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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Σελίδα 81
... latitude of that division . Or the extent from any division to another on the line of meridional parts , applied to the line of equal parts , will give the meridional difference of latitude be- tween the two places denoted by the ...
... latitude of that division . Or the extent from any division to another on the line of meridional parts , applied to the line of equal parts , will give the meridional difference of latitude be- tween the two places denoted by the ...
Σελίδα 177
... difference of latitude , or the northing or southing of any stationary line , is the distance that one end of the line is north or south from the other end ; or , it is the distance which is intercepted on the meridian , between the ...
... difference of latitude , or the northing or southing of any stationary line , is the distance that one end of the line is north or south from the other end ; or , it is the distance which is intercepted on the meridian , between the ...
Σελίδα 178
... difference of latitude and departure for any stationary line , whose course and dis- tance are given , may be ... difference of latitude and departure . To find the difference of latitude and departure by the 178 COMPUTATION OF AREAS .
... difference of latitude and departure for any stationary line , whose course and dis- tance are given , may be ... difference of latitude and departure . To find the difference of latitude and departure by the 178 COMPUTATION OF AREAS .
Σελίδα 179
... difference of latitude and departure by the Traverse Table . This table is so contrived , that by finding therein the given course , and a distance not exceeding 120 miles , chains , perches , or feet , the difference of latitude and ...
... difference of latitude and departure by the Traverse Table . This table is so contrived , that by finding therein the given course , and a distance not exceeding 120 miles , chains , perches , or feet , the difference of latitude and ...
Σελίδα 180
... lat . and dep . for the chains or perches in the first place ; and then for the ... latitude , and 45.59 the departure , which signify that the end of that ... difference , that the lat . before found will now be the dep . , and the dep ...
... lat . and dep . for the chains or perches in the first place ; and then for the ... latitude , and 45.59 the departure , which signify that the end of that ... difference , that the lat . before found will now be the dep . , and the dep ...
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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.