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
Resultados 6-10 de 27
Página 39
... taken from a table of logarithms and properly arranged form the table of loga- rithmic or artificial sines . In like manner the logarithmic tangents and secants are to be understood . The method by which the sines are computed is too ...
... taken from a table of logarithms and properly arranged form the table of loga- rithmic or artificial sines . In like manner the logarithmic tangents and secants are to be understood . The method by which the sines are computed is too ...
Página 49
... taken from the same scale of equal parts , and B as a centre , describe the arc ab , cutting AC in the point A , and join BA ; then is ABC the triangle required : the side AC , measured by the scale of equal parts will be 1.54 , and the ...
... taken from the same scale of equal parts , and B as a centre , describe the arc ab , cutting AC in the point A , and join BA ; then is ABC the triangle required : the side AC , measured by the scale of equal parts will be 1.54 , and the ...
Página 69
... the half of which is 62 ° 10 ′ . Then by Case 3 . * The angles may be taken with a common surveyor's compass ; or BC + AC : BC AC : tang . - more accurately with an instrument called a theodolite . PLANE TRIGONOMETRY . 69.
... the half of which is 62 ° 10 ′ . Then by Case 3 . * The angles may be taken with a common surveyor's compass ; or BC + AC : BC AC : tang . - more accurately with an instrument called a theodolite . PLANE TRIGONOMETRY . 69.
Página 72
... the circle passes through the points A , C , B ; but then the angle ADC , BDC , unless they have been erroneously 1 3. In the triangle CAE we have given the side taken , will be respectively equal to the angles ABC , BAC . 72 APPLICATION ...
... the circle passes through the points A , C , B ; but then the angle ADC , BDC , unless they have been erroneously 1 3. In the triangle CAE we have given the side taken , will be respectively equal to the angles ABC , BAC . 72 APPLICATION ...
Página 74
... taken with an instrument called a quadrant , the arc of which is divided into 90 equal parts or degrees , and those when the instrument is sufficiently large may be subdivided into halves , quarters , & c . From the centre a plummet is ...
... taken with an instrument called a quadrant , the arc of which is divided into 90 equal parts or degrees , and those when the instrument is sufficiently large may be subdivided into halves , quarters , & c . From the centre a plummet is ...
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