Tables of Logarithms of Numbers and of Sines and Tangents for Every Ten Seconds of the Quadrant: With Other Useful Tables |
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Page 6
... Latitude Sailing . Mercator's Sailing .. Nautical Charts BOOK V. NAVIGATION . 1 Page 94 95 97 103 104 106 109 · 114 117 119 123 127 130 132 133 135 138 141 144 146 149 153 BOOK VI . SPHERICAL TRIGONOMETRY . Right - angled Spherical ...
... Latitude Sailing . Mercator's Sailing .. Nautical Charts BOOK V. NAVIGATION . 1 Page 94 95 97 103 104 106 109 · 114 117 119 123 127 130 132 133 135 138 141 144 146 149 153 BOOK VI . SPHERICAL TRIGONOMETRY . Right - angled Spherical ...
Page 103
... decimal part of an acre be multiplied by 4 , it will give the roods , and the result- ing decimal , multiplied by 40 , will give the perches . ( 152. ) The difference of latitude , or the SURVEYING . 103 The Determination of Areas.
... decimal part of an acre be multiplied by 4 , it will give the roods , and the result- ing decimal , multiplied by 40 , will give the perches . ( 152. ) The difference of latitude , or the SURVEYING . 103 The Determination of Areas.
Page 104
... latitude , or northing of AB . The departure , or the easting or westing of a B .ine , is the distance that one end is further east or west than the other end . Thus BC is the departure or westing of the line AB . It is evident that the ...
... latitude , or northing of AB . The departure , or the easting or westing of a B .ine , is the distance that one end is further east or west than the other end . Thus BC is the departure or westing of the line AB . It is evident that the ...
Page 106
... latitude and the departure to four decimal places , for dis- tances from 1 to 10 , and for bearings from 0 ° to 90 ° , at inter- vals of 15 ' . If the bearing is less than 45 ° , the angle will be found on the left margin of one of the ...
... latitude and the departure to four decimal places , for dis- tances from 1 to 10 , and for bearings from 0 ° to 90 ° , at inter- vals of 15 ' . If the bearing is less than 45 ° , the angle will be found on the left margin of one of the ...
Page 107
... latitude be changed ac- cordingly . Ex . 1. To find the latitude and departure for the course 45 ° and the distance 93 . Under distance 9 on page 141 , and opposite 45 ° , will be found latitude 6.3640 and departure 6.3640 . Hence , for ...
... latitude be changed ac- cordingly . Ex . 1. To find the latitude and departure for the course 45 ° and the distance 93 . Under distance 9 on page 141 , and opposite 45 ° , will be found latitude 6.3640 and departure 6.3640 . Hence , for ...
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Common terms and phrases
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
Popular passages
Page 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.
Page 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.
Page 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.
Page 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.
Page 69 - TO THE NUMBER OF DEGREES IN THE ARC ; So IS THE AREA OF THE CIRCLE, TO THE AREA OF THE SECTOR.
Page 73 - To find the solidity of a pyramid. RULE. Multiply the area of the base by one third of the altitude.
Page 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.
Page 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.