The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtE. Duyckinck, 1811 - 508 من الصفحات |
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الصفحة
... Tangents and Secants 20 2. Mensuration of Natural Sines 71 heights 179 Points of the Compass 6. Changing the scale of Maps -Of Distances 194 3. Mensuration of Areas 200 General Method 232 Pennsylvania Method 246 4. Of Off - sets 5 ...
... Tangents and Secants 20 2. Mensuration of Natural Sines 71 heights 179 Points of the Compass 6. Changing the scale of Maps -Of Distances 194 3. Mensuration of Areas 200 General Method 232 Pennsylvania Method 246 4. Of Off - sets 5 ...
الصفحة
... Tangents and Secants 20 Natural Sines heights 179 Of Distances 194 3. Mensuration of Areas 200 General Method 232 Pennsylvania Method 246 4. Of off - sets 5. Method of surveying by Intersections 257 6. Changing the scale of Maps Mean ...
... Tangents and Secants 20 Natural Sines heights 179 Of Distances 194 3. Mensuration of Areas 200 General Method 232 Pennsylvania Method 246 4. Of off - sets 5. Method of surveying by Intersections 257 6. Changing the scale of Maps Mean ...
الصفحة 41
... tangent , or secant of the com- plement of any arc , is called the co - sine , co tan- gent , or co - secant of the arc itself : thus FH is the sine , DI the tangent , and CI the secant of the arc DH : or they are the co - sine , co - ...
... tangent , or secant of the com- plement of any arc , is called the co - sine , co tan- gent , or co - secant of the arc itself : thus FH is the sine , DI the tangent , and CI the secant of the arc DH : or they are the co - sine , co - ...
الصفحة 43
... tangent , or sear plement of any arc , is called tee gent , or co - secant of the arc itsek z 2 sine , DI the tangent , and C 1 arc DH : or they are the co - secant of the arc HB . fig .. 27. The sine of the sup • the same with the sine ...
... tangent , or sear plement of any arc , is called tee gent , or co - secant of the arc itsek z 2 sine , DI the tangent , and C 1 arc DH : or they are the co - secant of the arc HB . fig .. 27. The sine of the sup • the same with the sine ...
الصفحة 57
... tangent , & c of that arc will be also greater . Therefore , in general , the chord , sine , tangent , & c . of any arc is proportional to the radius of the circle ; ) the same way the chord I AB is to the chord ab , in the same ...
... tangent , & c of that arc will be also greater . Therefore , in general , the chord , sine , tangent , & c . of any arc is proportional to the radius of the circle ; ) the same way the chord I AB is to the chord ab , in the same ...
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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
مقاطع مشهورة
الصفحة 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.
الصفحة 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.
الصفحة 197 - RULE. From half the sum of the three sides subtract each side severally.
الصفحة 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.
الصفحة 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.