Practical geometry for the architect, engineer, surveyor and mechanicLockwood, 1871 - 242 стор. |
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Сторінка 65
... represent one of the sides of the inscribed polygon , and the remaining sides can be drawn as in the previous examples . Thus , for example , let the required polygon have sixteen equal sides . Bisect the angle BOC F by the radius EO ...
... represent one of the sides of the inscribed polygon , and the remaining sides can be drawn as in the previous examples . Thus , for example , let the required polygon have sixteen equal sides . Bisect the angle BOC F by the radius EO ...
Сторінка 66
... represent a side of the required polygon . The number of sides which an inscribed polygon can have is limited to the number of equal parts into which a right angle can be divided ( 9 ) . These are any power of 2 and any number being a ...
... represent a side of the required polygon . The number of sides which an inscribed polygon can have is limited to the number of equal parts into which a right angle can be divided ( 9 ) . These are any power of 2 and any number being a ...
Сторінка 71
... on the ellipse can also be practically found by the use of two different scales . Let CD or CF represent 100 on any scale , and let CE measure 100 on a smaller scale ; then whatever M R , the ordinate of CONIC SECTIONS . 71.
... on the ellipse can also be practically found by the use of two different scales . Let CD or CF represent 100 on any scale , and let CE measure 100 on a smaller scale ; then whatever M R , the ordinate of CONIC SECTIONS . 71.
Сторінка 105
... represent the path which a projectile would take when discharged at any angle to the horizon less than a right - angle , the resistance of the air being entirely ignored . The line of discharge is a tangent to the parabola , and the ...
... represent the path which a projectile would take when discharged at any angle to the horizon less than a right - angle , the resistance of the air being entirely ignored . The line of discharge is a tangent to the parabola , and the ...
Сторінка 106
... represent the difference between the top and bottom radii of the column , BD its vertical height . Take A D B , equal to twice BD , in a horizontal position on a vertical board ; and let a chain be suspended from the points A and B so ...
... represent the difference between the top and bottom radii of the column , BD its vertical height . Take A D B , equal to twice BD , in a horizontal position on a vertical board ; and let a chain be suspended from the points A and B so ...
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Practical geometry for the architect, engineer, surveyor and mechanic Edward Wyndham Tarn Повний перегляд - 1871 |
Загальні терміни та фрази
A B fig arc cutting arch architectural arcs of circles asymptotes axis Bisect the angle circle cutting circle drawn circumference circumscribed common logarithm CONIC SECTIONS Construction contour convolution cube cuts the axis cutting the circle cycloid describe a circle diameter divide draw an arc draw tangents Draw the chords draw the tangent Edition ellipse engineering entasis figure find points fixed axis flexure foci focus given circle given line given point given.-Let inscribed circles intersecting join lemniscate length line A B LUDGATE HILL mean-proportional measure number of equal number of points ovolo parabola perpendicular Plates point of contrary-flexure pole produce PUBLISHED BY LOCKWOOD radii radius of curvature radius-vector Railway ratio required curve right angles right-line scale Scott Burn sides spiral square Tables touch the given trapezium triangle vertex vertical voussoirs
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