A Treatise of Practical Surveying, ...1808 - 440 páginas |
Dentro del libro
Resultados 1-5 de 47
Página 73
... co - tan- gent only . From twice the radius , Take the co - tangent of 29 ° . 50 ' 20.00000 10.24148 9.75852 The rem . is the tang . of 29 ° . 50 ′ req . 4. To find the secant by the help of a co - sine ; which may be found of great use ...
... co - tan- gent only . From twice the radius , Take the co - tangent of 29 ° . 50 ' 20.00000 10.24148 9.75852 The rem . is the tang . of 29 ° . 50 ′ req . 4. To find the secant by the help of a co - sine ; which may be found of great use ...
Página 252
... tang , of the alt . 37.30 9.88498 :: tangent of the 6th arc 23.58 0.64790 Co - sine of the sun's true azim . 70.04- 9.53288 True azimuth S. 70 ° .04 E. Magnetical azimuth S. 51.00 E. Variation 19.04 W. The true azimuth being to the left ...
... tang , of the alt . 37.30 9.88498 :: tangent of the 6th arc 23.58 0.64790 Co - sine of the sun's true azim . 70.04- 9.53288 True azimuth S. 70 ° .04 E. Magnetical azimuth S. 51.00 E. Variation 19.04 W. The true azimuth being to the left ...
Página 108
Robert Gibson. M. 0 I Sine Co - fine . Tangent . Co tang . Secant . Co - fecant 10.00000 10.00000 0.000000 Infinite . 10.00000 Infinite . 6.46373 10.00000 6.46373 13.53627 , 10.00000 13.53627 60 59 23456'n∞ a Coooo IC II 36681 41797 ...
Robert Gibson. M. 0 I Sine Co - fine . Tangent . Co tang . Secant . Co - fecant 10.00000 10.00000 0.000000 Infinite . 10.00000 Infinite . 6.46373 10.00000 6.46373 13.53627 , 10.00000 13.53627 60 59 23456'n∞ a Coooo IC II 36681 41797 ...
Página 109
... Co - tang . ] Secant . Co - fecant 8.24185 9.99993 8.24192 11.75808 10.00007 11.75814 24903 99993 24910 75090 00007 25609 99993 25616 74384 00007 26304 99993 26311 73688 60 75097 59 ... Co Artificial Sines , Tang . and Sec . 1 Degree . 109.
... Co - tang . ] Secant . Co - fecant 8.24185 9.99993 8.24192 11.75808 10.00007 11.75814 24903 99993 24910 75090 00007 25609 99993 25616 74384 00007 26304 99993 26311 73688 60 75097 59 ... Co Artificial Sines , Tang . and Sec . 1 Degree . 109.
Página 110
Robert Gibson. M. O Sine . Co - fine Tangent . Co - tang . Tangent . Co - fecant 8.54282 9.99973 8.54309 11.45692 10.00026 11.45718 60 I 54642 ΙΟ II 12 13 14 15 16 234567 OKTO 54999 99973 99973 550271 54669 45331 44973 00027 00027 45000 ...
Robert Gibson. M. O Sine . Co - fine Tangent . Co - tang . Tangent . Co - fecant 8.54282 9.99973 8.54309 11.45692 10.00026 11.45718 60 I 54642 ΙΟ II 12 13 14 15 16 234567 OKTO 54999 99973 99973 550271 54669 45331 44973 00027 00027 45000 ...
Otras ediciones - Ver todas
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.