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 páginas |
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Página 6
... Logarithms , with their application , and the method of computing them . The fourth section contains geometrical definitions , theorems , and problems , with the description and use of the sector , Gunter's scale , and other ...
... Logarithms , with their application , and the method of computing them . The fourth section contains geometrical definitions , theorems , and problems , with the description and use of the sector , Gunter's scale , and other ...
Página 9
... Logarithms . 4. Elements of Geome- Mathematical Instru- try ments Sect . Page ered and demon- 11 strated · 4. Of Offsets 22 • 5. Method of Surveying 28 by Intersections 6. Changing the Scale of 40 Maps . 7. Method of dividing 64 Land ...
... Logarithms . 4. Elements of Geome- Mathematical Instru- try ments Sect . Page ered and demon- 11 strated · 4. Of Offsets 22 • 5. Method of Surveying 28 by Intersections 6. Changing the Scale of 40 Maps . 7. Method of dividing 64 Land ...
Página 11
... Logarithms , Geometry , and Plane Trigo- nometry . SECTION I. DECIMAL FRACTIONS . If we suppose unity or any one thing to be divided into any assigned number of equal parts , this number is called the de- nominator ; and if we choose to ...
... Logarithms , Geometry , and Plane Trigo- nometry . SECTION I. DECIMAL FRACTIONS . If we suppose unity or any one thing to be divided into any assigned number of equal parts , this number is called the de- nominator ; and if we choose to ...
Página 28
... LOGARITHMS . LOGARITHMS are a series of numbers , so contrived , that by them the work of multiplication may be performed by addition ; and the operation of division may be done by subtraction . Or , -Logarithms are the indices , or ...
... LOGARITHMS . LOGARITHMS are a series of numbers , so contrived , that by them the work of multiplication may be performed by addition ; and the operation of division may be done by subtraction . Or , -Logarithms are the indices , or ...
Página 29
... logarithms ; and the most troublesome part of this work is to make the logarithms of prime numbers , or those which cannot be divided by any other numbers than themselves and unity . RULE For computing the Logarithms of Numbers . * Let ...
... logarithms ; and the most troublesome part of this work is to make the logarithms of prime numbers , or those which cannot be divided by any other numbers than themselves and unity . RULE For computing the Logarithms of Numbers . * Let ...
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Términos y frases comunes
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
Pasajes populares
Página 173 - In like manner, when it is said, that " triangles on the same base, and between the same parallels, are equal...
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 163 - RULE. From half the sum of the three sides subtract each side severally.
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 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.
Página 41 - The radius of a circle is a right line drawn from the centre to the circumference.
Página 52 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Página 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.
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.