A Treatise of Practical Surveying, ...1808 - 440 páginas |
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Página 8
... reduce a Vulgar Fraction to a Decimal one of the same Value . Having annexed a sufficient number of cyphers as decimals , to the numerator of the vulgar fraction , divide by the denominator ; and the quotient thence arising , will be ...
... reduce a Vulgar Fraction to a Decimal one of the same Value . Having annexed a sufficient number of cyphers as decimals , to the numerator of the vulgar fraction , divide by the denominator ; and the quotient thence arising , will be ...
Página 9
... Reduce to a decimal fraction . 5 ) 2.0.4 Answer . Reduce to a decimal fraction . 25 ) 12.00 ( 48 Answer . 200 Reduce to a decimal fraction Answer .1146789 . PROB . II . To find the Value of a decimal Fraction , in the known Parts of the ...
... Reduce to a decimal fraction . 5 ) 2.0.4 Answer . Reduce to a decimal fraction . 25 ) 12.00 ( 48 Answer . 200 Reduce to a decimal fraction Answer .1146789 . PROB . II . To find the Value of a decimal Fraction , in the known Parts of the ...
Página 135
... reduce one to the other , in the following pro- * blems . PROB . I. To reduce two - pole chains and links to four - pole ones . If the number of chains be even , the half of them will be the four - pole ones , to which annex the links ...
... reduce one to the other , in the following pro- * blems . PROB . I. To reduce two - pole chains and links to four - pole ones . If the number of chains be even , the half of them will be the four - pole ones , to which annex the links ...
Página 136
... reduce four - pole chains and links , to two - polé ones . Double the chains , to which annex the links , if they be less than 50 ; but if they exceed 50 , dou- ble the chains , add 1 to them , and take 50 from the links , and the ...
... reduce four - pole chains and links , to two - polé ones . Double the chains , to which annex the links , if they be less than 50 ; but if they exceed 50 , dou- ble the chains , add 1 to them , and take 50 from the links , and the ...
Página 137
... reduce two - pole chains and links , to perches and decimals of a perch . They may be reduced to four - pole ones ( by prob . 1. ) and thence to perches and decimals ( by the last . ) or , Τ If If the links be multiplied by 4 , carrying ...
... reduce two - pole chains and links , to perches and decimals of a perch . They may be reduced to four - pole ones ( by prob . 1. ) and thence to perches and decimals ( by the last . ) or , Τ If If the links be multiplied by 4 , carrying ...
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A Treatise of Practical Surveying: Which Is Demonstrated From Its First ... Robert Gibson Sin vista previa disponible - 2018 |
Términos y frases comunes
40 perches ABCD acres altitude Answer base bearing blank line centre chains and links chord circle circumferentor Co-fecant Secant Co-fine Co-tang column contained cyphers decimal decimal fraction diameter difference Dift Diſt distance line divided draw drawn east edge EXAMPLE feet field-book figures fore four-pole chains half the sum height hypothenuse inches instrument latitude logarithm measure meridian distance method multiplied needle number of degrees object off-sets parallel parallelogram perpendicular piece of ground plane Plate pole Portmarnock PROB protractor quotient radius right angles right line scale of equal second station sect semicircle side sights sine square root stationary distance stationary line sun's survey taken tangent thence theo theodolite thro trapezium triangle ABC trigonometry true amplitude two-pole chains vane variation Vulgar Fraction whence ΙΟ
Pasajes populares
Página 32 - 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.
Página 199 - ... that triangles on the same base and between the same parallels are equal...
Página 94 - 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 23 - Four quantities are said to be in proportion when the product of the extremes is equal to that of the means : thus if A multiplied by D, be equal to B multiplied by C, then A is said to be to B as C is to D.
Página 95 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Página 37 - ABDE+ACGF the sum of the squares —BKLH-\-KCML, the sum of the two parallelograms or square BCMH; therefore the sum of the squares on AB and AC is equal to the square on BC.
Página 24 - Things that are equal to one and the same thing, are equal to each other. 2. Every whole is greater than its part. % 3. Every whole is equal to all its parts taken together. 4 If to equal things, equal things be added, the whole will be equal. 5. If from equal things, equal things be deducted the remainders will be equal.
Página 36 - XIII. •All parallelograms on the same or equal bases and between the same parallels...
Página 182 - VI. To find the content of a triangular piece of ground, Multiply the base by half the perpendicular, or the perpendicular by half the base ; or take half the product of the base into the perpendicular. The reason hereof is plain, from cor.
Página 35 - Triangles upon equal bases, and between the same parallels, are equal to one another.