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 39
The logarithms of those numbers 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 logarithms of those numbers 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 .
Página 49
Make BC = .7912 by a scale of equal parts , and draw CA , making the angle C = 33 ° 21 ' ; with the side AB = .98 , in the compasses , taken from the same scale of equal parts , and B as a centre , describe the arc ab , cutting AC in ...
Make BC = .7912 by a scale of equal parts , and draw CA , making the angle C = 33 ° 21 ' ; with the side AB = .98 , in the compasses , taken from the same scale of equal parts , and B as a centre , describe the arc ab , cutting AC in ...
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 more accurately with an instrument called a theodolite . a CAB + CBA САВ— СВА BC + AC : BC PLANE TRIGONOMETRY . 69 4.
... the half of which is 62 ° 10. Then by Case 3 . > * The angles may be taken with a common surveyor's compass ; or more accurately with an instrument called a theodolite . a CAB + CBA САВ— СВА BC + AC : BC PLANE TRIGONOMETRY . 69 4.
Página 72
... the circle passes through the points A , C , B ; but then the angle ADC , BDC , unless they have been erroneously 3. In the triangle CAE we have given the side taken , will be respectively equal to the angles ABC , BAC .
... the circle passes through the points A , C , B ; but then the angle ADC , BDC , unless they have been erroneously 3. In the triangle CAE we have given the side taken , will be respectively equal to the angles ABC , BAC .
Página 74
Angles of depression are taken in the same manner , except that then the eye is applied to the centre of the quadrant . Note . In finding the height of an object , it is best so to contrive it that the observed angle of altitude may be ...
Angles of depression are taken in the same manner , except that then the eye is applied to the centre of the quadrant . Note . In finding the height of an object , it is best so to contrive it that the observed angle of altitude may be ...
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Términos y frases comunes
ABCD according acres adjacent angle base bearing bearing and distance Calculation called centre circle Co-secant Co-sine Co-tang column Construction contained corresponding Courses decimal Deg Dist DEMONSTRATION describe difference distance divide division draw east equal EXAMPLES feet figures find the area given given angle given area given side greater half hand height hypothenuse join latitude and departure length less logarithm measured meeting meridian distance Note off-sets opposite parallel perches perpendicular preceding PROBLEM quotient radius ratio rectangle remainder Required the area right angle right line root RULE running scale Secant side side AC sine square station subtract survey taken Tang Tangent triangle ABC twice
Información bibliográfica
| Título | 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 Schools |
| Autor | John Gummere |
| Colaboradores | John Richardson, Thomas H. Palmer, Kimber & Sharpless |
| Edición | 3 |
| Editor | Kimber and Sharpless, no. 93, Market Street, and John Richardson, no. 244, Market Street., 1820 |
| Procedencia del original | Biblioteca Pública de Nueva York |
| Digitalizado | 12 Abr. 2011 |
| Largo | 206 páginas |
| Exportar cita | BiBTeX EndNote RefMan |