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 12
... decimal part of the logarithm . Thus the log . of 5163 is 3.71290 , and the log . of .6387 is -1.80530 . If the given number consist of five or six figures , find the logarithm of the four left hand figures as before ; then take the ...
... decimal part of the logarithm . Thus the log . of 5163 is 3.71290 , and the log . of .6387 is -1.80530 . If the given number consist of five or six figures , find the logarithm of the four left hand figures as before ; then take the ...
Página 13
... Decimal part of the log . As the given number is a decimal , and has one cipher between the decimal point and first significant figure , the index must be - 2 ; therefore the log . of .0131755 is -2.11977 . EXAMPLES . 1. Required the ...
... Decimal part of the log . As the given number is a decimal , and has one cipher between the decimal point and first significant figure , the index must be - 2 ; therefore the log . of .0131755 is -2.11977 . EXAMPLES . 1. Required the ...
Página 14
... decimal , and must have one cipher less placed between the decimal point and first significant figure on the left hand , than the number expressed by the index . Thus the natural num- ber corresponding to the logarithm 2.90233 is 798.6 ...
... decimal , and must have one cipher less placed between the decimal point and first significant figure on the left hand , than the number expressed by the index . Thus the natural num- ber corresponding to the logarithm 2.90233 is 798.6 ...
Página 17
... decimal parts of the logarithms as before , and if there be any to carry from the decimal part , add it to the affirmative index or indices , or else subtract it from the negative . Then add the indices together , when they are all of ...
... decimal parts of the logarithms as before , and if there be any to carry from the decimal part , add it to the affirmative index or indices , or else subtract it from the negative . Then add the indices together , when they are all of ...
Página 18
... decimal part of the logarithms , which subtracted from 6 , the sum of the negative indices , leaves 4 , which is the index of the sum of the logarithms , and is negative , because the sum of the negative indices is the greater . 3 ...
... decimal part of the logarithms , which subtracted from 6 , the sum of the negative indices , leaves 4 , which is the index of the sum of the logarithms , and is negative , because the sum of the negative indices is the greater . 3 ...
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