Surveying and Navigation, with a Preliminary Treatise on Trigonometry and MensurationVan Antwerp, Braggs & Company, 1864 - 490 páginas |
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Página iii
... opposite side to the hypotenuse , etc. The historical method of considering the sine , co - sine , tan- gent , etc. , as linear functions of the arc , explains the origin of these terms - avoids the ambiguity of the word ratio ...
... opposite side to the hypotenuse , etc. The historical method of considering the sine , co - sine , tan- gent , etc. , as linear functions of the arc , explains the origin of these terms - avoids the ambiguity of the word ratio ...
Página 13
... Opposite 367 , in the column headed N , and under the column headed 5 , we find 526 , to which prefix the two figures , 56 , in the column . headed 0 , and we have for the mantissa .56526 . .. log 3675 = 3.56526 . 2. Find the logarithm ...
... Opposite 367 , in the column headed N , and under the column headed 5 , we find 526 , to which prefix the two figures , 56 , in the column . headed 0 , and we have for the mantissa .56526 . .. log 3675 = 3.56526 . 2. Find the logarithm ...
Página 16
... opposite 107 in the column headed N. Hence , without reference to the decimal point , the number corresponding is 1078 ; but since the characteristic is 2 , the number is entirely decimal , and one 0 imme- diately follows the decimal ...
... opposite 107 in the column headed N. Hence , without reference to the decimal point , the number corresponding is 1078 ; but since the characteristic is 2 , the number is entirely decimal , and one 0 imme- diately follows the decimal ...
Página 34
... opposite the angle OCR , is equal to OR ' , opposite the equal angle OCR ' . Since OR is esti- mated upward , and OR ' downward , they have contrary signs ; hence , OR - OR ' . But OR is the tangent of the arc OT , and OR ' is the 34 ...
... opposite the angle OCR , is equal to OR ' , opposite the equal angle OCR ' . Since OR is esti- mated upward , and OR ' downward , they have contrary signs ; hence , OR - OR ' . But OR is the tangent of the arc OT , and OR ' is the 34 ...
Página 36
... opposite the angle O'CS , is equal to O'S ' , opposite the equal angle O'CS ' . Since O'S is estimated to the right , and O'S ' to the left , they have contrary signs ; hence , O'S O'S ' . But O'S is the co - tangent of OT , and O'S ...
... opposite the angle O'CS , is equal to O'S ' , opposite the equal angle O'CS ' . Since O'S is estimated to the right , and O'S ' to the left , they have contrary signs ; hence , O'S O'S ' . But O'S is the co - tangent of OT , and O'S ...
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Términos y frases comunes
a. c. log ABCD adjacent angles adjacent sides altitude angle is equal arc increases base line C₁ chains clamp co-sine compass cosec Cotang denote departure diameter difference of level divided east escribed circles Examples feet field notes Find the angle find the area formulas frustum given side height hence horizontal hypotenuse included angle increases from 90 instrument intersection latitude links dist logarithm longitude M.
M. Cosine M.
M. Sine mantissa meander miles minus needle negative number corresponding offsets opposite angle parallel sailing parallelogram perpendicular plane plane sailing positive quarter section corner radius rhumb line right angle sailing secant ship side adjacent sin A sin solar compass spherical triangle stake standard parallel station survey surveyor Tang tangent telescope trapezoid variation vernier versed-sine vertex vertical Willamette Meridian
Pasajes populares
Página 110 - I. The sine of the middle part is equal to the product of the tangents of the adjacent parts.
Página 34 - If two triangles have two angles and the included side of the one, equal to two angles and the included side of the other, each to each, the two triangles will be equal.
Página 258 - All the corners marked in the surveys, returned by the surveyor general, or by the surveyor of the lands south of the state of Tennessee, respectively, shall be established as the proper corners of sections, or subdivisions of sections, which they were intended to designate ; and the corners of half and quarter sections, not marked on said surveys, shall be placed as nearly as possible equidistant from those two corners which stand on the same line.
Página 22 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 19 - To Divide One Number by Another, Subtract the logarithm of the divisor from the logarithm of the dividend, and obtain the antilogarithm of the difference.
Página 144 - Any angle is greater than the difference between 180° and the sum of the other two angles.
Página 124 - That is, the sines of the sides of a spherical triangle are proportional to the sines of the opposite angles.
Página 65 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Página 145 - A cos 6 = cos a cos c + sin a sin c cos B cos c = cos a cos 6 + sin a sin 6 cos C Law of Cosines for Angles cos A = — cos B...
Página 162 - Now, since the areas of similar polygons are to each other as the squares of their homologous sides...