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 |
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Page iv
... scales of equal parts and protractors are employed , showing at once and distinctly , what is to be understood by the solution of a triangle , and the value of trigonometry in the measurement of inaccessible heights and distances . The ...
... scales of equal parts and protractors are employed , showing at once and distinctly , what is to be understood by the solution of a triangle , and the value of trigonometry in the measurement of inaccessible heights and distances . The ...
Page vi
... scale of sufficient magnitude to require not merely the spherical figure , but also the spheroidal figure of the earth to be taken into consideration . When the formulas in this part involve the theory of conic sections , they are given ...
... scale of sufficient magnitude to require not merely the spherical figure , but also the spheroidal figure of the earth to be taken into consideration . When the formulas in this part involve the theory of conic sections , they are given ...
Page ix
... Scales of equal parts , ib . ib . Sectoral scale , Diagonal scale , 3 4 Measurement of angles , Centesimal division , Conversion of the two modes of division , Engineer's method of expressing angles , ib . 6 ib . 7 Circular protractor ...
... Scales of equal parts , ib . ib . Sectoral scale , Diagonal scale , 3 4 Measurement of angles , Centesimal division , Conversion of the two modes of division , Engineer's method of expressing angles , ib . 6 ib . 7 Circular protractor ...
Page 2
... scales of equal parts and protractors . The most simple form of the scale of equal parts is shown in the annexed figure . 9 8 7 6 5 4 3 2 0 It is a straight rule divided into any number of equal parts ; in this example ten , and one of ...
... scales of equal parts and protractors . The most simple form of the scale of equal parts is shown in the annexed figure . 9 8 7 6 5 4 3 2 0 It is a straight rule divided into any number of equal parts ; in this example ten , and one of ...
Page 3
... scale , describe with the other an arc of a circle on the side towards which the line is to be drawn ; then from a draw the line in the proper direction , terminating it at the arc before ... SCALES . 3 Sectoral scale, Diagonal scale,
... scale , describe with the other an arc of a circle on the side towards which the line is to be drawn ; then from a draw the line in the proper direction , terminating it at the arc before ... SCALES . 3 Sectoral scale, Diagonal scale,
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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