The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtE. Duyckinck, 1811 - 508 Seiten |
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Seite 3
... Hence & years #EGE II ET minate of ary figure or unre a iças . I comaron animex & enager and becoms 121 . or an honored , or a thousand mes greate . In placing one or two or the opter her : in decimal acumed the sale of any p number of ...
... Hence & years #EGE II ET minate of ary figure or unre a iças . I comaron animex & enager and becoms 121 . or an honored , or a thousand mes greate . In placing one or two or the opter her : in decimal acumed the sale of any p number of ...
Seite 23
... Hence it appears that there may be as many kinds of indices , or logarithms , as there can be taken kinds of geometrical series . But the Loga- rithms most convenient for common uses are those adapted to a geometrical series increasing ...
... Hence it appears that there may be as many kinds of indices , or logarithms , as there can be taken kinds of geometrical series . But the Loga- rithms most convenient for common uses are those adapted to a geometrical series increasing ...
Seite 40
... hence it is plain that the radius CD is the greatest possible sine , and thence is called the whole sine . Since the whole sine CD ( fig . 8. ) must be per- pendicular to the diameter ( by def . 20. ) therefore producing DC to E the two ...
... hence it is plain that the radius CD is the greatest possible sine , and thence is called the whole sine . Since the whole sine CD ( fig . 8. ) must be per- pendicular to the diameter ( by def . 20. ) therefore producing DC to E the two ...
Seite 42
... hence it is plain that the radius CD is the greatest possible sine , and thence is called the whole sine . Since the whole sine CD ( fig . 8. ) must be per- pendicular to the diameter ( by def . 20. ) therefore producing DC to E the two ...
... hence it is plain that the radius CD is the greatest possible sine , and thence is called the whole sine . Since the whole sine CD ( fig . 8. ) must be per- pendicular to the diameter ( by def . 20. ) therefore producing DC to E the two ...
Seite 49
... Hence if one angle of a triangle be known , the sum of the other two is also known : for since the three angles of every triangle con- tain two right ones , or 180 degrees , therefore 180 H -the given angle will be equal to the sum of ...
... Hence if one angle of a triangle be known , the sum of the other two is also known : for since the three angles of every triangle con- tain two right ones , or 180 degrees , therefore 180 H -the given angle will be equal to the sum of ...
Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
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
Beliebte Passagen
Seite 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.
Seite 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.
Seite 197 - RULE. From half the sum of the three sides subtract each side severally.
Seite 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.
Seite 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.