Tables of Logarithms of Numbers and of Sines and Tangents for Every Ten Seconds of the Quadrant: With Other Useful TablesHarper & brothers, 1859 - 150 páginas |
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Página 21
... radius ( Geom . , Prop . IV . , B. VI . ) ; hence the sine of 30 ° is equal to half of the radius . ( 23. ) The versed sine of an arc is that part of the diameter intercepted between the sine and the arc . Thus GA is the versed sine of ...
... radius ( Geom . , Prop . IV . , B. VI . ) ; hence the sine of 30 ° is equal to half of the radius . ( 23. ) The versed sine of an arc is that part of the diameter intercepted between the sine and the arc . Thus GA is the versed sine of ...
Página 22
... radius minus the cosine CG . The versed sine of an obtuse angle , BCF , is equal to ra- dius plus the cosine CG ; that is , to BG . M K E Sine Tangent Cos . Vers . A G H ( 28. ) The relations of the sine , cosine , & c . , to each other ...
... radius minus the cosine CG . The versed sine of an obtuse angle , BCF , is equal to ra- dius plus the cosine CG ; that is , to BG . M K E Sine Tangent Cos . Vers . A G H ( 28. ) The relations of the sine , cosine , & c . , to each other ...
Página 23
... radius . 2 Hence sin . A = ± √R2 - cos . 2A . And cos . A = ± √R ' - sin . ' A. ( 29. ) A table of natural sines , tangents , & c . , is a table giv- ing the lengths of those lines for different angles in a circle whose radius is ...
... radius . 2 Hence sin . A = ± √R2 - cos . 2A . And cos . A = ± √R ' - sin . ' A. ( 29. ) A table of natural sines , tangents , & c . , is a table giv- ing the lengths of those lines for different angles in a circle whose radius is ...
Página 24
... radius of the circle is supposed to be unity , the sine of every arc below 90 ° is less than unity . The sines are ex- pressed in decimal parts of radius ; and , although the decimal point is not written in the table , it must always be ...
... radius of the circle is supposed to be unity , the sine of every arc below 90 ° is less than unity . The sines are ex- pressed in decimal parts of radius ; and , although the decimal point is not written in the table , it must always be ...
Página 27
... radius of the table of logarithmic sines is therefore , properly , 10,000,000,000 , whose logarithm is 10 . ( 35. ) The accompanying table contains the logarithmic sines and tangents for every ten seconds of the quadrant . The de- grees ...
... radius of the table of logarithmic sines is therefore , properly , 10,000,000,000 , whose logarithm is 10 . ( 35. ) The accompanying table contains the logarithmic sines and tangents for every ten seconds of the quadrant . The de- grees ...
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Términos y frases comunes
9 I I altitude angle of elevation arithm base chains circle Co-sine Co-tangent complement computed correction cosecant course and distance decimal diameter diff difference of latitude difference of longitude Dist divided equal equator fifth figure find the angles find the area find the Logarithm frustum given number given the angle height Hence horizontal plane hypothenuse inches latitude and departure length LO LO LO logarithmic sine measured meridian middle latitude miles minutes Multiply natural number nautical miles parallel parallel sailing perpendicular places plane sailing Prob Prop proportional quadrant radius Required the logarithmic right-angled spherical triangle right-angled triangle Sandy Hook secant ship sails side AC spherical triangle ABC SPHERICAL TRIGONOMETRY station subtract surface tabular number tang Tangent telescope theodolite Theorem vernier vertical Vulgar Fraction wyll yards zoids ΙΙ ΙΟ
Pasajes populares
Página 20 - The circumference of every circle is supposed to be divided into 360 equal parts, • called degrees, each degree into 60 minutes, and each minute into 60 seconds, etc.
Página 163 - In any spherical triangle, the sines of the sides are proportional to the sines of the opposite angles. In the case of right-angled spherical triangles, this proposition has already been demonstrated.
Página 69 - FIND the area of the sector having the same arc with the segment, by the last problem. Find also the area of the triangle, formed by the chord of the segment and the two radii of the sector.
Página 54 - 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 69 - TO THE NUMBER OF DEGREES IN THE ARC ; So IS THE AREA OF THE CIRCLE, TO THE AREA OF THE SECTOR.
Página 73 - To find the solidity of a pyramid. RULE. Multiply the area of the base by one third of the altitude.
Página vi - The characteristic of the logarithm of ANY NUMBER GREATER THAN UNITY, is one less than the number of integral figures in the given number.
Página 184 - If a heavy sphere, whose diameter is 4 inches, be let fall into a conical glass, full of water, whose diameter is 5, and altitude 6 inches ; it is required to determine how much water will run over ? AHS.