A Treatise of Practical Surveying: Which is Demonstrated from Its First Principles ...Lewis Nichols, 1806 - 452 σελίδες |
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Σελίδα 421
... Co - sine 38317 98694 39623 38368 98690 39977 60323 01310 61632 O Sine . Cotang Tang . ( Co - sec . Secant . M. 60377 01396 61683 76 Degrees . 98687 M. Sine . ( Cosine : Tang . | Artificial Sines , Tang . and Sec . 13 Deg . 421.
... Co - sine 38317 98694 39623 38368 98690 39977 60323 01310 61632 O Sine . Cotang Tang . ( Co - sec . Secant . M. 60377 01396 61683 76 Degrees . 98687 M. Sine . ( Cosine : Tang . | Artificial Sines , Tang . and Sec . 13 Deg . 421.
Σελίδα 422
... Cosine : Tang . | Co - tang | Secant . | Co - sec . | M. 9.38368 9.98690 9.39677 10.60323 10,0131010.61632 60 39734 6c269 01313 01582 59 2.345678 38570 98678 39892 60108 38418 38469 98684 39785 60215 01316 61531 58 38519 98681 39838 ...
... Cosine : Tang . | Co - tang | Secant . | Co - sec . | M. 9.38368 9.98690 9.39677 10.60323 10,0131010.61632 60 39734 6c269 01313 01582 59 2.345678 38570 98678 39892 60108 38418 38469 98684 39785 60215 01316 61531 58 38519 98681 39838 ...
Σελίδα 429
... 96722 606051 39395 03278 42674 57357 96717 60641 39359 93283 42642 Co - sine . Sine . Co - tang Tang . Co - sec . Secant . [ M. 68 Degrees . 42705 M. Sine . Cosine Tang . Co - tang Secant Artificial Sines , Tang . and Sec . 21 Deg . 499.
... 96722 606051 39395 03278 42674 57357 96717 60641 39359 93283 42642 Co - sine . Sine . Co - tang Tang . Co - sec . Secant . [ M. 68 Degrees . 42705 M. Sine . Cosine Tang . Co - tang Secant Artificial Sines , Tang . and Sec . 21 Deg . 499.
Σελίδα 430
... Cosine Tang . Co - tang Secant . [ Co - sec . | M. 9-57358 9.96717 9.60641 10.39359 10,03283 10.42642 60 573891 O I 96711 60677 39323 03289 42611 59 -57420 96706 60714 39286 03294 42580 58 3 57451 96701 60750 39250 03299 42549 57 57482 ...
... Cosine Tang . Co - tang Secant . [ Co - sec . | M. 9-57358 9.96717 9.60641 10.39359 10,03283 10.42642 60 573891 O I 96711 60677 39323 03289 42611 59 -57420 96706 60714 39286 03294 42580 58 3 57451 96701 60750 39250 03299 42549 57 57482 ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
40 perches ABCD acres altitude Answer base bearing blank line centre chains and links chord circle circumferentor Co-sec Co-sine Co-tang Tang column contained cyphers decimal decimal fraction diameter difference distance line divided divisor draw drawn east edge EXAMPLE feet field-book figures fore four-pole chains half the sum height hypothenuse inches instrument Lat Dep Lat latitude line of numbers logarithm measure meridian distance multiplied needle number of degrees off-sets parallel parallelogram perpendicular piece of ground plane Plate prob PROBLEM proportion protractor quotient radius right angles right line scale of equal SCHOLIUM Secant second station sect semicircle side sights sine square root stationary distance sun's suppose survey taken tance tangent thence theo theodolite THEOREM trapezium triangle ABC trigonometry true amplitude two-pole chains vane variation whence
Δημοφιλή αποσπάσματα
Σελίδα 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.
Σελίδα 207 - ... that triangles on the same base and between the same parallels are equal...
Σελίδα 40 - 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 43 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Σελίδα 103 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Σελίδα 31 - Figures which consist of more than four sides are called polygons ; if the sides are all equal to each other, they are called regular polygons. They sometimes are named from the number of. their sides, as a five-sided figure is called a pentagon, one of six sides a hexagon, &"c.
Σελίδα 31 - ... they are called regular polygons. They sometimes are named from the number of their sides, as a five-sided figure is called a pentagon, one of. six sides a hexagon, &c. but if their sides are not equal to each other, then they are called irregular polygons, as an irregular pentagon, hexagon, &c.
Σελίδα 45 - The hypothenuse of a right-angled triangle may be found by having the other two sides ; thus, the square root of the sum of the squares of the base and perpendicular, will be the hypothenuse. Cor. 2. Having the hypothenuse and one side given to find the other; the square root of the difference of the squares of the hypothenuse and given side will be the required side.
Σελίδα 265 - As the length of the whole line, Is to 57.3 Degrees,* So is the said distance, To the difference of Variation required. EXAMPLE. Suppose it be required to run a line which some years ago bore N. 45°.
Σελίδα 32 - Things that are equal to one and the same thing are equal to one another." " If equals be added to equals, the wholes are equal." " If equals be taken from equals, the remainders are equal.