A Treatise on Trigonometry, Plane and Spherical: With Its Application to Navigation and Surveying, Nautical and Practical Astronomy and Geodesy : with Logarithmic, Trigonometrical, and Nautical Tables, for the Use of Schools and Colleges |
From inside the book
Results 1-5 of 46
Page xvii
... reading microscopes , " 66 Method of taking the readings , Page 301 ib . ib . 302 ib . 303 304 305 306 307 308 309 Reduction to the meridian of an observation with the mural , Meridian circle , ib . 311 PART V I. GEODESY . Definitions ...
... reading microscopes , " 66 Method of taking the readings , Page 301 ib . ib . 302 ib . 303 304 305 306 307 308 309 Reduction to the meridian of an observation with the mural , Meridian circle , ib . 311 PART V I. GEODESY . Definitions ...
Page 16
... will vary its position as the arc varies its magnitude . See Algebra , page 182 . When the arc is 90 Ā° , the per- pendicular 16 PLANE TRIGONOMETRY . Of formulas for sin" a and cos" Page Method of taking the readings, Page.
... will vary its position as the arc varies its magnitude . See Algebra , page 182 . When the arc is 90 Ā° , the per- pendicular 16 PLANE TRIGONOMETRY . Of formulas for sin" a and cos" Page Method of taking the readings, Page.
Page 154
... the striding level on the pivots , and take the readings at both ends ; suppose as in the diagram the * III . here and below stand for the imaginary middle wire . west end reads 40 and the east 20. It is 154 SPHERICAL TRIGONOMETRY .
... the striding level on the pivots , and take the readings at both ends ; suppose as in the diagram the * III . here and below stand for the imaginary middle wire . west end reads 40 and the east 20. It is 154 SPHERICAL TRIGONOMETRY .
Page 155
... readings of * 40 30 20 10 0 20 10 30 40 W the east and west end , and dividing by 2. So that if i denote the incli ... reading and e the east ) . we 2 i + i ( 1 ) Reversing the level , supposing i ' to be greater than i , the east end ...
... readings of * 40 30 20 10 0 20 10 30 40 W the east and west end , and dividing by 2. So that if i denote the incli ... reading and e the east ) . we 2 i + i ( 1 ) Reversing the level , supposing i ' to be greater than i , the east end ...
Page 156
... readings exceed the sum of the west readings the east end of the axis is too high , and vice versĆ¢ . First position of the level Second 66 66 66 EXAMPLE . e 50 e ' 24 3 40 w ' 66 e + e ' 74 w + w ' 106 74 ( e + e ' ) ~ ( w + w ' ) 32 ...
... readings exceed the sum of the west readings the east end of the axis is too high , and vice versĆ¢ . First position of the level Second 66 66 66 EXAMPLE . e 50 e ' 24 3 40 w ' 66 e + e ' 74 w + w ' 106 74 ( e + e ' ) ~ ( w + w ' ) 32 ...
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Common terms and phrases
A.M. Hour P.M. altitude azimuth centre circle colatitude collimation column comp cosĀ² cosc Cosecant Cotangent Diff Cotangent Secant course decimal declination departure determined diagram difference of latitude difference of longitude distance divided equal equation error EXAMPLE expressed feet formula Geom given number hence horizontal Hour A.M. Cosine Hour A.M. Hour hour angle hypothenuse instrument Logarithms of Numbers longitude meridian miles multiplied Napier's rules Natural Sines Nautical Almanac negative number of degrees observed obtained parallel parallel sailing perpendicular plane sailing plane triangle Prop proportion quadrant quotient radius right angled triangle right ascension sailed screw second member ship side opposite siderial sin a cos sin a sin sinĀ² sine and cosine solution sphere spherical triangle spherical trigonometry spirit level star subtracting supporting axis TABLE XXVII tangent telescope transit trigonometrical lines vertical zenith