The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtEvert Duyckinck, 1814 - 508 σελίδες |
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Σελίδα 2
... called the denominator ; and if we chuse to take any number of such parts less than the whole , this is called the numerator of a fraction . The numerator , in the vulgar form , is always written over the denominator , and these are ...
... called the denominator ; and if we chuse to take any number of such parts less than the whole , this is called the numerator of a fraction . The numerator , in the vulgar form , is always written over the denominator , and these are ...
Σελίδα 16
... called the root , or first power of this number ; and its other powers are the pro- ducts , that result from multiplying the number by itself , and the last product by the same num- ber again ; and so on to any number of multipli ...
... called the root , or first power of this number ; and its other powers are the pro- ducts , that result from multiplying the number by itself , and the last product by the same num- ber again ; and so on to any number of multipli ...
Σελίδα 17
... called surd , or irrational roots . Roots are usually represented by these cha racters or exponents ; ✓ , or which signifies the square root ; thus , ✓ 9 , or 94 = 3 3 or cube root ; 64 , or 64-4 * or biquadrate root ; 16 , or 16-2 ...
... called surd , or irrational roots . Roots are usually represented by these cha racters or exponents ; ✓ , or which signifies the square root ; thus , ✓ 9 , or 94 = 3 3 or cube root ; 64 , or 64-4 * or biquadrate root ; 16 , or 16-2 ...
Σελίδα 20
... root , shall come nearest to the given number , whether greater or less ; and let that number be called the assumed root , and when thus involved , the assumed power , Let the given power , or number be repre- G. 20 EVOLUTION .
... root , shall come nearest to the given number , whether greater or less ; and let that number be called the assumed root , and when thus involved , the assumed power , Let the given power , or number be repre- G. 20 EVOLUTION .
Σελίδα 24
... called the Index ; and the fractional part will be called the Logarithm . The computation of these fractional parts , is called making Loga- rithms ; and the most troublesome part of this work is to make the Logarithms of Prime Num ...
... called the Index ; and the fractional part will be called the Logarithm . The computation of these fractional parts , is called making Loga- rithms ; and the most troublesome part of this work is to make the Logarithms of Prime Num ...
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acres altitude Answer arch base bearing blank line centre chains and links circle circle of latitude circumferentor Co-sec Co-tang column compasses contained decimal Dep Lat Dep difference Dist divided divisions draw east Ecliptic edge EXAMPLE feet field-book figures fore four-pole chains geometrical series given number half the sum Horizon glass hypothenuse inches instrument Lat Dep Lat latitude length logarithm measure meridian distance multiplied Natural Co-sines natural sine Nonius number of degrees object observed off-sets opposite parallelogram perches perpendicular plane pole pole star PROB proportion protractor Quadrant quotient radius right angles right line scale of equal SCHOLIUM screw Secant sect semicircle Sextant side sights square root station stationary distance subtracted survey taken Tang tangent theo theodolite trapezium triangle ABC trigonometry vane versed sine vulgar fraction