The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art |
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Page 11
... given quantity consist of one denomina- tion only , write it as the numerator of a vulgar fraction ; then consider how many of this make one of the higher denomination , mentioned in the question , and write this latter number under the ...
... given quantity consist of one denomina- tion only , write it as the numerator of a vulgar fraction ; then consider how many of this make one of the higher denomination , mentioned in the question , and write this latter number under the ...
Page 13
... given decimal by the number of the next lower denomination , which makes an integer of the present , and point off as many pla- ces at the right hand of the product , for a remain- der , as there are figures in the given decimal ...
... given decimal by the number of the next lower denomination , which makes an integer of the present , and point off as many pla- ces at the right hand of the product , for a remain- der , as there are figures in the given decimal ...
Page 14
... given quantities to their corresponding decimals , and having stated the three known terms , so that the fourth , or required quantity , may be as much greater , or less than the third , as the second term is greater , or less than the ...
... given quantities to their corresponding decimals , and having stated the three known terms , so that the fourth , or required quantity , may be as much greater , or less than the third , as the second term is greater , or less than the ...
Page 15
... - terest ? Ans . 6.56+ SECTION II . INVOLUTION AND EVOLUTION . INVOLUTION is the method of raising any num- ber , considered as the root , to any required power . Any number , whether given , or assumed at pleasure DECIMAL FRACTIONS . 15.
... - terest ? Ans . 6.56+ SECTION II . INVOLUTION AND EVOLUTION . INVOLUTION is the method of raising any num- ber , considered as the root , to any required power . Any number , whether given , or assumed at pleasure DECIMAL FRACTIONS . 15.
Page 16
... given , or assumed at pleasure , may be called the root , or first power of this number ; and its other powers are the pro- ducts , that result from multiplying the number by itself , and the last product by the same num- ber again ...
... given , or assumed at pleasure , may be called the root , or first power of this number ; and its other powers are the pro- ducts , that result from multiplying the number by itself , and the last product by the same num- ber again ...
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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.