The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art. With a New Set of Accurate Mathematical TablesA. S. Barnes, 1839 - 412 páginas |
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Página 10
... Method of dividing Land ... 208 213 8. Maritime Surveying . 220 9. Levelling .. 222 Ques- • 229 1. The Chain . . 109 ... Method . . . 177 Pennsylvania Method 187 Of computing the A- rea of a Survey , ge- ometrically consid- A 3 pass LIST ...
... Method of dividing Land ... 208 213 8. Maritime Surveying . 220 9. Levelling .. 222 Ques- • 229 1. The Chain . . 109 ... Method . . . 177 Pennsylvania Method 187 Of computing the A- rea of a Survey , ge- ometrically consid- A 3 pass LIST ...
Página 22
... method of raising any number , considered as the root , to any required power . Any number , whether given or assumed at pleasure , may be called the root or first power of this number ; and its other powers are the products that result ...
... method of raising any number , considered as the root , to any required power . Any number , whether given or assumed at pleasure , may be called the root or first power of this number ; and its other powers are the products that result ...
Página 26
... the cube of 20 ad- ded to the cube of 5 , together with the sum of 300x4 × 5 + 30 × 2 × 5 × 5 , 2. To extract the Cube Root by another Method . or , which is the same thing , 25 is equal to 20 + 5 , and therefore 25 cubed 26 EVOLUTION .
... the cube of 20 ad- ded to the cube of 5 , together with the sum of 300x4 × 5 + 30 × 2 × 5 × 5 , 2. To extract the Cube Root by another Method . or , which is the same thing , 25 is equal to 20 + 5 , and therefore 25 cubed 26 EVOLUTION .
Página 27
... Method . * 1. By trials find the nearest rational cube to the given number , whether it be greater or less , and call it the assumed cube . 2. Then say , by the Rule of Three , as the sum of the given number and double the assumed cube ...
... Method . * 1. By trials find the nearest rational cube to the given number , whether it be greater or less , and call it the assumed cube . 2. Then say , by the Rule of Three , as the sum of the given number and double the assumed cube ...
Página 29
... method is calculated thus ; let DFD ( Pl . 14 , fig . 1 ) be an hyperbola whose centre is C , vertex F , and interposed square CAFE = 1 . In CA take AB and Ab , on each side , or 0.1 · and , erecting the perpendiculars BD , bd , half ...
... method is calculated thus ; let DFD ( Pl . 14 , fig . 1 ) be an hyperbola whose centre is C , vertex F , and interposed square CAFE = 1 . In CA take AB and Ab , on each side , or 0.1 · and , erecting the perpendiculars BD , bd , half ...
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Términos y frases comunes
ABCD acres altitude arch base bearing blank line centre chains and links circle circumferentor column compasses contained Cosine Sine cube root decimal diagonal diameter difference of latitude divided divisions divisor draw east ecliptic edge EXAMPLE feet field-book figure four-pole chains geometrical series given angle given number half the sum height Hence horizon glass hypothenuse inches instrument length logarithm manner measure meridian distance multiplied needle nonius number of degrees object observed opposite parallelogram perches perpendicular plane prob PROBLEM proportion protractor quadrant quotient radius rhombus right angles right line scale of equal screw secant sect sector semicircle side Sine Cotang square root station stationary distance subtract suppose survey taken Tang tangent theo theodolite THEOREM trapezium triangle ABC trigonometry two-pole chains vane vulgar fraction whence
Pasajes populares
Página 49 - 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 41 - 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.
Página 41 - The radius of a circle is a right line drawn from the centre to the circumference.
Página 45 - A lemma is something which is premised, or demonstrated, in order to render what follows more easy. A corollary is a consequent truth derived immediately from some preceding truth or demonstration.
Página 35 - DIVISION BY LOGARITHMS. RULE. From the logarithm of the dividend subtract the logarithm of the divisor, and the number answering to the remainder will be the quotient required.
Página 21 - Then multiply the second and third terms together, and divide the product by the first term: the quotient will be the fourth term, or answer.