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 TablesHarper, 1832 - 348 σελίδες |
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Αποτελέσματα 1 - 5 από τα 33.
Σελίδα 10
... subtraction . " multiplication . 66 division . proportion . ::: 66 66 equality . 66 square root . 3 " 66 S cube root , & c . difference between two numbers , when it is not known which is the greater . Thus , 5 + 3 , denotes that 3 is ...
... subtraction . " multiplication . 66 division . proportion . ::: 66 66 equality . 66 square root . 3 " 66 S cube root , & c . difference between two numbers , when it is not known which is the greater . Thus , 5 + 3 , denotes that 3 is ...
Σελίδα 14
... SUBTRACTION OF DECIMALS . Write the figures of the subtrahend beneath those of the minuend according to the denomination of their places , as di- rected in the rule of addition ; then , beginning at the right - hand , subtract as in ...
... SUBTRACTION OF DECIMALS . Write the figures of the subtrahend beneath those of the minuend according to the denomination of their places , as di- rected in the rule of addition ; then , beginning at the right - hand , subtract as in ...
Σελίδα 24
... Subtract the square of this figure from the first period ; to the remainder annex the next period for a dividend ; and for part of a divisor , double the part of the root already obtained . Try how often this part of the divisor is ...
... Subtract the square of this figure from the first period ; to the remainder annex the next period for a dividend ; and for part of a divisor , double the part of the root already obtained . Try how often this part of the divisor is ...
Σελίδα 25
... Subtract its cube from the first period , and bring down the next three figures ; divide the number thus brought down by 300 times the square of the first figure of the root , and it will give the second figure ; add 300 times the ...
... Subtract its cube from the first period , and bring down the next three figures ; divide the number thus brought down by 300 times the square of the first figure of the root , and it will give the second figure ; add 300 times the ...
Σελίδα 26
... subtract the re- sult from the dividend , and then bring down the next period , and so proceed till all the periods are brought down . * To extract the cube root of a fraction , reduce it to a decimal , and then extract the root ; or ...
... subtract the re- sult from the dividend , and then bring down the next period , and so proceed till all the periods are brought down . * To extract the cube root of a fraction , reduce it to a decimal , and then extract the root ; or ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD acres altitude arch azimuth base bearing blank line centre chains and links circle circumferentor co-sine column compasses contained 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 method multiplied needle nonius number of degrees object observed offsets opposite parallelogram perches perpendicular plane prob PROBLEM proportion protractor quadrant quotient radius rhombus right angles right line scale of equal SCHOLIUM screw secant sect sector semicircle side square root station stationary distance subtract suppose survey taken tangent theo theodolite THEOREM third trapezium triangle ABC trigonometry two-pole chains vane vulgar fraction whence
Δημοφιλή αποσπάσματα
Σελίδα 173 - In like manner, when it is said, that " triangles on the same base, and between the same parallels, are equal...
Σελίδα 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.
Σελίδα 163 - RULE. From half the sum of the three sides subtract each side severally.
Σελίδα 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.
Σελίδα 97 - 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.
Σελίδα 41 - The radius of a circle is a right line drawn from the centre to the circumference.
Σελίδα 52 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Σελίδα 24 - The square of the sum of two numbers is equal to the square of the first number plus twice the product of the first and second number plus the square of the second number.
Σελίδα 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.