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 20
... degrees ; each degree into 60 minutes , and each minute into 60 seconds . Degrees , min- utes , and seconds are designated by the characters , ' , " . Thus 23 ° 14 ′ 35 ′′ is read 23 degrees , 14 minutes , and 35 sec- onds . Since an ...
... degrees ; each degree into 60 minutes , and each minute into 60 seconds . Degrees , min- utes , and seconds are designated by the characters , ' , " . Thus 23 ° 14 ′ 35 ′′ is read 23 degrees , 14 minutes , and 35 sec- onds . Since an ...
Página 26
... degrees , minutes , and seconds belonging to a given sine or tangent . If the given sine or tangent is found exactly in the table , the corresponding degrees will be found at the top of the page , and the minutes on the left hand . But ...
... degrees , minutes , and seconds belonging to a given sine or tangent . If the given sine or tangent is found exactly in the table , the corresponding degrees will be found at the top of the page , and the minutes on the left hand . But ...
Página 31
... degrees and seconds will be found at the top of the page , and the minutes on the left . But when the given num- ber is not found exactly in the table , look for the sine or tan- gent which is next less than the proposed one , and take ...
... degrees and seconds will be found at the top of the page , and the minutes on the left . But when the given num- ber is not found exactly in the table , look for the sine or tan- gent which is next less than the proposed one , and take ...
Página 67
... degree ? Ans . , 69.045 miles . RULE II . ( 96. ) Multiply the diameter of the circle by the number of degrees in the arc , and this product by 0.0087266 . Since the circumference of a circle whose diameter is unity is 3.14159 , if we ...
... degree ? Ans . , 69.045 miles . RULE II . ( 96. ) Multiply the diameter of the circle by the number of degrees in the arc , and this product by 0.0087266 . Since the circumference of a circle whose diameter is unity is 3.14159 , if we ...
Página 95
... degrees , or 30 ' , and we wish to measure sin- gle minutes by the vernier , we take an arc equal to 31 divi- sions ... degrees and half degrees taken from the graduated circle . Sometimes a vernier is attached to the common surveyor's ...
... degrees , or 30 ' , and we wish to measure sin- gle minutes by the vernier , we take an arc equal to 31 divi- sions ... degrees and half degrees taken from the graduated circle . Sometimes a vernier is attached to the common surveyor's ...
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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.