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 53
Page 2
... divided into any number of equal parts ; in this example ten , and one of these again into ten , so that the smallest division is one hundredth of the whole length of the rule . The following is the manner of using it . Suppose that it ...
... divided into any number of equal parts ; in this example ten , and one of these again into ten , so that the smallest division is one hundredth of the whole length of the rule . The following is the manner of using it . Suppose that it ...
Page 3
... divided into a number ( usually 100 ) of equal parts . To set this scale to any size , say 40 parts to the inch , the arms 8 9 10 must be separated by turning them round the hinge , till a pair of dividers opened to the distance of an ...
... divided into a number ( usually 100 ) of equal parts . To set this scale to any size , say 40 parts to the inch , the arms 8 9 10 must be separated by turning them round the hinge , till a pair of dividers opened to the distance of an ...
Page 4
... divided into ten spaces , and the first division at top is joined to the second at bottom , the second at top to the third at bottom , and so on by diagonal lines . To measure any distance on this scale , as 456 , place the dividers on ...
... divided into ten spaces , and the first division at top is joined to the second at bottom , the second at top to the third at bottom , and so on by diagonal lines . To measure any distance on this scale , as 456 , place the dividers on ...
Page 7
... divided into degrees , sometimes comprising only a semicircle , sometimes upon a rectangular rule having not the circumference but the radii drawn , as they would be through the divisions of the circumference if it were actually ...
... divided into degrees , sometimes comprising only a semicircle , sometimes upon a rectangular rule having not the circumference but the radii drawn , as they would be through the divisions of the circumference if it were actually ...
Page 8
... divided into degrees by marks made in the metal , and these are numbered from 0 Ā° to 180 ( the number in a semi- circumference ) both ways , in order that the counting may commence with convenience at either end . The degrees are also ...
... divided into degrees by marks made in the metal , and these are numbered from 0 Ā° to 180 ( the number in a semi- circumference ) both ways , in order that the counting may commence with convenience at either end . The degrees are also ...
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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