The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art |
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Page 26
... ) 60 8.241855 9.999934 8.241922 11.75807810.000066 11.758145 ) Co - sine Sine Co tăng Tang . Co - sec . Secant 89 Degrees . 59 M 9 8 7 5 3 2 I ΟΙ 1 Degree . M Sine . Co - sine . 26 LOGARITHMIC SINES , TANGENTS , AND SECANTS .
... ) 60 8.241855 9.999934 8.241922 11.75807810.000066 11.758145 ) Co - sine Sine Co tăng Tang . Co - sec . Secant 89 Degrees . 59 M 9 8 7 5 3 2 I ΟΙ 1 Degree . M Sine . Co - sine . 26 LOGARITHMIC SINES , TANGENTS , AND SECANTS .
Page 27
... 11.460814 I 60 8.542819 9.999735 8.543084 11.456916 10.000265 11.457181 O Co - sine . Sine . Co - tang . Tang . Co - sec , Secant . M 88 Degrees 9876 4 5436 2 2 Degrees . M Sine . Co - sine . LOGARITHMIC SINES , TANGENTS , AND SECANTS . 27.
... 11.460814 I 60 8.542819 9.999735 8.543084 11.456916 10.000265 11.457181 O Co - sine . Sine . Co - tang . Tang . Co - sec , Secant . M 88 Degrees 9876 4 5436 2 2 Degrees . M Sine . Co - sine . LOGARITHMIC SINES , TANGENTS , AND SECANTS . 27.
Page 28
... 10.000589 11.283617 60 8.718800 9 999404 8.719396 11.280604 , 10.000596 11.281200 M Co - sine . Sine . Co - tang Tang Co - sec Secant 87 Degrees . 47 5 4 2 I 3 Degrees . M Sine . Co - sine . 28 LOGARITHMS , SINES , TANGENTS , AND SECANTS .
... 10.000589 11.283617 60 8.718800 9 999404 8.719396 11.280604 , 10.000596 11.281200 M Co - sine . Sine . Co - tang Tang Co - sec Secant 87 Degrees . 47 5 4 2 I 3 Degrees . M Sine . Co - sine . 28 LOGARITHMS , SINES , TANGENTS , AND SECANTS .
Page 29
... 11.158226 60 8.343585 9.998941 8.844644 11.155356 ; 10.001059 11.156415 24 Co - sine ! bine . Co - tan . Tang . Co - sec . Secant . M 9876 M2 5 4 J O 86 Degrees . M Sine . 5 9 24 25 27 4 Degrees LOGARITHMIC SINES , TANGENTS , AND SECANTS .
... 11.158226 60 8.343585 9.998941 8.844644 11.155356 ; 10.001059 11.156415 24 Co - sine ! bine . Co - tan . Tang . Co - sec . Secant . M 9876 M2 5 4 J O 86 Degrees . M Sine . 5 9 24 25 27 4 Degrees LOGARITHMIC SINES , TANGENTS , AND SECANTS .
Page 30
... Co - sine . | Tang Co - tang Secant . Co - sec . M 8.8435859.998941 8.844644 11.155356 10.001059 1C156415 60 18.8453879.998932 8.846455 11.153545 10.001068 11.154613 59 28.847183 9.998923 8.848260 11.151740 10.001077 11.152817 58 ...
... Co - sine . | Tang Co - tang Secant . Co - sec . M 8.8435859.998941 8.844644 11.155356 10.001059 1C156415 60 18.8453879.998932 8.846455 11.153545 10.001068 11.154613 59 28.847183 9.998923 8.848260 11.151740 10.001077 11.152817 58 ...
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Common terms and phrases
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
Popular passages
Page 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.
Page 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.
Page 197 - RULE. From half the sum of the three sides subtract each side severally.
Page 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.
Page 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.