The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtE. Duyckinck, 1811 - 508 من الصفحات |
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الصفحة
... proportion . · $ २७२ ॥ •• Thus , equality . square root . cube root , & c . diff . between two numbers when it is not known which is the greater . 5 + 3 , denotes that 3 is to be added to 5 . 6 2 , denotes that 2 is to be taken from ...
... proportion . · $ २७२ ॥ •• Thus , equality . square root . cube root , & c . diff . between two numbers when it is not known which is the greater . 5 + 3 , denotes that 3 is to be added to 5 . 6 2 , denotes that 2 is to be taken from ...
الصفحة 3
... proportion : iran the decimal 10m de T are fractions , Í VICI Te irs . ter od greate than the second , and the secolo 11 His great er than the thre Hence & years #EGE II ET minate of ary figure or unre a iças . I comaron animex & enager ...
... proportion : iran the decimal 10m de T are fractions , Í VICI Te irs . ter od greate than the second , and the secolo 11 His great er than the thre Hence & years #EGE II ET minate of ary figure or unre a iças . I comaron animex & enager ...
الصفحة 14
... PROPORTION IN DECIMAL FRACTIONS . Having reduced all the fractional parts in the given quantities to their corresponding decimals , and having stated the three known terms , so that the fourth , or required quantity , may be as much ...
... PROPORTION IN DECIMAL FRACTIONS . Having reduced all the fractional parts in the given quantities to their corresponding decimals , and having stated the three known terms , so that the fourth , or required quantity , may be as much ...
الصفحة 32
... PROPORTION , Or the Rule of Three in Logarithms . RULE . Having stated the three given terms according to the rule in common Arithmetic , write them or- derly under one another , with the signs of propor- tion ; then add the Logarithms ...
... PROPORTION , Or the Rule of Three in Logarithms . RULE . Having stated the three given terms according to the rule in common Arithmetic , write them or- derly under one another , with the signs of propor- tion ; then add the Logarithms ...
الصفحة 33
... Proportion and Trigonometrical calculations , to change Subtrac tions into Additions . EXAMPLES . Ist . If a clock gain 14 seconds in 5 days 18 hours , how much will it gain in 17 days 15 hours ? : Log . = 0.759668 5.75 days 17.625 days ...
... Proportion and Trigonometrical calculations , to change Subtrac tions into Additions . EXAMPLES . Ist . If a clock gain 14 seconds in 5 days 18 hours , how much will it gain in 17 days 15 hours ? : Log . = 0.759668 5.75 days 17.625 days ...
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عبارات ومصطلحات مألوفة
acres altitude Answer arch azimuth base bearing blank line centre chains and links chord circle circumferentor Co-sec Co-tang column compasses contained decimal difference distance line divided divisions draw east Ecliptic edge feet field-book figures fore four-pole chains geom given number half the sum Horizon glass hypothenuse inches instrument Lat Dep Lat latitude length logarithm measure meridian distance multiplied natural co-sine natural sine needle Nonius number of degrees object observed off-sets opposite parallel parallelogram pegs perches perpendicular plane pole pole star Portmarnock PROB protractor Quadrant quotient radius right angles right line scale of equal SCHOLIUM screw Secant sect Sextant side sights square station stationary distance subtract Sun's survey taken Tang tangent theo theodolite trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence
مقاطع مشهورة
الصفحة 38 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
الصفحة 25 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
الصفحة 197 - RULE. From half the sum of the three sides subtract each side severally.
الصفحة 106 - 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.
الصفحة 27 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc. Thus BA is the versed sine of the arc AG.