.88030 . Ans . 75.91 . 2. Required the natural number answering to the lo- garithm 5.37081 . Ans . 234861 . 3. Required the ...
Página 40
... quired . Note . The sine of an angle and of its supplement being the same , if the given number of degrees be above 90 , subtract ' them from 180 ° , and find the sine of the remainder . EXAMPLES .. 1. Required the sine of 32 ° 27 ' Ans ...
... quired . Note . The sine of an angle and of its supplement being the same , if the given number of degrees be above 90 , subtract ' them from 180 ° , and find the sine of the remainder . EXAMPLES .. 1. Required the sine of 32 ° 27 ' Ans ...
Página 48
... quired AC and AB . Ans . AC = 103.4 , and AB = 91.87 . 4. In a right - angled triangle , there are given the an- gle A = 56 ° 48 ' , and the base AB = 53.66 , to find the perpendicular BC and hypothenuse AC . Ans . BC = 82 and AC = 98 ...
... quired AC and AB . Ans . AC = 103.4 , and AB = 91.87 . 4. In a right - angled triangle , there are given the an- gle A = 56 ° 48 ' , and the base AB = 53.66 , to find the perpendicular BC and hypothenuse AC . Ans . BC = 82 and AC = 98 ...
Términos y frases comunes
ABCD ABFD acres adjacent adjacent angles angle ABC angle opposite angled triangle azimuth base bearing and distance breadth Calculation centre Co-secant Secant Co-sine Co-tang column decimal degrees 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 ratio given side John Gummere Lat Dep latitude and departure length logarithm measured meridian distance natural number off-sets parallel parallelogram perches perpendicular perpendicular BC quired quotient radius rectangle remainder Required the area right angle right line right-angled triangle RULE semiperimeter side AB side AC sine square root station stationary line subtract tance Tang Tangent tract of land trapezium trapezoid triangle ABC trigonometry