Surveying and Navigation, with a Preliminary Treatise on Trigonometry and MensurationVan Antwerp, Braggs & Company, 1864 - 490 páginas |
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Página viii
... Sailing Parallel Sailing Middle Latitude Sailing Mercator's Sailing Current Sailing Plying to Windward Taking Departures TABLES PAGE 308 313 318 340 • 351 369 375 381 381 385 389 · 390 393 • 398 • 400 402 405 INTRODUCTIONHIV . OF ...
... Sailing Parallel Sailing Middle Latitude Sailing Mercator's Sailing Current Sailing Plying to Windward Taking Departures TABLES PAGE 308 313 318 340 • 351 369 375 381 381 385 389 · 390 393 • 398 • 400 402 405 INTRODUCTIONHIV . OF ...
Página 381
... sailing , parallel sailing , middle latitude sailing , Mercator's sailing , and current sailing . 379. The Mariner's Compass . The magnetic needle rests on a pivot , so as to turn freely . The compass box is suspended by gimbals or ...
... sailing , parallel sailing , middle latitude sailing , Mercator's sailing , and current sailing . 379. The Mariner's Compass . The magnetic needle rests on a pivot , so as to turn freely . The compass box is suspended by gimbals or ...
Página 384
... sailing an hour . The divisions of the line are marked by strings pass- ing through the line and knotted , the number of knots in the string indicating the number of parts between it and that point of the line where the divisions 384 ...
... sailing an hour . The divisions of the line are marked by strings pass- ing through the line and knotted , the number of knots in the string indicating the number of parts between it and that point of the line where the divisions 384 ...
Página 385
... sailing . PLANE SAILING . 384. Single Courses . Let P be the pole of the earth ; RQ , P the equator ; AD , a rhumb line divided into AB , BC , CD , etc. , parts so small that we may regard them as straight lines ; and the triangles ABE ...
... sailing . PLANE SAILING . 384. Single Courses . Let P be the pole of the earth ; RQ , P the equator ; AD , a rhumb line divided into AB , BC , CD , etc. , parts so small that we may regard them as straight lines ; and the triangles ABE ...
Página 386
... sail on ' a plane , replace the surface on which it actually sails by a plane surface , and hence the name plane sailing . 385. Table of Cases . Given . Req . Formulas . 1 r , C , l , d .し= r cos C , d = r sin C. 2 r , l , C , d . Cos ...
... sail on ' a plane , replace the surface on which it actually sails by a plane surface , and hence the name plane sailing . 385. Table of Cases . Given . Req . Formulas . 1 r , C , l , d .し= r cos C , d = r sin C. 2 r , l , C , d . Cos ...
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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...