Elements of Surveying: With a Description of the Instruments and the Necessary Tables, Including a Table of Natural Sines |
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Page 7
... called the base of the system of logarithms ; and the indices , 0 , 1 , 2 , 3 , 4 , 5 , & c . , are the logarithms of the numbers which are produced by raising 10 to the powers de- noted by those indices . 2. Let a denote the base of ...
... called the base of the system of logarithms ; and the indices , 0 , 1 , 2 , 3 , 4 , 5 , & c . , are the logarithms of the numbers which are produced by raising 10 to the powers de- noted by those indices . 2. Let a denote the base of ...
Page 8
... fraction ; thus , log 126 = 2.100371 . The part of the logarithm which stands on the left of the decimal point , is called the characteristic of the logarithm . The characteristic is always one less than the places of 8 INTRODUCTION .
... fraction ; thus , log 126 = 2.100371 . The part of the logarithm which stands on the left of the decimal point , is called the characteristic of the logarithm . The characteristic is always one less than the places of 8 INTRODUCTION .
Page 17
... line are called points : a point , there- fore , has neither length , breadth , nor thickness , but position only . 3. A straight line is the shortest distance from one P 2 * DEFINITIONS . CHAPTER II Geometrical Definitions,
... line are called points : a point , there- fore , has neither length , breadth , nor thickness , but position only . 3. A straight line is the shortest distance from one P 2 * DEFINITIONS . CHAPTER II Geometrical Definitions,
Page 18
... called an angle , which is greater or less as the lines are more or less inclined or opened . The point of intersection A is the vertex of the angle , and the lines AB , A4 AC , are its sides . C -B The angle is sometimes designed ...
... called an angle , which is greater or less as the lines are more or less inclined or opened . The point of intersection A is the vertex of the angle , and the lines AB , A4 AC , are its sides . C -B The angle is sometimes designed ...
Page 19
... called a right angle ; and the line AB is said to be C perpendicular to CD . 11. Every angle BAC , less than a right ... called a rectilineal figure , or polygon , and the lines themselves , taken together , form the contour , or ...
... called a right angle ; and the line AB is said to be C perpendicular to CD . 11. Every angle BAC , less than a right ... called a rectilineal figure , or polygon , and the lines themselves , taken together , form the contour , or ...
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Common terms and phrases
adjusted angle of elevation axis azimuth back-sights base line called centre clamp-screw coincide column comp compass Cosine D Cosine Sine Cotang course curve degrees determined difference of level direction divided double meridian distance draw east elongation error example feet field notes figure given angle given line given point ground Gunter's chain hence horizontal angle horizontal distance horizontal plane hypothenuse inches instrument intersection LatDegDegDegDeg Distance latitude and departure length levelling screws line AC line of collimation logarithm M.
M. Sine marked measure method multiplied natural sines needle object paper parallel passing perpendicular plane of reference protractor radius right angles right-angled triangle rods scale of equal secant side sights similar triangles Sine Sine spider's lines square chains staff subtract surface survey Tang tangent theodolite true meridian vernier plate vertical limb yards