The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art |
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Page
... greater . 5 + 3 , denotes that 3 is to be added to 5 . 6 2 , denotes that 2 is to be taken from 6 . - 7 x 3 , or . 3 , denotes that 7 is to be multiplied by 3 . 84 , denotes that 8 is to be divided by 4 . 2 : 34 : 6 , shows that 2 is to ...
... greater . 5 + 3 , denotes that 3 is to be added to 5 . 6 2 , denotes that 2 is to be taken from 6 . - 7 x 3 , or . 3 , denotes that 7 is to be multiplied by 3 . 84 , denotes that 8 is to be divided by 4 . 2 : 34 : 6 , shows that 2 is to ...
Page 3
... becomSE BY DRE my times greater , by refaig de tres siphers to it and art ary numer a chess before an ineper , I the item tracton Las no effect in changing ther wh 73 SCALE OF NOTATION . Integers . 86 Decimals . DECIMAL FRANTICS.
... becomSE BY DRE my times greater , by refaig de tres siphers to it and art ary numer a chess before an ineper , I the item tracton Las no effect in changing ther wh 73 SCALE OF NOTATION . Integers . 86 Decimals . DECIMAL FRANTICS.
Page 14
... greater , or less than the third , as the second term is greater , or less than the first , then multiply the second and third terms together , and divide the product by the first term , and the quotient will be the answer ; -in the ...
... greater , or less than the third , as the second term is greater , or less than the first , then multiply the second and third terms together , and divide the product by the first term , and the quotient will be the answer ; -in the ...
Page 16
... greater by one , than the number of multi- plications employed in producing the power . It is usually written above the root , as in the follow- ing EXAMPLE , where the method of involution is plainly exhibited . Required the fifth ...
... greater by one , than the number of multi- plications employed in producing the power . It is usually written above the root , as in the follow- ing EXAMPLE , where the method of involution is plainly exhibited . Required the fifth ...
Page 20
... , shall come nearest to the given number , whether greater or less ; and let that number be called the assumed root , and when thus involved , the assumed power , Let the given power , or number be repre- G. 20 EVOLUTION .
... , shall come nearest to the given number , whether greater or less ; and let that number be called the assumed root , and when thus involved , the assumed power , Let the given power , or number be repre- G. 20 EVOLUTION .
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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.