The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtE. Duyckinck, 1811 - 508 من الصفحات |
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الصفحة 14
... 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 same denomination with the third ...
... 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 same denomination with the third ...
الصفحة 16
... third [ power . 4096 8 = 32768 = = ==== 8 ' biquadrate or [ fourth power . 85 Answer . EXAMPLES FOR EXERCISE . What is the second power of 3.05 ? Ans . 9.3025 What is the third power of 85.3 ? Answer , 620650.477 What is the fourth ...
... third [ power . 4096 8 = 32768 = = ==== 8 ' biquadrate or [ fourth power . 85 Answer . EXAMPLES FOR EXERCISE . What is the second power of 3.05 ? Ans . 9.3025 What is the third power of 85.3 ? Answer , 620650.477 What is the fourth ...
الصفحة 25
... third by 5 , the fourth by 7 , & c . and let these quotients be written orderly under one another ; add them together and their sum will be a logarithm . To this logarithm add the logarithm of the next less number , and the sum will be ...
... third by 5 , the fourth by 7 , & c . and let these quotients be written orderly under one another ; add them together and their sum will be a logarithm . To this logarithm add the logarithm of the next less number , and the sum will be ...
الصفحة 32
... under one another , with the signs of propor- tion ; then add the Logarithms of the second and third terms together , and from their sum subtract the Logarithm of the first term , and the remainder 32 OF LOGARITHMS .
... under one another , with the signs of propor- tion ; then add the Logarithms of the second and third terms together , and from their sum subtract the Logarithm of the first term , and the remainder 32 OF LOGARITHMS .
الصفحة 33
... third terms ; the sum , re- jecting 10 from the Index , will be the Logarithm of the fourth term , or term required . N. B. The Arithmetical Complement of a Loga- rithm is what it wants of 10,000000 , or 20,000000 , and the easiest way ...
... third terms ; the sum , re- jecting 10 from the Index , will be the Logarithm of the fourth term , or term required . N. B. The Arithmetical Complement of a Loga- rithm is what it wants of 10,000000 , or 20,000000 , and the easiest way ...
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عبارات ومصطلحات مألوفة
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
مقاطع مشهورة
الصفحة 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.
الصفحة 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.
الصفحة 197 - RULE. From half the sum of the three sides subtract each side severally.
الصفحة 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.
الصفحة 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.