A Treatise of Practical Surveying, ...1808 - 440 σελίδες |
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Σελίδα
... . To these methods is annexed a short table of difference of latitude and half departure , to every degree and quarter of a degree of the quadrant , the stationary distance being one one chain ; which will be found as ready , PREFACE .
... . To these methods is annexed a short table of difference of latitude and half departure , to every degree and quarter of a degree of the quadrant , the stationary distance being one one chain ; which will be found as ready , PREFACE .
Σελίδα 6
... difference between the number of decimals in the dividend and divisor , must be cut off in the quotient . EXAMPLES . Divide .144 by .12 .12 ) .144 ( 1.2 24 Divide 63.72413456922 by 2718 2718 ) 63.72413456922 ( .02344522979 9364 Divide 6 ...
... difference between the number of decimals in the dividend and divisor , must be cut off in the quotient . EXAMPLES . Divide .144 by .12 .12 ) .144 ( 1.2 24 Divide 63.72413456922 by 2718 2718 ) 63.72413456922 ( .02344522979 9364 Divide 6 ...
Σελίδα 8
... difference , which is 6 figures , to be cut off in the quotient . Divide 87446071 by .004387 . Answer 199.33 . Divide .624672 by 482 . Answer .001296 . Divide 66.993548 by 27.4 . Answer 2.44502 . PROB . I. To reduce a Vulgar Fraction to ...
... difference , which is 6 figures , to be cut off in the quotient . Divide 87446071 by .004387 . Answer 199.33 . Divide .624672 by 482 . Answer .001296 . Divide 66.993548 by 27.4 . Answer 2.44502 . PROB . I. To reduce a Vulgar Fraction to ...
Σελίδα 37
... difference of the squares of the hypothenuse and given leg , will be the required leg . THE O. XV . In all circles the chord of 60 degrees is always equal in length to the radius . Thus in the circle AEBD , if the arc AEB be an arc of ...
... difference of the squares of the hypothenuse and given leg , will be the required leg . THE O. XV . In all circles the chord of 60 degrees is always equal in length to the radius . Thus in the circle AEBD , if the arc AEB be an arc of ...
Σελίδα 60
... difference . 3. Multiply that difference by the remaining fi- gures of the given number ; and from the product cut off as many figures as remain in the given number , or as the given number is more than four ( counting from the right to ...
... difference . 3. Multiply that difference by the remaining fi- gures of the given number ; and from the product cut off as many figures as remain in the given number , or as the given number is more than four ( counting from the right to ...
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A Treatise of Practical Surveying: Which Is Demonstrated From Its First ... Robert Gibson Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
A Treatise of Practical Surveying: Which Is Demonstrated from Its First ... Department of Radiology Royal Melbourne Hospital Robert Gibson,Robert Gibson Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
A Treatise of Practical Surveying: Which Is Demonstrated from Its First ... Department of Radiology Royal Melbourne Hospital Robert Gibson,Robert Gibson Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2013 |
Συχνά εμφανιζόμενοι όροι και φράσεις
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
Δημοφιλή αποσπάσματα
Σελίδα 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.
Σελίδα 199 - ... that triangles on the same base and between the same parallels are equal...
Σελίδα 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.
Σελίδα 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.
Σελίδα 95 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Σελίδα 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.
Σελίδα 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.
Σελίδα 36 - XIII. •All parallelograms on the same or equal bases and between the same parallels...
Σελίδα 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.
Σελίδα 35 - Triangles upon equal bases, and between the same parallels, are equal to one another.